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Assam HS Skill Subject Power study materials
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Assam HS Skill Subject Power practice questions

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Question 1Skill Subject (vocational/skill component integrated for Classes IX to XII students)

In the vocational skill component of Assam HS, a student preparing for a career in electrical wiring is asked to identify the primary purpose of an earthing (grounding) connection in a domestic circuit. Which statement describes that purpose?

  1. It provides a low-resistance path so fault current trips the protective device safely Correct answer.
  2. It stores excess charge to reduce monthly electricity bills
  3. It raises the supply voltage to improve appliance performance
  4. It converts alternating current into direct current for appliances

Explanation

Earthing connects exposed metal parts to the earth so that, if insulation fails, fault current flows through a low-resistance path and quickly operates the fuse or MCB. This limits the rise in touch voltage and protects users from shock.

Question 2Skill Subject (vocational/skill component integrated for Classes IX to XII students)

A Class IX skill-module learner in a food processing unit is told to keep raw and cooked food on separate shelves in cold storage. Which reason best justifies this practice?

  1. Cooked food loses colour when stored near raw food
  2. Raw food drips can carry pathogens that cross-contaminate ready-to-eat cooked food Correct answer.
  3. Raw food requires a lower temperature than cooked food
  4. Separate shelves make stock counting faster during audit

Explanation

Cross-contamination occurs when juices from raw food, which may carry pathogens such as Salmonella, drip onto cooked or ready-to-eat food that will not be cooked again. Storing raw items below cooked items and on separate shelves prevents this transfer.

Question 3Skill Subject (vocational/skill component integrated for Classes IX to XII students)

During a basic carpentry practical in the Assam HS skill component, a student must mark a right angle on a wooden plank before sawing. Which tool is designed specifically for laying out and checking 90-degree angles?

  1. Spokeshave
  2. Crowbar
  3. Chisel
  4. Try square Correct answer.

Explanation

A try square has a stock and a blade set at exactly 90 degrees and is used both to mark and to check squareness on timber. The other listed tools perform prying, cutting, or shaping functions and cannot set out a right angle.

Question 4Skill Subject (vocational/skill component integrated for Classes IX to XII students)

In the retail and hospitality skill stream, a student is taught the FIFO principle for stored goods. Which action correctly applies FIFO in a small shop?

  1. Storing all goods in a single mixed bin for speed
  2. Selling the oldest stock first and rotating new deliveries behind it Correct answer.
  3. Discounting all items at the end of each month
  4. Placing newly received stock in front of older stock

Explanation

FIFO means first in, first out: older stock is sold or used before newer stock so that perishables do not expire on the shelf. Rotation places new deliveries behind existing stock, supporting this order.

Question 5Skill Subject (vocational/skill component integrated for Classes IX to XII students)

A learner in the automotive skill module is asked about the function of engine oil in a small petrol engine. Which statement states its main roles?

  1. It lubricates moving parts, reduces friction and helps carry away heat Correct answer.
  2. It cools the fuel before combustion
  3. It converts chemical energy into electrical energy
  4. It increases compression ratio and seals the fuel tank

Explanation

Engine oil forms a film between moving surfaces to reduce friction and wear, and it also helps transfer heat away from hot components while carrying contaminants to the filter. It does not change compression ratio or generate electricity.

Question 6Skill Subject (vocational/skill component integrated for Classes IX to XII students)

In the apparel and garment skill component, a student must select a stitch for joining two woven fabric pieces with a strong permanent seam. Which stitch type is standard for this purpose?

  1. Plain lockstitch Correct answer.
  2. Blanket stitch
  3. Basting stitch
  4. Chain stitch used only for decoration

Explanation

The plain lockstitch, formed by a needle and bobbin thread interlocking in the fabric, is the most common permanent seam for woven garments because it is strong and does not unravel easily. Basting is temporary and decorative stitches are not meant for structural seams.

Question 7Skill Subject (vocational/skill component integrated for Classes IX to XII students)

A Class X student in the healthcare support skill module is asked about standard hand hygiene before assisting a patient. Which practice meets the requirement?

