RSSB Lab Attendant study materials
RSSB Lab Attendant study resources

RSSB Lab Attendant flashcards

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33 cards. Read the term and the definition here. The deck at the top of this page is optional.

Rajasthan Diwas date
Rajasthan Day is celebrated on 30 March, marking the 1949 formation of the state through the merger of princely states into the Union of India.
Rajasthan Assembly seats
The Rajasthan Legislative Assembly has 200 elected members. The state elects 25 Lok Sabha members and 10 Rajya Sabha members.
Current President of India
Droupadi Murmu became the 15th President of India in July 2022, the first tribal woman and second woman to hold the office.
Chandrayaan-3 landing
India's Chandrayaan-3 mission landed its Vikram lander near the lunar south pole in August 2023, making India the first country to reach that region.
Highest peak in Rajasthan
Guru Shikhar, at about 1,722 metres on Mount Abu in Sirohi district, is the highest peak of the Aravalli range and of Rajasthan.
Aravalli range significance
The Aravalli is among the world's oldest fold mountain ranges. It divides Rajasthan into the fertile eastern plains and the arid western Thar Desert.
Banas River
The Banas is the only major river that flows entirely within Rajasthan. It rises in the Aravalli hills and joins the Chambal.
Kalbelia dance
Kalbelia is a Rajasthan folk dance of the Kalbelia snake-charmer community, recognised by UNESCO as an Intangible Cultural Heritage of Humanity.
UNESCO hill forts
Six Rajasthan forts are UNESCO World Heritage sites: Chittorgarh, Kumbhalgarh, Ranthambore, Amber, Jaisalmer, and Gagron.
Simple interest formula
Simple interest equals principal multiplied by rate multiplied by time, divided by 100. The amount is principal plus interest.
Average formula
Average equals the sum of all values divided by the number of values. Adding a new value changes the average to the new sum divided by n+1.
km/h to m/s
To convert kilometres per hour to metres per second, multiply by 5/18. To convert metres per second to kilometres per hour, multiply by 18/5.
Alphabet reverse position
In coding-decoding, letters have forward positions A=1 to Z=26. The reverse position is 27 minus the forward position, so A=26 and Z=1.
संज्ञा के भेद
संज्ञा के पाँच भेद हैं - व्यक्तिवाचक, जातिवाचक, भाववाचक, समूहवाचक और द्रव्यवाचक। जैसे 'मोहन' व्यक्तिवाचक और 'मिठास' भाववाचक है।
दीर्घ स्वर संधि
जब दो समान या अ, आ, इ, ई, उ, ऊ के बाद समान स्वर मिलते हैं तो दीर्घ स्वर बनता है। जैसे विद्या + आलय = विद्यालय।
अनुप्रास अलंकार
अनुप्रास अलंकार में एक ही वर्ण की आवृत्ति एक से अधिक बार होती है, जैसे 'चारु चंद्र की चंचल किरणें' में 'च' की पुनरावृत्ति।
सकर्मक क्रिया
जिस क्रिया का कर्म होता है उसे सकर्मक क्रिया कहते हैं, जैसे 'राम ने पत्र लिखा' में 'लिखा' सकर्मक है क्योंकि उसका कर्म 'पत्र' है।
Subject-verb agreement rule
A singular subject takes a singular verb and a plural subject takes a plural verb. Words like each, every, either, and neither take singular verbs.
Active to passive voice
In passive voice the object becomes the subject, followed by a form of 'be' and the past participle, plus 'by' before the agent.
Since versus for
Use 'since' with a specific point in time, such as since 2010. Use 'for' with a duration of time, such as for five years.
Articles a and an
Use 'a' before a consonant sound and 'an' before a vowel sound. Use 'the' for definite or unique references.
Memory unit conversions
One byte equals eight bits. One kilobyte equals 1024 bytes, one megabyte equals 1024 kilobytes, and one gigabyte equals 1024 megabytes.
Excel SUM function
In MS Excel, a formula begins with '='. SUM(A1:A10) adds all values in the range A1 through A10.
Ctrl+Z shortcut
Ctrl+Z undoes the last action in most Windows applications. Ctrl+Y often redoes the action that was undone.
HTTPS meaning
HTTPS is HTTP with encryption through TLS/SSL, protecting data exchanged between the browser and the website. HTTP alone is unencrypted.
Acid dilution rule
Always add acid slowly to water while stirring, never water to concentrated acid, because the reaction is strongly exothermic and can spatter.
Laboratory PPE
Standard laboratory PPE includes a lab coat, safety goggles, and gloves. Long hair must be tied back and open footwear avoided.
Pipetting safety
Never pipette chemicals by mouth. Always use a rubber bulb or mechanical pipettor to draw liquid into a pipette.
Weighing on a balance
Level the balance, close the doors, press tare or zero, place a weighing boat, then add material until the display shows the target mass.
Ohm's law
Ohm's law states that voltage equals current multiplied by resistance, V = IR. Electrical power equals voltage times current, P = VI.
pH scale
The pH scale runs from 0 to 14. Values below 7 are acidic, 7 is neutral, and values above 7 are basic or alkaline.
Photosynthesis equation
Six carbon dioxide molecules plus six water molecules, using light energy and chlorophyll, produce one glucose molecule and six oxygen molecules.
Mitochondria function
Mitochondria are cell organelles that produce ATP through cellular respiration, supplying energy for the cell's metabolic activities.