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Quizzes > Business & Finance > Business & Industry

Occupational Health and Safety Quiz: Test Your Knowledge

Think you know safety test answers? Start the OHS quiz now!

Editorial: Review CompletedCreated By: Dongling ChenUpdated Aug 24, 2025
Difficulty: Moderate
2-5mins
Learning OutcomesCheat Sheet
Paper cutout scene showing quiz page checklist pencil safety helmet gloves and hazard sign on dark blue background

This safety quiz questions and answers PDF helps you practice OHS essentials and find gaps before a test or audit. Work through real-world scenarios, review correct answers, and build safer habits fast. Prefer instant feedback? Try the quick practice quiz , or go deeper with the OSHA training quiz .

What does PPE stand for?
Potential Protective Enclosure
Professional Personal Equipment
Personal Precautionary Equipment
Personal Protective Equipment
PPE stands for Personal Protective Equipment, which includes items like gloves, helmets, and eye protection designed to safeguard workers from hazards on the job. Proper selection and use of PPE is a fundamental aspect of workplace safety programs. Employers are responsible for providing appropriate PPE whenever hazards cannot be eliminated or controlled by other means.
On safety signs, which color is used to indicate caution?
Blue
Red
Yellow
Green
Yellow is the standard color used on safety signs to indicate caution and alert people to potential hazards. This color coding follows guidelines in OSHA 1910.145 for safety signage. Using consistent color coding helps workers quickly recognize the level of hazard.
What is the first step in a hazard assessment?
Identify hazards
Assess the risk
Implement controls
Monitor controls
The initial step in a hazard assessment is to identify potential hazards in the workplace. Once hazards are identified, the risks can be analyzed, and appropriate controls can be implemented. Effective hazard identification often involves walkthroughs, employee interviews, and reviewing incident records.
Which type of fire extinguisher should be used on an electrical fire?
Foam extinguisher
Carbon Dioxide extinguisher
Water extinguisher
Wet chemical extinguisher
Carbon Dioxide (CO2) extinguishers are recommended for electrical fires because they displace oxygen without leaving conductive residue. Water-based extinguishers are dangerous on electrical fires due to the risk of electrical shock. CO2 extinguishers also cool the fire and provide a rapid extinguishing action.
Which class of fire involves flammable liquids?
Class C
Class A
Class B
Class D
Class B fires are those involving flammable liquids such as gasoline, oil, and solvents. Class A covers ordinary combustibles, Class C covers electrical fires, and Class D covers combustible metals. Knowing the fire class is essential for selecting the correct extinguisher.
Which safety pictogram indicates corrosive materials?
Corrosion pictogram
Gas cylinder
Skull and Crossbones
Flame over circle
The corrosion pictogram, showing test tubes pouring liquid onto a surface and a hand, identifies substances that cause skin corrosion or eye damage. This symbol is part of the GHS hazard communication standard. Proper labeling ensures that workers handle corrosive chemicals safely.
What is the safest way to lift heavy objects?
Lift as quickly as possible
Bend your knees and keep your back straight
Keep your legs straight and bend at the waist
Twist your torso while lifting
Bending your knees and keeping your back straight helps maintain the natural curve of the spine and reduces the risk of back injury. This technique engages your leg muscles rather than your lower back. Avoid twisting the torso or lifting with a rounded back.
When should you wash your hands to maintain workplace hygiene?
After handling hazardous materials
Only after using the restroom
Only before eating
Before eating, after using the restroom, and after handling hazardous materials
Proper handwashing before eating, after restroom use, and after handling hazardous materials helps prevent the spread of contaminants and illnesses. This practice is a key component of workplace hygiene and health protocols. Use soap and clean water, scrubbing for at least 20 seconds.
What is the primary purpose of lockout-tagout procedures?
Schedule routine maintenance
Prevent accidental machine startup during maintenance
Enhance machine productivity
Control inventory of tools
Lockout-tagout procedures are designed to isolate energy sources and prevent machines from starting up unexpectedly during maintenance or repair. This reduces the risk of injury or death from moving parts or stored energy. OSHA's standard 1910.147 outlines requirements for these procedures.
Which of the following is NOT part of the hierarchy of controls?
Elimination
Supervision
Personal Protective Equipment
Engineering Controls
The hierarchy of controls includes elimination, substitution, engineering controls, administrative controls, and PPE. Supervision alone is not a recognized level in this hierarchy. Prioritizing higher-level controls like elimination and engineering is more effective.
At what decibel level is hearing protection generally required in the workplace?
120 dB
70 dB
100 dB
85 dB
OSHA requires employers to provide hearing protection when workers are exposed to noise levels at or above 85 decibels over an 8-hour time-weighted average. Prolonged exposure above this level can cause permanent hearing loss. Regular noise monitoring and hearing conservation programs are essential.
During a fire evacuation, if your path is blocked by smoke, what should you do?
Open all windows
Stay low and crawl
Use the elevator
Stand up and walk through it
Smoke rises during a fire, making the air near the floor cleaner and cooler. Staying low and crawling can help you avoid inhaling toxic smoke and maintain visibility. Elevators should never be used in a fire evacuation. Follow your workplace's evacuation plan.
Safety Data Sheets (SDS) replaced which older hazard communication document?
