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HSC Construction (VET) study materials
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HSC Construction (VET) practice questions

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Question 1Construction industry induction and workplace safety

On a construction site, what is the main purpose of a site-specific induction?

  1. To replace the general safety training a worker completed elsewhere
  2. To introduce workers to the hazards and rules unique to that particular site Correct answer.
  3. To record the worker's tax and payroll details for the project
  4. To assess the worker's trade skills before starting tasks

Explanation

A site induction explains the hazards, layout, emergency arrangements and rules that apply to that specific workplace, which a worker cannot know from generic training. It supplements rather than replaces general safety training.

Question 2Construction industry induction and workplace safety

A worker is unsure how to safely use a nail gun on site. What is the most appropriate first action?

  1. Read the label on the nail box before starting
  2. Use it carefully based on previous experience with similar tools
  3. Wait until another worker demonstrates it and then copy them
  4. Ask a supervisor for instruction and training before operating it Correct answer.

Explanation

Workers must be trained and competent before using plant or equipment, so the correct step is to seek instruction from a supervisor. Guessing or copying others does not establish competency.

Question 3Construction industry induction and workplace safety

What does 'duty of care' require of a worker on a construction site?

  1. Completing all high-risk tasks without supervision once inducted
  2. Purchasing their own personal protective equipment
  3. Reporting every minor incident only at the end of the project
  4. Taking reasonable care for their own safety and that of others affected by their work Correct answer.

Explanation

Duty of care means a worker must take reasonable care for their own health and safety and ensure their acts or omissions do not harm others. It applies continuously, not just at project completion.

Question 4Construction industry induction and workplace safety

Which item of personal protective equipment is specifically designed to protect against head injury from falling objects?

  1. Safety glasses
  2. Steel-capped boots
  3. Hearing protection
  4. Hard hat Correct answer.

Explanation

A hard hat is designed to absorb and deflect impact from falling objects and to protect the head. Other PPE items protect different parts of the body.

Question 5Construction industry induction and workplace safety

What is the primary purpose of a Safe Work Method Statement (SWMS) for high-risk construction work?

  1. To describe how the high-risk work will be done and the controls that will be applied Correct answer.
  2. To list the workers' qualifications and licences
  3. To calculate the project's labour costs
  4. To record the site's daily weather conditions

Explanation

A SWMS sets out the high-risk work to be carried out, the hazards involved, and the risk controls and measures to be applied. It is a planning and control document, not a financial or personnel record.

Question 6Construction industry induction and workplace safety

A worker notices a damaged electrical lead on a power tool. What should they do?

  1. Use it only for short tasks to reduce risk
  2. Pass it to another worker who needs it
  3. Tag it out of service and report it to the supervisor Correct answer.
  4. Wrap the damaged section with tape and continue using it

Explanation

Damaged electrical equipment must be taken out of service, tagged and reported so it can be repaired or replaced. Taping or continuing use exposes workers to electric shock.

Question 7Construction industry induction and workplace safety

Which of the following best describes a 'hierarchy of control' when managing a risk?

  1. A register of all injuries that have happened on site
  2. A list of the workers who are authorised to enter a site
  3. A ranking of controls from most effective (eliminating the hazard) to least effective (PPE) Correct answer.
  4. A schedule of when safety inspections will occur

Explanation

The hierarchy of control ranks risk controls by effectiveness, starting with eliminating the hazard and ending with PPE as the last line of defence. It guides selection of the most reliable control reasonably practicable.

Question 8Construction industry induction and workplace safety

In an emergency evacuation on a construction site, what should workers do first?

  1. Stop work and proceed to the designated assembly area by the marked route Correct answer.
  2. Finish the task they are working on before leaving
  3. Collect all their personal tools and equipment
  4. Wait for a colleague to confirm the alarm is real

Explanation

On hearing an evacuation signal, workers should stop work immediately and follow the marked route to the assembly area so they can be accounted for. Delaying to finish tasks or gather tools puts people at risk.

Question 9Construction industry induction and workplace safety

Why is a pre-start or toolbox talk held at the beginning of a shift?

  1. To conduct the annual performance review
  2. To distribute new uniforms to workers
  3. To discuss the day's tasks, hazards and controls with the work crew Correct answer.
  4. To negotiate wages for the coming week

Explanation

Toolbox talks are short briefings used to communicate the day's tasks, associated hazards and the controls to be used. They keep the crew informed and reinforce safe work practices.