  1. Washing with soap and water or using an alcohol-based hand rub for the recommended contact time Correct answer.
  2. Rinsing hands briefly with water alone
  3. Wearing gloves without any hand cleaning
  4. Rubbing hands with a dry towel only

Explanation

Effective hand hygiene uses soap and water or an alcohol-based rub applied for the recommended contact time so that transient microorganisms are removed or killed. Gloves are not a substitute because hands can be contaminated during glove removal.

Question 8Skill Subject (vocational/skill component integrated for Classes IX to XII students)

In the agriculture skill component, a student is told to apply compost to a field before the monsoon. Which benefit is the primary reason for adding organic compost to soil?

  1. It replaces the need for any irrigation throughout the season
  2. It improves soil structure, water retention and nutrient supply Correct answer.
  3. It immediately kills all soil-borne insect pests
  4. It raises soil pH to a fixed alkaline level in every soil

Explanation

Compost adds organic matter that improves aggregation, water-holding capacity and the slow release of nutrients to crops. It is a soil conditioner and nutrient source rather than a pesticide or a substitute for irrigation.

Question 9Skill Subject (vocational/skill component integrated for Classes IX to XII students)

A learner in the IT and IT-enabled services skill module is asked why a strong password should combine upper and lower case letters, digits and symbols. Which explanation is correct?

  1. It removes the need for two-factor authentication in all systems
  2. It makes the password easier for the user to type quickly
  3. It increases the number of possible combinations, making brute-force guessing harder Correct answer.
  4. It allows the password to be stored in plain text safely

Explanation

Each added character class enlarges the search space an attacker must cover, so brute-force and dictionary attacks take far longer. Password complexity complements, but does not replace, other controls such as multi-factor authentication.

Question 10Skill Subject (vocational/skill component integrated for Classes IX to XII students)

In a beauty and wellness skill practical, a student must sanitise metal implements such as scissors between two clients. Which procedure is appropriate?

  1. Clean off visible residue, then treat with a disinfectant solution for the specified contact time Correct answer.
  2. Rinse in cold water only
  3. Store the tools in a closed drawer without cleaning
  4. Wipe with a dry cloth and reuse immediately

Explanation

Implements must first be cleaned of hair, skin or product residue because organic matter reduces disinfectant action, then disinfected for the labelled contact time. This breaks the chain of client-to-client transmission.

Question 11Skill Subject (vocational/skill component integrated for Classes IX to XII students)

A student in the plumbing skill module observes that water flows slowly from a tap while other taps in the same house work normally. Which is the most likely local cause to check first?

  1. The overhead tank has been replaced by a larger one
  2. The municipal supply pressure for the whole locality has dropped
  3. The water meter has been removed from the premises
  4. The aerator or tap strainer is clogged with scale and debris Correct answer.

Explanation

When only one outlet is affected, the fault is usually local to that fixture, such as a blocked aerator or strainer. A locality-wide pressure drop or a supply-side change would affect several outlets at once.

Question 12Skill Subject (vocational/skill component integrated for Classes IX to XII students)

In the tourism and hospitality skill stream, a front-office trainee must handle a guest complaint about a noisy room. Which first response best reflects standard service procedure?

  1. Offer a discount only after the guest threatens a public review
  2. Ask the guest to complain in writing to the manager next week
  3. Tell the guest that noise is beyond the hotel's control and end the conversation
  4. Listen fully, apologise sincerely, and offer a practical remedy such as a room change or follow-up Correct answer.

Explanation

Service recovery begins with attentive listening and a sincere apology, followed by a concrete action the staff member can deliver. Offering a remedy promptly protects guest satisfaction and prevents escalation.

Question 13Skill Subject (vocational/skill component integrated for Classes IX to XII students)

A student in the electronics skill module measures a resistor marked with colour bands brown, black, red and gold. What value does this indicate?

  1. 1000 ohms with 5 percent tolerance Correct answer.
  2. 1200 ohms with 5 percent tolerance
  3. 10 ohms with 5 percent tolerance
  4. 100 ohms with 10 percent tolerance

Explanation

Brown is 1, black is 0, so the first two digits form 10; red as multiplier means multiply by 100, giving 1000 ohms. Gold in the tolerance band denotes plus or minus 5 percent.

Question 14Skill Subject (vocational/skill component integrated for Classes IX to XII students)

During a welding practical in the metalwork skill component, a student must select personal protective equipment before striking an arc. Which combination is appropriate for arc welding?

