Question 1
A safety technician measures a chemical concentration of 250 ppm. What does "ppm" stand for?
Correct Answer:
Parts per million
Question 2
A company experiences 4 recordable injuries in a quarter with 250,000 total hours worked. What is the Total Recordable Incident Rate (TRIR)?
Correct Answer:
3.2
Question 3
What is the primary difference between an acute exposure and a chronic exposure to a hazardous substance?
Correct Answer:
Acute exposures occur over short periods; chronic exposures occur over extended periods
Question 4
A facility has direct costs of $50,000 from an accident and indirect costs estimated at 4 times the direct costs. Using the standard indirect cost multiplier, what are the total accident costs?
Correct Answer:
$$250,000
Question 5
In the context of Process Safety Management (PSM), what is the significance of the lower flammability limit (LFL)?
Correct Answer:
It indicates the minimum concentration of a flammable gas or vapor in air below which propagation of flame does not occur
Question 1
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About this Exam

Prepare with the OHST Practice Questions - Occupational Hygiene and Safety Technician (OHST) Exam practice quiz. This question bank includes 100 questions covering primary, maximum, minimum, safety, and hazard. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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OHST Practice Questions - Occupational Hygiene and Safety Technician (OHST) Exam

This practice set contains 100 questions from the matching question bank and focuses on primary, maximum, minimum, safety, and hazard. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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