Question 10Construction industry induction and workplace safety

A worker is directed to work at height on a roof edge with no guardrail. What is the most appropriate response?

  1. Proceed carefully because the task is short
  2. Ask a co-worker to hold onto them while they work
  3. Tie a rope around the waist as a substitute for a harness
  4. Refuse to start until a suitable fall control such as guardrail or harness system is in place Correct answer.

Explanation

Work at height requires suitable fall prevention controls such as guardrails, scaffolds or a properly anchored harness system. Working unprotected, even briefly, exposes the worker to a serious fall risk.

Question 11Construction industry induction and workplace safety

What is the purpose of a confined space entry permit?

  1. To record the worker's lunch break times
  2. To authorise overtime for the crew
  3. To document that hazards have been assessed and controls are in place before entry Correct answer.
  4. To confirm the worker has paid for their site access card

Explanation

A confined space entry permit records the hazard assessment, atmospheric testing and controls that must be in place before and during entry. It ensures entry only occurs under controlled, safe conditions.

Question 12Construction industry induction and workplace safety

Which of the following is a common hazard associated with manual handling of building materials?

  1. Electrical shock from overhead power lines
  2. Chemical burns from wet concrete
  3. Musculoskeletal injury from lifting awkward or heavy loads Correct answer.
  4. Hearing damage from impact tools

Explanation

Manual handling hazards primarily cause musculoskeletal injuries such as strains and sprains from lifting, carrying or awkward postures. The other options describe different hazard types.

Question 13Construction industry induction and workplace safety

A worker sees a deep unguarded trench on site where another worker could fall in. What should they do?

  1. Step over it carefully and continue working
  2. Report it immediately and ensure the area is barricaded or made safe Correct answer.
  3. Ignore it because it is not their area of work
  4. Wait until the end of the week to mention it

Explanation

Uncontrolled hazards such as an unguarded trench must be reported immediately and made safe, for example by barricading, to prevent falls. Duty of care applies to hazards affecting anyone on site.

Question 14Construction industry induction and workplace safety

What does 'hazard' mean in the context of workplace safety?

  1. An event that has already caused an injury
  2. The likelihood that harm will occur
  3. The cost of controlling a risk
  4. A source or situation with the potential to cause harm Correct answer.

Explanation

A hazard is any source or situation with the potential to cause harm, such as an exposed edge or a live wire. Risk, by contrast, is the likelihood and consequence of harm occurring.

Question 15Construction industry induction and workplace safety

Which of these is an example of a risk control that eliminates a hazard rather than reducing it?

  1. Putting a warning sign near the substance
  2. Removing the hazardous substance from the site entirely Correct answer.
  3. Wearing gloves while handling a hazardous substance
  4. Training workers to handle the substance carefully

Explanation

Elimination removes the hazard completely and is the most effective control in the hierarchy. Gloves, signage and training only reduce exposure while the hazard remains.

Question 16Construction industry induction and workplace safety

A worker is using a hazardous chemical and needs information about its safe handling. Where should they look?

  1. The project's payroll records
  2. The site's visitor sign-in book
  3. The safety data sheet and label for the chemical Correct answer.
  4. The delivery docket from the supplier

Explanation

A safety data sheet and product label provide the hazard information, first aid, handling and storage requirements for a chemical. Workers must consult these before using the substance.

Question 17Construction industry induction and workplace safety

What is the main purpose of a site emergency assembly area?

  1. To provide a place where workers can be accounted for after evacuation Correct answer.
  2. To store building materials during the project
  3. To serve as a lunchroom for the crew
  4. To park site vehicles overnight

Explanation

The assembly area is a designated safe location where workers gather so they can be counted and accounted for after an evacuation. This confirms everyone is safe and helps emergency services.

Question 18Construction industry induction and workplace safety

A young, inexperienced worker is assigned to operate a hazardous item of plant. What should happen before they operate it?

  1. They should be given documented training, supervision and confirmation of competency Correct answer.
  2. They should be left to learn by trial and error
  3. They should sign a waiver accepting the risk
  4. They should only operate it when no supervisor is present

Explanation

Inexperienced workers must receive adequate training, supervision and confirmation of competency before operating hazardous plant. Trial and error or waivers do not satisfy this duty.

Question 19Construction industry induction and workplace safety

Which of these best describes a 'near miss' on a construction site?