  1. Welding helmet with dark filter, leather gloves, apron and safety boots Correct answer.
  2. Cotton shirt, open sandals and sunglasses
  3. Safety goggles, shorts and canvas shoes
  4. Face mask, rubber gloves and a woollen cap

Explanation

Arc welding emits intense ultraviolet and infrared radiation, spatter and hot metal, so a helmet with a proper dark filter, leather gloves, an apron and closed safety boots are required. Ordinary sunglasses or goggles do not block the arc radiation adequately.

Question 15Skill Subject (vocational/skill component integrated for Classes IX to XII students)

A Class XII learner in the entrepreneurship skill module is preparing a simple business plan for a small tailoring unit. Which element belongs in the operations section rather than the marketing section?

  1. The customer segment the unit will target
  2. The advertising plan for the local school catchment area
  3. The daily production capacity and the list of machines required Correct answer.
  4. The price at which a school uniform set will be sold

Explanation

The operations section describes how the business will produce and deliver, including capacity, equipment and workflow. Pricing, promotion and target segments are marketing decisions and belong in the marketing section.

Question 16Skill Subject (vocational/skill component integrated for Classes IX to XII students)

In the mobile repair skill module, a phone does not charge and the student suspects the charging port. Which diagnostic step should be taken before replacing the port?

  1. Replace the battery without any measurement
  2. Reflash the operating system immediately
  3. Test with a known-good charger and cable, then inspect and clean the port for lint or damage Correct answer.
  4. Replace the display assembly to rule out a display fault

Explanation

Fault isolation starts with the simplest external causes: a faulty charger or cable and debris in the port. Only after these are excluded should internal components such as the port or battery be replaced.

Question 17Skill Subject (vocational/skill component integrated for Classes IX to XII students)

In the agriculture skill module, a student notices yellowing of older leaves with poor tillering in a paddy field. Which nutrient deficiency is most consistent with these symptoms?

  1. Excess phosphorus
  2. Nitrogen deficiency Correct answer.
  3. Boron toxicity
  4. Calcium deficiency in young leaves

Explanation

Nitrogen is mobile in the plant, so deficiency shows first as yellowing of older leaves along with reduced tillering and stunted growth. Phosphorus deficiency typically causes purplish or dark green foliage rather than this pattern.

Question 18Skill Subject (vocational/skill component integrated for Classes IX to XII students)

A learner in the tourism skill stream is preparing an itinerary for visitors to a wildlife area in Assam. Which practice best supports responsible and sustainable tourism?

  1. Leaving the marked trail to shorten the route
  2. Collecting plants and stones as souvenirs for the group
  3. Feeding wild animals from the vehicle to attract them closer
  4. Keeping a safe distance, avoiding noise and taking only photographs Correct answer.

Explanation

Responsible wildlife tourism minimises disturbance: visitors keep a safe distance, stay quiet, remain on marked trails and leave natural objects in place. Feeding animals alters behaviour and creates dependency and risk.

Question 19Skill Subject (vocational/skill component integrated for Classes IX to XII students)

In the apparel skill module, a student is asked to calculate the fabric required for a simple rectangular table cover of length 2 m and width 1 m, with 10 cm extra allowed on each of the four sides. What minimum fabric area is needed?

  1. 2.00 square metres
  2. 2.64 square metres Correct answer.
  3. 4.00 square metres
  4. 3.24 square metres

Explanation

Adding 10 cm to each side increases both length and width by 20 cm, giving 2.2 m by 1.2 m. The area is therefore 2.2 multiplied by 1.2, which equals 2.64 square metres.

Question 20Skill Subject (vocational/skill component integrated for Classes IX to XII students)

In the healthcare support module, a student records a patient's temperature as 38.6 degrees Celsius. How should this reading be interpreted and reported?

  1. It is above the normal range and should be reported to the supervising nurse Correct answer.
  2. It is normal and needs no reporting
  3. It is a machine error and should be discarded silently
  4. It is below normal and indicates hypothermia

Explanation

Normal oral body temperature is about 36.5 to 37.5 degrees Celsius, so 38.6 indicates fever and must be reported to the supervising health professional. Support staff record and escalate observations rather than deciding treatment themselves.

