Certification Practice Exam Questions

OSHA 30-Hour Construction Safety Certification Practice Exam Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

Q1. What is the primary purpose of OSHA?

• To train construction workers
• To ensure safe and healthful working conditions
• To inspect only large companies
• To provide insurance for workers

Rationale: OSHA’s main goal is to assure safe and healthful working

conditions by setting and enforcing standards._ Q2. What does PPE stand for?

• Professional Protection Equipment
• Personal Protective Equipment
• Physical Protection Essentials 1 / 4

• Personal Protective Environment

Rationale: PPE means Personal Protective Equipment such as gloves,

helmets, and safety glasses._

Q3. The OSHA Act of 1970 applies to:

• Federal employees only
• State employees only
• Most private sector employers and employees
• Self-employed individuals

Rationale: The Act covers most private-sector workplaces except the self-

employed and immediate family of farm employers._

Q4. The General Duty Clause requires employers to:

• Provide a workplace free from recognized hazards
• File annual safety reports
• Provide safety bonuses
• Hire safety officers

Rationale: Section 5(a)(1) of the OSH Act states employers must keep

workplaces free of recognized hazards likely to cause death or serious harm._

Q5. OSHA requires recordkeeping for employers with:

• 5 or fewer employees
• Temporary workers only
• 11 or more employees
• Federal contracts only 2 / 4

Rationale: Employers with 11 or more employees must keep OSHA injury

and illness records unless exempted._ Q6. What OSHA form is used to log work-related injuries and illnesses?

• Form 301
• Form 300A
• Form 300
• Form 302

Rationale: Form 300 is the log of work-related injuries and illnesses

maintained by employers._ Q7. What is the permissible exposure limit (PEL) for noise over 8 hours?

• 95 dBA
• 90 dBA
• 100 dBA
• 85 dBA

Rationale: OSHA sets the PEL for noise at 90 decibels averaged over 8

hours._ Q8. What type of hazard is most common in construction?

• Chemical
• Falls
• Biological
• Radiation

Rationale: Falls are the leading cause of fatalities in construction._ 3 / 4

Q9. What must be provided when workers are exposed to falls of 6 feet or more?

• Hard hats
• Safety boots
• Fall protection systems
• Ear protection

Rationale: OSHA requires fall protection for workers at heights of 6 feet or

more._

Q10. Guardrails must be able to withstand at least:

• 100 pounds
• 200 pounds
• 150 pounds
• 250 pounds

Rationale: Guardrails must resist a force of at least 200 pounds applied in

any outward or downward direction._ Q11. What is the minimum top rail height for guardrails?

• 36 inches
• 38 inches
• 42 inches
• 48 inches

Rationale: OSHA requires top rails to be 42 inches high, plus or minus 3

inches._

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