  1. An incident where someone was injured and needed hospital treatment
  2. A scheduled safety inspection that found no problems
  3. An unplanned event that did not cause injury but had the potential to Correct answer.
  4. A breakdown in a piece of construction plant

Explanation

A near miss is an unplanned event that did not result in injury or damage but had the potential to do so. Reporting near misses helps identify hazards before a serious incident occurs.

Question 20Construction industry induction and workplace safety

What is the key requirement for a worker to safely use a fall-arrest harness at height?

  1. It can be tied to any nearby pipe or railing
  2. It only needs to be worn loosely around the waist
  3. It can be used without inspection if it looks new
  4. It must be anchored to a suitable anchor point and the worker trained in its use Correct answer.

Explanation

A fall-arrest harness is effective only when connected to a suitable, rated anchor point and used by a trained worker. Harnesses must also be inspected before use.

Question 21Construction industry induction and workplace safety

A worker is exposed to high noise from a concrete saw for a full shift. Which control is most appropriate according to the hierarchy?

  1. Provide a warning sign near the saw
  2. Rely solely on earplugs for the entire shift
  3. Use engineering controls such as a quieter saw or acoustic enclosure where practicable Correct answer.
  4. Rotate workers so each is exposed for shorter periods only

Explanation

Engineering controls that reduce noise at the source rank higher than administrative measures or PPE in the hierarchy. They protect all workers without relying on individual behaviour.

Question 22Construction industry induction and workplace safety

Why must workers be consulted when safety controls are being planned for a task?

  1. Because it is only needed to improve productivity
  2. Because workers doing the task often understand the practical hazards and can suggest workable controls Correct answer.
  3. Because it transfers responsibility for safety to the workers
  4. Because consultation removes the employer's legal duties

Explanation

Workers who perform a task have practical knowledge of the hazards and can help design controls that work in practice. Consultation supports, but does not transfer, the employer's safety duties.

Question 23Construction industry induction and workplace safety

A worker is asked to enter a trench deeper than 1.5 metres with unsupported walls and no shoring. What is the correct response?

  1. Enter after checking that the soil looks firm
  2. Enter only if the task will take less than ten minutes
  3. Enter but keep one hand on the ladder at all times
  4. Do not enter until an appropriate shoring or benching system is in place Correct answer.

Explanation

Trenches deep enough to bury a worker require shoring, benching or another suitable collapse-prevention system before entry. Firm-looking soil and short duration do not remove the risk of collapse.

Question 24Construction industry induction and workplace safety

Which of the following is the most reliable way to confirm that a worker understands site emergency procedures?

  1. Assuming they know because they have worked on other sites
  2. Asking them to sign the induction form only
  3. Giving them a written procedure to read later
  4. Having them explain and demonstrate the evacuation route and assembly point Correct answer.

Explanation

Understanding is best confirmed when a worker can explain and demonstrate the correct actions, such as the route and assembly point. A signature or assumption does not prove comprehension.

Question 25Construction industry induction and workplace safety

What is the purpose of a tag-out or lock-out system on construction plant?

  1. To show the delivery date of the equipment
  2. To record which worker is entitled to a pay bonus
  3. To prevent plant from being energised or operated while it is being repaired or maintained Correct answer.
  4. To mark equipment that is ready for immediate use

Explanation

Lock-out and tag-out isolate energy sources and prevent plant from being started while maintenance or repair is underway. This protects workers from unexpected energisation.

Question 26Construction industry induction and workplace safety

On a construction site, what is the main purpose of a site induction?

  1. To introduce workers to the site's specific hazards, rules and emergency arrangements before they start work Correct answer.
  2. To assess each worker's trade skills and productivity before they are assigned tasks
  3. To allow workers to choose which tasks they would prefer to perform during the project
  4. To provide workers with their tax file number and payroll information for the project

Explanation

A site induction is a mandatory safety briefing that must occur before a worker starts on a new site. It covers site-specific hazards, site rules, emergency procedures and the location of first aid and amenities. Its purpose is to ensure every worker understands how to work safely in that particular environment.

Question 27Construction industry induction and workplace safety

What should a worker do if they are unsure how to perform a task safely?