Question 21Skill Subject (vocational/skill component integrated for Classes IX to XII students)

In the electrical skill module, a student must select the correct fuse rating for a 230 V circuit supplying a 1150 W appliance. Using current equals power divided by voltage, which standard rating is the minimum suitable choice?

  1. 10 A
  2. 2 A
  3. 5 A Correct answer.
  4. 20 A

Explanation

The current is 1150 divided by 230, which equals 5 A. A fuse must be rated at or just above the operating current, so 5 A is the minimum standard rating that suits this load.

Question 22Skill Subject (vocational/skill component integrated for Classes IX to XII students)

A student in the IT-enabled services module is asked to compare two data-entry processes. Process A takes 4 minutes per record with 1 error per 100 records; Process B takes 3 minutes per record with 8 errors per 100 records. Which analysis is most defensible?

  1. The two processes cannot be compared at all
  2. Error rates do not matter in data entry work
  3. Process A is better on quality, but the choice depends on the cost of correcting errors Correct answer.
  4. Process B is always better because it is faster

Explanation

Process A is slower but far more accurate, while Process B saves time but generates eight times the errors. A sound decision weighs the rework and business cost of those errors against the time saved.

Question 23Skill Subject (vocational/skill component integrated for Classes IX to XII students)

In the automotive skill module, a learner finds that a vehicle pulls to one side while braking and that one front tyre shows uneven wear. Which diagnosis is most consistent with these combined symptoms?

  1. A weak battery affecting the ignition system
  2. A blocked air filter reducing engine power
  3. Low engine oil level
  4. A sticking brake caliper or uneven braking force on one side Correct answer.

Explanation

Pulling to one side under braking points to unequal braking force, often from a sticking caliper or seized piston, and the associated drag can cause uneven tyre wear. Engine and electrical faults do not produce directional pull during braking.

Question 24Skill Subject (vocational/skill component integrated for Classes IX to XII students)

A Class XII learner plans a small food-processing enterprise producing packaged pickles. Which combination of practices best addresses both food safety and legal compliance for retail sale?

  1. Maintaining hygiene, using food-grade packaging, and labelling with ingredients, net weight, date and licence details Correct answer.
  2. Storing finished jars beside raw ingredients to save shelf space
  3. Selling without labels to reduce printing cost and using any available container
  4. Adding extra preservatives beyond permitted limits to extend shelf life

Explanation

Safe retail food requires hygienic processing, food-grade packaging and a label that discloses ingredients, net quantity, date information and the required licence or registration details. This protects consumers and meets regulatory expectations for sale.

Question 25Skill Subject (vocational/skill component integrated for Classes IX to XII students)

In the carpentry module, a student must join two pieces of timber at right angles so that the end grain of one piece is fixed into a matching recess in the other. Which joint is being described?

  1. Dovetail joint
  2. Mortise and tenon joint Correct answer.
  3. Lap joint with no recess
  4. Butt joint fixed with a single nail

Explanation

A mortise and tenon joint inserts a projecting tenon into a cut mortise, providing strong resistance to pulling and twisting. It is a classic right-angle frame joint used in furniture and carpentry.

Question 26Skill Subject (vocational/skill component integrated for Classes IX to XII students)

In the food processing skill component, a student pasteurises bottled mango juice at 72 degrees Celsius for 15 seconds and then fills it into pre-sterilised bottles. Which outcome is the main purpose of this heat treatment?

  1. It makes the juice completely sterile and shelf-stable without refrigeration for years
  2. It reduces the number of spoilage organisms enough to extend shelf life while retaining flavour Correct answer.
  3. It increases the sugar concentration of the juice to prevent microbial growth
  4. It removes all enzymes and vitamins from the juice so that it cannot darken

Explanation

Flash pasteurisation destroys most vegetative spoilage organisms and some enzymes while preserving colour and flavour better than prolonged boiling. It does not achieve commercial sterility, so the product still needs refrigeration or further preservation. The aim is a practical extension of shelf life, not absolute sterility.

Question 27Skill Subject (vocational/skill component integrated for Classes IX to XII students)

A student in the retail skill component is asked to explain why a shopkeeper records the opening stock, purchases and closing stock of an item. Which figure does this record allow the shopkeeper to calculate?

