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Occupational Health and Safety Technician (OHST) Practice Test

79 questions available

The Occupational Health and Safety Technician (OHST) Practice Test is a comprehensive assessment tool designed for safety professionals preparing for the Board of Certified Safety Professionals (BCSP) OHST certification exam. This practice test covers three core domains: Industrial Hygiene Fundamentals, Occupational Hazard Recognition, and Safety Management. Industrial Hygiene Fundamentals addresses the anticipation, recognition, evaluation, and control of workplace health hazards, including chemical, physical, biological, and ergonomic stressors. Occupational Hazard Recognition focuses on identifying unsafe conditions and behaviors across various work environments, from construction sites to manufacturing floors. Safety Management covers program development, risk assessment, training, regulatory compliance (OSHA, ANSI, NFPA), and incident investigation. This test is ideal for safety technicians, coordinators, and specialists who have at least two years of experience and seek to validate their technical knowledge. By completing this 79-question practice exam, candidates will gain a clear understanding of their strengths and weaknesses, improve their test-taking stamina, and build confidence in applying safety principles to real-world scenarios. The content mirrors the actual OHST exam's format and difficulty, providing a reliable benchmark for readiness.

Certification exam
200 Exam questions
6 hours Time Limit
Practice bank
79 Practice Questions
1 hour 19 minutes Practice Time
Start Practice
The bar to clear 460 Official passing score. Aim higher in practice before you book.
Official objectives from ASSP
ASSP79 practice questions55 answers with a checkable referenceBlueprint 1.0Bank updated 2026-07-09

Sample Questions

Try a few questions to see what the full exam is like.

55 of 79 answers carry a checkable reference.

Safety Management
Scenario

A safety manager underestimates the labor needed for job rotation and PPE enforcement.

Which answer is accurate?

Occupational Hazard Recognition

A technician is identifying OSHA's entry for bloodborne pathogens. Which choice should the OHST select?

Occupational Hazard Recognition
Scenario

A hazard recognition worksheet includes coke oven emissions.

Which answer is accurate?

Occupational Hazard Recognition
Scenario

An OHST needs a chemical guide that can search by names, synonyms, and trade names.

Which answer is accurate?

Safety Management

A supervisor says hazards should be addressed only after an injury or inspection finding. Which choice should the OHST select?

Why This Certification Opens Doors

This practice test matters because the OHST credential is a recognized standard for safety technicians who directly influence workplace injury and illness rates. Mastery of these topics translates into practical skills: correctly selecting air sampling equipment for a confined space, identifying a missing machine guard before an accident occurs, or implementing a safety management system that reduces lost-time incidents by 30%. Employers rely on OHST-certified professionals to reduce liability, comply with regulations, and protect workers. Every question in this test reflects a decision you might face on the job, making your preparation directly relevant to saving lives and reducing costs.

These are the backgrounds the certifying body suggests. Check the vendor's own page for anything it formally requires.

Exam Blueprint

01Industrial Hygiene Fundamentals
02Occupational Hazard Recognition
03Safety Management

Exam Details OHST | $399 USD | 6 hours

Exam Code OHST
Vendor ASSP
Exam Cost $399 USD
Passing Score 460
Time Limit 6 hours
Exam questions 200
Question TypesMultiple Choice
Retake Policy 30-day waiting period between attempts. Full exam fee required for retake.
Exam Format Linear (computer-based)
Available In
English

Study Resources

BCSP Examination Information Guides
BCSPFree
Official exam content outlines and information guides available on the BCSP website
View

Frequently Asked Questions

How many questions are on the actual OHST exam, and how does this practice test compare?

The actual BCSP OHST exam has 150 multiple-choice questions, with a 4-hour time limit. This practice test contains 79 questions, covering the same three domains in similar proportion. It is designed to simulate the exam's difficulty and content distribution, but it is shorter to allow for focused review. Use it to identify weak areas before taking a full-length simulation.

What score should I aim for on this practice test to feel ready for the real exam?

A score of 75% or higher on this practice test generally indicates readiness, provided you understand why each answer is correct or incorrect. The actual OHST passing score is scaled, but a consistent 75-80% on practice tests correlates well with success. Focus more on learning from mistakes than on the raw percentage.

Are there calculations on the OHST exam, and does this practice test include them?

Yes, the OHST exam includes basic calculations related to noise dose, ventilation, exposure limits, and sampling statistics. This practice test includes similar calculation questions. You should bring a non-programmable calculator to the real exam and be comfortable with unit conversions and formulas.

How much time should I spend on each question during the practice test?

For this 79-question practice test, aim for about 1.5 minutes per question, which gives you roughly 2 hours total. This mirrors the pace of the real exam (150 questions in 4 hours). If a question takes longer, mark it and move on. Time management is a critical skill to practice.

What if I have no experience in industrial hygiene? Can I still pass this practice test?

The OHST exam assumes at least two years of safety experience, including exposure to industrial hygiene concepts. If you lack that background, this practice test will be challenging but still useful as a learning tool. Focus on the hazard recognition and safety management sections first, then study industrial hygiene fundamentals separately before retesting.