Material Safety Data Sheet
Safety Data Standard
Significant Danger Summary
Safety Data Sheet
Under the Globally Harmonized System (GHS), Material Safety Data Sheets (MSDS) were replaced with Safety Data Sheets (SDS) to standardize format and improve clarity. The SDS contains detailed information on chemical hazards, handling, storage, and emergency measures. OSHA's HazCom standard enforces this requirement.
Which type of hazard is classified as ergonomic?
Radiation hazards
Biological hazards
Chemical hazards
Musculoskeletal hazards
Ergonomic hazards are workplace conditions that pose risks to the musculoskeletal system, such as repetitive motions, awkward postures, and forceful exertions. These hazards can lead to strains, sprains, and cumulative trauma disorders. Ergonomic assessments help identify and mitigate these risks.
In risk assessment, what does the 'likelihood' of an event describe?
The cost of potential damages
Compliance with regulations
The probability of occurrence
The number of hazards
In risk assessment, likelihood refers to the probability that a hazardous event will occur. Coupled with severity, it helps determine the overall risk level. Accurate estimation of likelihood often relies on historical data and expert judgment.
What is the main purpose of an incident investigation?
Identify root causes to prevent recurrence
Assign blame to workers
Calculate financial loss
Improve equipment performance
The primary goal of incident investigation is to uncover root causes and contributing factors in order to implement corrective actions and prevent similar incidents. Focusing on systemic issues rather than individual blame fosters a culture of safety. Thorough investigations also improve hazard controls.
What is the minimum clearance distance required between a crane's load and overhead power lines?
5 feet
10 feet
15 feet
20 feet
OSHA requires a minimum clearance of 10 feet between cranes (and their loads) and overhead power lines up to 50 kV. This distance increases for higher voltages. Maintaining the proper clearance reduces the risk of electrocution.
Which organization publishes the NFPA 70E standard for electrical safety in the workplace?
International Electrotechnical Commission (IEC)
Occupational Safety and Health Administration (OSHA)
National Fire Protection Association (NFPA)
American National Standards Institute (ANSI)
The National Fire Protection Association (NFPA) publishes NFPA 70E, which covers electrical safety practices and requirements for employees. NFPA 70E complements OSHA standards by detailing safe work practices to prevent electrical injuries. It is widely adopted by safety professionals.
A half-mask air-purifying respirator is generally suitable for exposure levels up to how many times the permissible exposure limit (PEL)?
5 times the PEL
50 times the PEL
100 times the PEL
10 times the PEL
Half-mask air-purifying respirators are typically rated for use up to 10 times the OSHA permissible exposure limit (PEL) of certain contaminants. Beyond that level, a more protective respirator, such as a full facepiece or supplied-air respirator, is required. Always consult the respirator's approval data.
What is a key requirement of a confined space entry permit?
Identification of hazards and rescue procedures
General site safety plan
List of all tools on site
Daily work schedule
A confined space entry permit must document identified hazards, air monitoring results, required PPE, and emergency rescue procedures before entry. This ensures that all entrants and supervisors are aware of risks and prepared for emergencies. Compliance with OSHA's Permit-Required Confined Space standard prevents fatalities.
Which statement best describes lockout in lockout-tagout procedures?
Tagging equipment with a warning label
Disconnecting power without a lock
Securing energy isolation devices in the off position with a lock
Isolating the work area with barriers
Lockout involves placing a lock on energy-isolating devices (such as valves or breakers) to ensure they remain in the off or safe position. Tagout involves attaching a warning tag. Both are used together to prevent unexpected machine startup during maintenance.
Which OSHA form is used to log work-related injuries and illnesses?
Form 300
Form 300A
Form 301
Form 302
OSHA Form 300, also known as the Log of Work-Related Injuries and Illnesses, is used to record and classify work-related injuries and illnesses. Form 301 is the Incident Report, and Form 300A is the Summary. Accurate recordkeeping helps identify trends and prevent future incidents.
What is the primary limitation of administrative controls?
They rely heavily on human behavior
They are generally too expensive
They require complex engineering
They are not recognized by regulators
Administrative controls reduce risk by changing how people work, such as through training, schedules, and procedures. Their effectiveness depends on consistent human compliance, making them less reliable than engineering controls. Employers often combine administrative measures with higher-level controls.
In noise control, what does an A-weighted decibel (dB(A)) rating represent?
Weighted sound level approximating human hearing sensitivity
Average frequency of noise exposure
Peak sound level of instantaneous noise
Unweighted sound pressure level
A-weighted decibel ratings adjust sound measurements to reflect the sensitivity of the human ear, de-emphasizing very low and high frequencies. This metric is widely used in occupational noise assessments. Exposure limits are based on dB(A) measurements.
According to ISO 45001, which clause requires top management to demonstrate leadership and commitment?
Clause 4.1
Clause 7.1
Clause 5.1
Clause 6.1
ISO 45001 Clause 5.1 specifies that top management must demonstrate leadership and commitment by integrating the OH&S management system requirements into the organization's business processes. This ensures accountability and continual improvement of health and safety performance.
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Study Outcomes