  1. The quantity of the item actually sold during the month Correct answer.
  2. The rate of tax charged on the item by the supplier
  3. The rent payable for the shop premises during the month
  4. The number of customers who visited the shop during the month

Explanation

Quantity sold equals opening stock plus purchases minus closing stock, which is the standard stock reconciliation used in retail. This helps the shopkeeper detect shrinkage, plan reordering and assess demand. The other figures come from separate records such as attendance sheets, rent agreements or invoices.

Question 28Skill Subject (vocational/skill component integrated for Classes IX to XII students)

In the automotive skill module, a trainee must check the tread depth of a car tyre. Which measurement approach gives a valid tread depth reading?

  1. Measuring the diameter of the wheel rim with a vernier calliper
  2. Measuring the air pressure inside the tyre with a pressure gauge
  3. Measuring from the top of the tread block to the bottom of the main circumferential groove with a depth gauge Correct answer.
  4. Measuring the widest distance across the tyre sidewall with a measuring tape

Explanation

Tread depth is defined as the distance from the top of the tread block to the base of the main groove, usually taken at several points across the tyre. This is why a dedicated tread depth gauge is used. Sidewall width, inflation pressure and rim diameter are different parameters entirely.

Question 29Skill Subject (vocational/skill component integrated for Classes IX to XII students)

A Class XI learner in the electrical skill module is wiring a socket outlet circuit. Which practice correctly protects a person touching the metal body of an appliance if a live wire contacts it?

  1. Connecting the appliance body to the neutral conductor
  2. Connecting the appliance body to the phase conductor through a switch
  3. Connecting the appliance metal body to the earth conductor Correct answer.
  4. Insulating the appliance body with a layer of paint

Explanation

Earthing provides a low-resistance path so that fault current flows to earth and trips the protective device, while holding the metal body near earth potential. This is the standard protective measure against electric shock from enclosure faults. Connecting the body to neutral or phase creates a dangerous condition rather than protection.

Question 30Skill Subject (vocational/skill component integrated for Classes IX to XII students)

In the construction skill component, a student is asked to identify the purpose of providing a damp-proof course in a brick wall near ground level. Which function does it serve?

  1. It provides a fixing surface for door frames in the wall
  2. It allows rainwater to drain away from the roof surface
  3. It increases the load-bearing strength of the wall above the plinth
  4. It prevents moisture from rising through the wall by capillary action Correct answer.

Explanation

A damp-proof course is a moisture-resistant layer placed across the wall to break the continuous path of capillaries, preventing groundwater from rising into the structure. This protects plaster, finishes and internal air quality. It is not a structural strengthening element or a roof drainage feature.

Question 31Skill Subject (vocational/skill component integrated for Classes IX to XII students)

A student in the apparel design skill module is grading a pattern from size M to size L. Which change correctly describes pattern grading?

  1. Adding a fixed amount to every pattern piece equally in all directions
  2. Increasing each pattern piece by regular increments at defined points to preserve fit proportions Correct answer.
  3. Redrawing the design from scratch without reference to the original block
  4. Enlarging the pattern only along the length while keeping all widths unchanged

Explanation

Grading applies systematic increments at specified grade points so that the garment grows in proportion across bust, waist, hip and length. Uniform enlargement in all directions distorts fit because bodies do not scale equally. Grading is therefore a rule-based adjustment, not a freehand redesign.

Question 32Skill Subject (vocational/skill component integrated for Classes IX to XII students)

In the healthcare support module, a student is asked why the pulse of an adult is commonly counted at the radial artery on the wrist. Which reason is correct?

  1. The radial artery is the largest vessel in the arm and can be seen clearly
  2. The radial artery is the only artery in the body that carries oxygenated blood
  3. The radial artery carries blood at a pressure higher than the heart itself
  4. The radial artery lies close to the skin over bone, making the pulse easy to feel and count Correct answer.

Explanation

The radial artery runs superficially over the radius, so it can be compressed lightly against bone and its pulsations counted without discomfort. This makes it a safe, accessible site for routine pulse assessment. It is neither unique in carrying oxygenated blood nor the largest vessel of the arm.