  1. Proceed carefully and ask a workmate later if a problem arises
  2. Record the concern in a notebook and raise it at the next toolbox talk
  3. Stop and seek clarification from their supervisor before continuing Correct answer.
  4. Continue the task but work more slowly to reduce the risk

Explanation

Workers have a duty to stop work if they are unsure how to do it safely and to consult their supervisor. Guessing or continuing without clarity can lead to incidents. Clarifying before proceeding ensures the task is done with the correct controls in place.

Question 28Construction industry induction and workplace safety

What is the primary purpose of wearing high-visibility clothing on a construction site?

  1. To identify which company employs the worker on site
  2. To protect the worker's skin from sunburn during outdoor work
  3. To make the worker more visible to plant operators and other workers Correct answer.
  4. To keep the worker warm in cold weather conditions

Explanation

High-visibility clothing is a personal protective measure that makes workers easier to see, especially around moving plant and vehicles. Being seen allows operators and workmates to detect the worker early and avoid collisions. It does not provide thermal, sun protection or identification functions.

Question 29Construction industry induction and workplace safety

A worker is about to start a task when they notice that a guard has been removed from a concrete mixer. What is the most appropriate action?

  1. Ask a workmate to watch the moving parts while the mixer is used
  2. Place a warning sign on the mixer and continue using it
  3. Operate the mixer carefully, keeping hands clear of the moving parts
  4. Stop using the mixer and report the missing guard so it can be replaced Correct answer.

Explanation

A missing guard exposes workers to entanglement and crushing hazards, so the equipment must not be used until it is made safe. The worker should stop the task and report the defect to the supervisor so the guard can be refitted or the plant isolated. Warning signs or observers do not provide adequate protection.

Question 30Construction industry induction and workplace safety

According to the hierarchy of control, which measure is the highest level of control for a hazardous task?

  1. Displaying warning signs around the hazard
  2. Providing personal protective equipment to workers
  3. Training workers in safe work procedures
  4. Eliminating the hazard from the workplace Correct answer.

Explanation

The hierarchy of control ranks measures from most to least effective. Elimination removes the hazard entirely and is therefore the most reliable control. Administrative measures and personal protective equipment sit lower in the hierarchy because they rely on human behaviour and do not remove the hazard.

Question 31Construction industry induction and workplace safety

A worker receives a written procedure for a task but does not understand one of the steps. What should they do?

  1. Sign the procedure to confirm they have read it and start work
  2. Ask a workmate to demonstrate the step without telling the supervisor
  3. Skip that step and complete the rest of the procedure
  4. Ask their supervisor to explain the step before starting the task Correct answer.

Explanation

Workers must fully understand a procedure before starting work. Asking the supervisor to explain an unclear step ensures the task is performed correctly and safely. Signing off or skipping steps without understanding them breaches the procedure and creates risk.

Question 32Construction industry induction and workplace safety

What is the main purpose of a site-specific safety management plan?

  1. To schedule the delivery of materials to the site
  2. To list the names of all subcontractors working on the project
  3. To set out how safety risks on the project will be managed and controlled Correct answer.
  4. To record the wages and entitlements of workers on the project

Explanation

A safety management plan documents the arrangements for managing work health and safety on a project. It identifies hazards, sets out control measures, and describes emergency and consultation processes. It is not a financial or scheduling document.

Question 33Construction industry induction and workplace safety

A worker is required to wear a safety helmet on site. Which statement best describes the correct use of the helmet?

  1. The helmet can be left unfastened as long as it sits firmly on the head
  2. The helmet should be worn with the chin strap fastened and the brim facing forward Correct answer.
  3. The helmet may be worn backwards if it feels more comfortable
  4. The helmet should be worn only when the supervisor is present

Explanation

A safety helmet must be worn correctly to provide the intended protection. This means the brim facing forward and the chin strap fastened so the helmet stays in place during a fall or impact. Wearing it backwards or unfastened reduces its effectiveness.

Question 34Construction industry induction and workplace safety

A worker is exposed to high noise from a concrete saw for a full shift. Which control is most appropriate according to the hierarchy of control?

  1. Use a quieter saw or enclose the noise source to reduce noise at its source Correct answer.
  2. Place a warning sign indicating a noisy area
  3. Provide hearing protection and rely on workers to wear it
  4. Rotate workers so each person spends less time near the saw

Explanation

The hierarchy of control prioritises measures that remove or reduce the hazard at its source. Engineering controls such as using quieter equipment or enclosing the noise source reduce noise exposure for everyone. Personal protective equipment and administrative measures are lower-order controls.