  1. Understand OHS Fundamentals -

    Develop a clear grasp of core occupational health and safety principles and regulations as presented in the safety quiz questions and answers PDF.

  2. Identify Workplace Hazards -

    Analyze real-world scenarios to pinpoint common safety risks and apply safety test answers to recognize hazards before they escalate.

  3. Apply Safety Rules -

    Use knowledge from the workplace safety quiz to implement best practices and ensure compliance with established safety procedures.

  4. Reinforce Key Concepts -

    Review detailed explanations after each OHS quiz question to solidify your understanding of critical safety rules and guidelines.

  5. Evaluate Your Proficiency -

    Measure and track your OHS skills with a scored quiz format, helping you identify strengths and areas for improvement.

Cheat Sheet

  1. Hazard Identification and Risk Assessment -

    Understanding how to identify workplace hazards and evaluate their risk level is fundamental for any safety quiz questions and answers PDF. Use a simple risk matrix plotting likelihood against severity (e.g., a 5×5 grid) to prioritize controls; remember "High Likelihood, High Severity = Immediate Action." Sources such as OSHA and ISO 45001 guidelines back this systematic approach.

  2. Hierarchy of Controls -

    Memorize the five-tier hierarchy - Elimination, Substitution, Engineering Controls, Administrative Controls, and PPE - using the mnemonic "Every Silly Engineer Avoids PPE" to boost recall during an occupational health and safety quiz. Emphasizing higher-level controls first ensures more effective risk mitigation than relying on personal protective equipment alone. Both OSHA and NIOSH endorse this structure as best practice.

  3. Emergency Response and Evacuation Procedures -

    Familiarize yourself with the PASS technique for fire extinguishers - Pull, Aim, Squeeze, Sweep - and always know your building's evacuation routes and muster points before an incident occurs. Regular drills supported by guidance from the National Fire Protection Association (NFPA) reinforce muscle memory when time is critical. This core topic shows up often in a workplace safety quiz.

  4. Lockout/Tagout (LOTO) Protocols -

    Master the lockout/tagout sequence - Notify, Shutdown, Isolate, Lock & Tag, Verify - so you're prepared for safety test answers around energy control procedures. Proper LOTO compliance prevents unexpected machine start-up, a leading cause of industrial injuries according to ANSI Z244.1. Practice steps on real equipment under supervision to reinforce learning.

  5. Safety Communication and Reporting -

    Develop a proactive reporting culture by logging near misses and hazards promptly, as mandated by OSHA's recordkeeping standards. Remember the STOP method - Stop, Think, Observe, Plan - for quick on-the-spot hazard checks during OHS quiz questions or in the field. Effective communication is the backbone of any safety rules quiz and ensures continuous improvement.

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