Question 33Skill Subject (vocational/skill component integrated for Classes IX to XII students)

A learner in the IT and IT-enabled services module must back up a spreadsheet before editing it. Which action creates a separate copy that preserves the original file unchanged?

  1. Pressing Ctrl+S to save the file under its existing name
  2. Opening the file in read-only mode and closing it again
  3. Using Save As to store the file with a new name in a chosen folder Correct answer.
  4. Renaming the file extension from .xlsx to .txt

Explanation

Save As writes the current workbook to a new file name or location, leaving the original file intact as a backup. Ordinary saving overwrites the original with the edited version. Changing the extension or opening read-only does not create a usable copy.

Question 34Skill Subject (vocational/skill component integrated for Classes IX to XII students)

In the beauty and wellness skill module, a learner must select a product for a client with sensitive skin and a history of allergic reactions. Which approach is most appropriate before a full facial treatment?

  1. Perform a patch test on a small area such as the inner forearm and observe for a reaction Correct answer.
  2. Apply the full-strength product to the whole face immediately to test tolerance
  3. Mix several products together so that the concentration of each is reduced
  4. Skip the consultation and proceed because natural products cannot cause allergy

Explanation

A patch test applies a small amount of the product to a limited area and checks for redness, itching or swelling before wider use. This reduces the risk of a severe reaction during a full treatment. Assuming natural products are safe or diluting by mixing is not a reliable safeguard.

Question 35Skill Subject (vocational/skill component integrated for Classes IX to XII students)

In the plumbing skill module, a student must select the pipe size for a branch supplying a single washbasin tap. Which principle guides the choice?

  1. The branch pipe should match the diameter of the main supply regardless of the fixture
  2. The branch pipe should be sized according to the expected flow rate and the fixture's required pressure Correct answer.
  3. The branch pipe should always be the largest available size to be safe
  4. The branch pipe should be smaller than the fixture outlet to increase velocity

Explanation

Branch sizing is based on the fixture's design flow rate and the minimum pressure needed at the outlet, using standard sizing tables. Oversizing wastes material and can reduce scouring velocity, while undersizing causes poor flow. Matching the main or deliberately narrowing the branch ignores these requirements.

Question 36Skill Subject (vocational/skill component integrated for Classes IX to XII students)

A Class XII learner in the tourism and hospitality skill stream is asked to explain the purpose of a reservation register in a small guest house. Which purpose does it serve?

  1. Recording the maintenance history of room air conditioners
  2. Recording the daily menu served in the guest house dining room
  3. Recording staff attendance and duty rosters
  4. Recording confirmed bookings so that rooms are not double-booked Correct answer.

Explanation

A reservation register lists guest names, dates and room numbers for confirmed bookings, which prevents the same room being allotted twice. It also supports arrival planning and occupancy checks. Menu, staff and maintenance records belong to separate registers.

Question 37Skill Subject (vocational/skill component integrated for Classes IX to XII students)

In the electronics skill module, a student must identify the purpose of a diode in a simple rectifier circuit. Which function does it perform?

  1. It stores charge and releases it slowly to smooth the output
  2. It allows current to flow easily in one direction and blocks it in the reverse direction Correct answer.
  3. It amplifies the small input signal to a larger output
  4. It changes the frequency of the alternating supply

Explanation

A diode is a two-terminal semiconductor device that conducts in forward bias and blocks in reverse bias, which is how it converts alternating current into pulsating direct current. Amplification, charge storage and frequency change are functions of other components. This unidirectional conduction is the basis of rectification.

Question 38Skill Subject (vocational/skill component integrated for Classes IX to XII students)

In the welding skill component, a student notices porosity in a completed fillet weld. Which cause is most consistent with this defect?

  1. Travel speed that is too slow for the electrode used
  2. Damp electrodes or contamination such as oil and rust on the joint surfaces Correct answer.
  3. Using a current setting slightly below the recommended range
  4. A weld bead that is too wide for the joint thickness

Explanation

Porosity is caused by gas trapped in the solidifying weld metal, commonly from moisture in the electrode coating or from oil, paint and rust on the joint. Drying electrodes and cleaning the joint before welding are standard preventive measures. Travel speed and bead width mainly affect profile and fusion rather than gas entrapment.

