Free National Construction Safety Officer National Exam Practice Questions

Sample Practice Questions

Try these 10 sample questions from the National Construction Safety Officer National Exam practice bank. Each includes the answer and explanation. Continue with the interactive practice above to review the full question set.

1. 1A safety officer starts a JSA for a concrete-sawing task. The job has been selected. What should the team do next?

   1. A.Break the job into a sequence of stepsCorrect answer: A
   2. B.Assign each hazard a numerical risk score
   3. C.Select protective measures for each hazard
   4. D.Communicate the completed work procedure

   Explanation: CCOHS Job Safety Analysis states, "Break the job down into a sequence of steps" The sequence must be established before identifying step-specific hazards, selecting controls or communicating the finished procedure.

   Reference: CCOHS Job Safety Analysis — What are the basic steps?

2. 2After an incident scene is made safe, which evidence should the officer normally record first because it can rapidly change?

   1. A.Physical evidenceCorrect answer: A
   2. B.Training certificates
   3. C.Committee minutes
   4. D.Program policies

   Explanation: For physical evidence, CCOHS states, "It is also subject to rapid change or obliteration; therefore, it should be the first to be recorded." The scene is made safe first; physical conditions should then be documented before they change.

   Reference: CCOHS Incident Investigation — Physical Evidence

3. 3An officer reviews a policy endorsed by an employee committee but unsigned by current top management. Who should sign it under CCOHS guidance?

   1. A.Current President or Chief Executive OfficerCorrect answer: A
   2. B.The company's health and safety coordinator
   3. C.The worker co-chair of the joint safety committee
   4. D.The supervisor responsible for the affected work area

   Explanation: CCOHS states, "Signed by the current President or Chief Executive Officer." Top-management endorsement is distinct from committee participation.

   Reference: CCOHS Health and Safety Program — General Elements — What is a policy statement?

4. 4An officer assists with COR audit observations. What should observations verify?

   1. A.Actual practice against documented and interview evidenceCorrect answer: A
   2. B.Employee recall of the company's written procedures
   3. C.The written content of the company's safety procedures
   4. D.The results recorded on completed safety checklists

   Explanation: The IHSA COR 2020 Audit Handbook states, "verify the information gathered during the documentation review and the interviews" Observation checks whether the system is implemented in the workplace, beyond written claims.

   Reference: IHSA COR 2020 Audit Handbook — p.18, Observations

5. 5A worker transfers to a different job with unfamiliar hazards. When should job-specific orientation begin under CCOHS guidance?

   1. A.When the worker transfers to the new jobCorrect answer: A
   2. B.At the next scheduled refresher session
   3. C.At the next annual performance review
   4. D.At the next annual safety-program audit

   Explanation: CCOHS General Program Elements states, "is transferred to a new job" Orientation applies to job transfers as well as new hires.

   Reference: CCOHS General Program Elements — Why is worker orientation important?

6. 6An operator checks a machine before starting the shift. What type of inspection is this?

   1. A.Periodic inspection
   2. B.Pre-operation checkCorrect answer: B
   3. C.External audit
   4. D.Pre-start engineering review

   Explanation: CCOHS states, "before they begin to use the machine" This is the user's pre-operation equipment check, not a program audit or engineered review.

   Reference: CCOHS Effective Workplace Inspections — Are there other types of reports that may be useful?

7. 7A liquid product can intensify a fire through its oxidizing action. Which hazard class best describes that property?

   1. A.Oxidizing liquidsCorrect answer: A
   2. B.Pyrophoric liquids
   3. C.Self-heating substances and mixtures
   4. D.Corrosive to metals

   Explanation: CCOHS WHMIS Hazard Classes and Categories states, "may cause or intensify a fire" Oxidizers promote combustion; spontaneous ignition and corrosion describe other hazards.

   Reference: CCOHS WHMIS Hazard Classes and Categories — What are the main concerns for each physical hazard class?

8. 8Safety glasses and earmuffs meet their individual specifications. Which issue specifically concerns compatibility when both are worn together?

   1. A.Whether the glasses interfere with the earmuff sealCorrect answer: A
   2. B.Whether the two devices have separate fitting instructions
   3. C.Whether the devices carry separate compliance markings
   4. D.Whether each device has its own inspection record

   Explanation: CCOHS Designing an Effective PPE Program states, "will wearing eyewear interfere with the seal provided by ear muffs?" Combined PPE must remain effective when worn together, including preserving the hearing protector's seal.

   Reference: CCOHS Designing an Effective PPE Program — What steps are involved in the selection of personal protective equipment (PPE)? — d) Consider physical comfort of PPE (ergonomics)

9. 9An evacuation drill reveals confusion over the assembly location. What should the officer coordinate after the drill?

   1. A.Prompt review of the drill and revision of the identified shortcomingCorrect answer: A
   2. B.Carry the assembly issue forward to the next scheduled annual review
   3. C.Repeat the same plan at another drill before evaluating the issue
   4. D.Change the all-clear signal to distinguish it from the evacuation alarm

   Explanation: CCOHS Emergency Planning states, "A thorough and immediate review after each exercise" Drills test the plan and reveal improvements; discovered weaknesses should inform revision.

   Reference: CCOHS Emergency Planning — Testing and Revision

10. 10A night-shift crew routinely unloads materials under artificial lighting. When should the officer observe the job for its JSA?

    1. A.During a daylight trial with the regular equipment
    2. B.During a night shift with the regular equipmentCorrect answer: B
    3. C.During a daylight trial with substitute equipment
    4. D.During a night shift with substitute equipment

    Explanation: CCOHS Job Safety Analysis states, "the job safety analysis should also be done at night" Observing the normal shift and equipment captures the actual conditions rather than those of a modified demonstration.

    Reference: CCOHS Job Safety Analysis — How do I break the job into basic steps?