Question 35Construction industry induction and workplace safety

Which of the following best describes a 'near miss' on a construction site?

  1. A minor injury that required only first aid treatment
  2. A planned safety inspection that found no hazards
  3. An incident that resulted in a serious injury requiring hospital treatment
  4. An event that could have caused injury or damage but did not Correct answer.

Explanation

A near miss is an unplanned event that did not result in injury or damage but had the potential to do so. Reporting near misses allows hazards to be identified and controlled before a serious incident occurs. It is distinct from an injury or a routine inspection.

Question 36Construction industry induction and workplace safety

Under work health and safety law, what is the primary duty of a person conducting a business or undertaking (PCBU) on a construction site?

  1. Maximise daily output regardless of the risks involved
  2. Delegate all safety responsibilities to the youngest worker on site
  3. Ensure the health and safety of workers and others affected by the work, so far as is reasonably practicable Correct answer.
  4. Provide free lunch and transport for all site workers

Explanation

The primary duty of a PCBU is to ensure health and safety so far as is reasonably practicable, which means weighing the likelihood and severity of harm against what is reasonably able to be done to control it. This duty extends beyond direct employees to contractors, visitors and the public who may be affected by the work.

Question 37Construction industry induction and workplace safety

A worker notices a damaged electrical lead on a power tool. Which action best reflects the correct safety response?

  1. Tag the tool out of service, disconnect it and report the defect to the supervisor Correct answer.
  2. Leave the tool where it is and start using a different one without reporting
  3. Wrap the damaged section in tape and continue using the tool
  4. Swap the lead with another tool and keep working

Explanation

Damaged electrical leads create a risk of electric shock and must be taken out of service immediately. Tagging out and disconnecting the tool prevents others from using it, and reporting the defect ensures it is repaired or replaced by a competent person.

Question 38Construction industry induction and workplace safety

A worker must manually lift heavy timber repeatedly during a shift. Which approach best applies the hierarchy of control to reduce the risk of musculoskeletal injury?

  1. Issue back belts and rely on them to prevent injury
  2. Use a mechanical lifter or team lift to eliminate or reduce the manual handling Correct answer.
  3. Provide training on lifting technique as the only control
  4. Rotate workers so each person lifts for shorter periods only

Explanation

The hierarchy of control ranks eliminating or engineering out the hazard above administrative measures. Using a mechanical aid or sharing the load reduces the physical demand at its source, which is more reliable than relying on technique or personal equipment.

Question 39Construction industry induction and workplace safety

A worker is directed to work alone in a remote part of the site where mobile phone coverage is unreliable. What is the most appropriate control before work begins?

  1. Rely on the worker to call for help if something goes wrong
  2. Allow the work only if the worker promises to be careful
  3. Give the worker a whistle and no other arrangements
  4. Establish a check-in schedule and a reliable means of communication and rescue Correct answer.

Explanation

Lone work increases risk because no one is nearby to raise an alarm or assist. A safe system requires planned communication, regular check-ins and a workable emergency response so that help can be summoned and reach the worker promptly.

Question 40Construction industry induction and workplace safety

A site has a powered mobile plant operating in the same area where pedestrian workers are moving materials. Which control arrangement most effectively manages the interaction between plant and pedestrians?

  1. Require operators to sound the horn whenever they move
  2. Physically separate plant and pedestrian routes with barriers and defined crossing points Correct answer.
  3. Place signs warning pedestrians that plant is operating
  4. Instruct pedestrians to make eye contact with operators before crossing

Explanation

Separation of plant and people removes the chance of collision at its source and is an engineering control high in the hierarchy. Signs, horns and eye contact all depend on human behaviour and attention, so they are less reliable than physical segregation.

Question 41Plans, specifications and quality requirements

On a building project, what is the main purpose of the specification document when read alongside the drawings?

  1. To replace the drawings once construction has started on site
  2. To list the names of subcontractors working on the project
  3. To describe the quality of materials and workmanship that the drawings cannot show Correct answer.
  4. To record the contract price agreed between the parties

Explanation

Drawings show the location, size and arrangement of building elements, while the specification states the required quality, standards, materials and workmanship. The two documents are read together because neither is complete on its own. Specifications do not set the contract sum or replace drawings.

Question 42Plans, specifications and quality requirements

A plan is drawn at a scale of 1:100. A wall measures 45 mm on the drawing. What is its real length?