Question 39Skill Subject (vocational/skill component integrated for Classes IX to XII students)

A learner in the entrepreneurship skill module must estimate the break-even point for a small unit making paper bags. Which information is essential for the calculation?

  1. The number of employees and their educational qualifications
  2. The fixed costs, the selling price per bag and the variable cost per bag Correct answer.
  3. The location of the nearest bank branch to the unit
  4. The brand name and logo design of the unit

Explanation

Break-even quantity equals fixed costs divided by the contribution per unit, where contribution is selling price minus variable cost. Without these three figures the calculation cannot be made. Staff qualifications, branding and bank location affect other aspects of the business but not this computation.

Question 40Skill Subject (vocational/skill component integrated for Classes IX to XII students)

In the agriculture skill module, a student is advised to adopt crop rotation instead of growing the same cereal every season. Which benefit most directly explains this advice?

  1. It removes the need for any irrigation during the crop season
  2. It guarantees a higher market price for every crop grown
  3. It eliminates the need for ploughing before sowing
  4. It interrupts pest and disease cycles and helps maintain soil fertility Correct answer.

Explanation

Rotating with different crop families breaks the life cycle of pests and pathogens that survive on a single host, and legumes can add nitrogen to the soil. This reduces dependence on chemical control and supports soil health. Rotation does not remove irrigation or tillage needs, nor does it fix prices.

Question 41Skill Subject (vocational/skill component integrated for Classes IX to XII students)

In the carpentry skill module, a student must select an adhesive for joining wooden components that will be exposed to damp conditions. Which choice is most suitable?

  1. A water-resistant wood adhesive rated for exterior use Correct answer.
  2. A hot-melt glue stick applied with a low-temperature gun
  3. Ordinary white craft glue intended for paper and card
  4. Rubber cement used for mounting photographs

Explanation

Exterior-grade wood adhesives are formulated to resist moisture and maintain bond strength in damp conditions. Craft glue, hot-melt adhesive and rubber cement lose strength when exposed to water and are meant for dry interior or light-duty work. Choosing the adhesive to match the service environment is the key principle.

Question 42Skill Subject (vocational/skill component integrated for Classes IX to XII students)

A student in the mobile repair skill module must replace a damaged display assembly. Which precaution protects the device and the technician during the repair?

  1. Keep the battery connected so that the screen can be tested while removing it
  2. Disconnect the battery connector before handling the display flex cable Correct answer.
  3. Heat the battery directly with a hot air gun to soften the adhesive
  4. Pry the display off with a metal screwdriver at the earpiece end

Explanation

Disconnecting the battery before working on flex cables prevents short circuits and accidental power-on during the repair. Metal tools near a live board can bridge contacts and damage components. Direct heating of the battery is a serious safety hazard and should never be done.

Question 43Skill Subject (vocational/skill component integrated for Classes IX to XII students)

In the electrical skill module, a student measures the resistance of a heating element with a multimeter and obtains a reading far higher than the expected value. Which interpretation is most reasonable?

  1. The element is working normally because higher resistance always means more heat
  2. The element is open or partially broken and will produce little or no heat Correct answer.
  3. The element is short-circuited and will draw excessive current
  4. The multimeter is faulty because resistance cannot be measured on heating elements

Explanation

A heating element's resistance is fixed by its wire; a reading much higher than specification suggests the element is open, corroded or partly burnt out, so current and heat output fall. A short circuit would show near-zero resistance. Resistance measurement is a standard check for such elements.

Question 44Skill Subject (vocational/skill component integrated for Classes IX to XII students)

In the healthcare support module, a student must move a conscious patient from a bed to a chair. Which practice best protects both the patient and the worker?

  1. Lift the patient by holding the arms and pulling quickly towards the chair
  2. Ask the patient to stand alone while the worker turns away to arrange the chair
  3. Explain the procedure, position the chair close, and use a controlled transfer with bent knees and a straight back Correct answer.
  4. Keep the bed at its highest level so that the patient can step down onto the chair

Explanation

Safe transfer combines patient explanation and consent, close positioning of the chair, and good body mechanics with bent knees and a straight back to reduce strain. This lowers the risk of falls and musculoskeletal injury. Pulling by the arms, leaving the patient unsupported or using a high bed all increase risk.

Question 45Skill Subject (vocational/skill component integrated for Classes IX to XII students)

A learner in the IT-enabled services module is asked why a spreadsheet formula should use cell references rather than typed numbers. Which reason is most accurate?

  1. Cell references convert the spreadsheet into a database automatically
  2. Cell references make the formula recalculate automatically when the source values change Correct answer.
  3. Cell references prevent other users from opening the file
  4. Cell references reduce the file size of the spreadsheet

Explanation

When a formula refers to cells instead of hard-coded numbers, editing any source value updates the result immediately, which keeps calculations consistent and reduces errors. This is the core advantage of referencing in spreadsheets. File size, access control and database conversion are unrelated effects.

Question 46Skill Subject (vocational/skill component integrated for Classes IX to XII students)

In the tourism skill stream, a trainee is preparing a guided walk for visitors through a village known for its handloom weaving. Which practice best supports responsible and respectful tourism?

  1. Seeking the weavers' consent, agreeing on a fair price for demonstrations, and briefing visitors on local customs Correct answer.
  2. Encouraging visitors to bargain heavily so that they get the lowest possible price
  3. Photographing the weavers at work and publishing the images without informing them
  4. Taking visitors into a weaver's home without asking permission to increase authenticity

Explanation

Responsible tourism requires informed consent, fair payment for local services and respect for host customs, which protects community dignity and sustains local livelihoods. Entering homes uninvited, aggressive bargaining or unconsented photography exploits the hosts. Consent and fair exchange are the guiding principles.

Question 47Skill Subject (vocational/skill component integrated for Classes IX to XII students)

In the apparel skill module, a student is asked to explain why a seam sample is stitched and washed before bulk production of a cotton shirt. Which purpose does this serve?

  1. To check that the seam strength and appearance hold up after washing and shrinkage Correct answer.
  2. To decide the retail price of the finished shirt
  3. To determine the number of buttons required on the placket
  4. To select the colour of thread used for the brand label

Explanation

A seam sample subjected to washing reveals whether the stitch type, thread and seam allowance survive shrinkage, fraying and puckering. This allows corrections before bulk cutting and stitching. Pricing, button counts and label thread colour are decided from other specifications.

Question 48Skill Subject (vocational/skill component integrated for Classes IX to XII students)

In the construction skill component, a student is asked why concrete is cured by keeping it moist for several days after casting. Which reason is correct?

  1. Moisture prevents the cement from setting at all so that the mix stays workable
  2. Moisture washes away excess aggregate from the concrete surface
  3. Moisture cools the concrete so that it expands and fills the formwork
  4. Moisture supports continued hydration of cement, which develops strength and durability Correct answer.

Explanation

Cement gains strength through a chemical hydration reaction that needs water; if the concrete dries too early, hydration stops and strength and durability suffer. Curing keeps the surface moist so that the reaction can continue. It is not intended to prevent setting or to wash out aggregate.

Question 49Skill Subject (vocational/skill component integrated for Classes IX to XII students)

In the automotive skill module, a learner finds that the brake pedal feels spongy and travels further than usual. Which fault best explains this symptom?

  1. A dirty air filter in the engine
  2. Air trapped in the hydraulic brake lines Correct answer.
  3. Worn tread on the rear tyres
  4. A loose exhaust mounting bracket

Explanation

Air is compressible, so bubbles in the hydraulic circuit absorb pedal force and produce a spongy, long-travel pedal. The remedy is bleeding the brake system to remove air. Tyre wear, exhaust mountings and the engine air filter do not affect hydraulic pedal feel.

Question 50Skill Subject (vocational/skill component integrated for Classes IX to XII students)

In the food processing skill component, a student must store opened dry spices in the unit's pantry. Which storage practice best preserves quality and safety?

  1. Keep them in open bowls near the cooking range for easy access
  2. Store them in airtight containers in a cool, dry place away from direct sunlight Correct answer.
  3. Mix all spices together in one large container to save shelf space
  4. Store them in the refrigerator while still in their paper packets

Explanation

Airtight containers exclude moisture and pests, while a cool, dry, dark location slows loss of volatile oils that carry aroma. This preserves flavour and reduces spoilage and contamination. Open bowls, damp refrigerator packets or commingled mixes all accelerate quality loss.