  1. 45 m
  2. 0.45 m
  3. 4.5 m Correct answer.
  4. 450 mm

Explanation

At 1:100, one unit on the drawing represents 100 of the same units in reality. So 45 mm on the drawing equals 45 x 100 = 4500 mm, which is 4.5 m. Converting millimetres to metres requires dividing by 1000.

Question 43Plans, specifications and quality requirements

In architectural drafting, what does a plan view show?

  1. The structural connections inside a concrete slab
  2. The building as seen from the front elevation
  3. A three-dimensional perspective of the finished building
  4. The building as seen from directly above after a horizontal cut Correct answer.

Explanation

A plan is a horizontal section taken at a nominated height and viewed from above, showing walls, openings and room layouts. Elevations show the external faces of the building. Plans do not show internal slab reinforcement, which belongs on structural details.

Question 44Plans, specifications and quality requirements

What is the purpose of a datum point or datum line on a construction drawing?

  1. To indicate the direction of north on the plan
  2. To provide a fixed reference level from which heights are measured Correct answer.
  3. To show where services enter the building
  4. To mark the boundary of the site for survey purposes

Explanation

A datum is a fixed, known reference level, often related to a survey mark or an assumed level, from which all reduced levels and heights on the drawings are measured. Using one datum prevents cumulative errors between trades. Site boundaries, north points and service entries are shown by other symbols.

Question 45Plans, specifications and quality requirements

Which document would a builder consult to confirm the required compressive strength grade of concrete for a suspended slab?

  1. The safety data sheet for cement
  2. The site diary
  3. The structural drawings and specification Correct answer.
  4. The progress payment schedule

Explanation

Concrete strength grades are nominated by the structural engineer on the structural drawings and in the specification. These documents form part of the contract documents and govern what must be supplied. A site diary, safety data sheet or payment schedule does not prescribe design strength.

Question 46Plans, specifications and quality requirements

A drawing carries the note 'NTS'. What does this mean?

  1. North to site
  2. Nominal thickness specified
  3. New timber stud
  4. Not to scale Correct answer.

Explanation

NTS stands for not to scale, warning readers that dimensions must not be scaled from the drawing. Reliance must instead be placed on the written dimensions. Scaled measurement of an NTS drawing can produce serious errors.

Question 47Plans, specifications and quality requirements

What is the primary purpose of a quality control inspection and test plan (ITP) on a construction project?

  1. To record the hours worked by each trade
  2. To schedule the delivery of materials to site
  3. To calculate the final contract sum
  4. To define the hold points, inspections and tests required at each stage Correct answer.

Explanation

An inspection and test plan identifies the activities requiring inspection or testing, the acceptance criteria, who signs off, and the hold points where work cannot proceed until approval. It is a quality tool, not a cost or payroll record. Material delivery scheduling is a separate program function.

Question 48Plans, specifications and quality requirements

A dimension on a drawing is written as 2400. In Australian construction drawings, what unit is normally used for such dimensions?

  1. Centimetres
  2. Millimetres Correct answer.
  3. Inches
  4. Metres

Explanation

Australian construction drawings conventionally show dimensions in millimetres, so 2400 means 2400 mm or 2.4 m. This convention avoids decimal points and reduces reading errors. Metres and inches are not the standard convention.

Question 49Plans, specifications and quality requirements

A builder finds a discrepancy between a written dimension on a plan and a scaled measurement taken with a rule. Which should be followed?

  1. Neither; work should stop until the drawing is redrawn
  2. The larger of the two values, to be safe
  3. The written dimension, because figures govern over scaled measurement Correct answer.
  4. The scaled measurement, because it reflects the drawing accurately

Explanation

The general rule is that figured dimensions take precedence over scaled measurements, because drawings may be reproduced or distorted. If a conflict is significant, the builder should raise a request for information before proceeding. Choosing the larger value is not a recognised rule.

Question 50Plans, specifications and quality requirements

What is the purpose of a request for information (RFI) during construction?

  1. To formally seek clarification of ambiguous or conflicting documents Correct answer.
  2. To order additional materials from a supplier
  3. To notify the regulator of a safety incident
  4. To claim an extension of time for delays

Explanation

An RFI is a formal written query used to resolve ambiguity, conflicts or missing information in the contract documents, and the response becomes part of the project record. It is not a purchasing, claims or incident notification tool. Using RFIs keeps decisions documented and traceable.