CHST Worksite Audit Practice

Question 1

For rooms storing more than 60 gallons of flammable liquids, what is the minimum extinguisher rating and its distance from the door opening?

20-B units, located inside the room within 5 feet of the door 12-B units, located outside within 20 feet 20-B units, located outside of the room but not more than 10 feet from the door opening 4-B units, located outside far from the door

Correct Answer:

20-B units, located outside of the room but not more than 10 feet from the door opening

Explanation:

When dealing with flammable liquids, extinguishers must be rated for Class B fires and placed so they’re easily reachable in an emergency. If the room stores more than 60 gallons, the minimum extinguisher rating becomes 20-B. The best placement is outside the room, within 10 feet of the door opening. This setup lets you grab the extinguisher quickly as you approach or leave the room, keeps the doorway clear, and avoids having to enter a space that could be hazardous. A smaller rating (like 12-B or 4-B) wouldn’t be sufficient for the amount stored, and placing the extinguisher farther away than 10 feet would delay response.

Question 2

If you have an EMR greater than what value, you have above average losses and a less than standard performance?

0.5 1 1.5 2.0

Correct Answer:

Explanation:

EMR, or Experience Modification Rate, is a multiplier used to adjust workers’ comp premiums based on a company’s actual vs. expected losses. A value of 1.0 represents average performance. If the EMR is greater than 1, losses exceed expectations, indicating above-average losses and performance that’s below standard. If the EMR is below 1, losses are lower than expected, showing better-than-average performance. So the threshold you’re looking for is 1.0.

Question 3

What is the first step when doing CPR?

Check Airway Check Blood Pressure Check Circulation Check Breathing only

Correct Answer:

Check Airway

Explanation:

Opening the airway first is the essential starting move in CPR because air must reach the lungs for effective ventilation. With the person on their back, tilt the head back and lift the chin (or use a jaw‑thrust if a spinal injury is suspected) to keep the airway open, and clear any obvious obstruction if it’s safe to do so. Once the airway is open, you can assess breathing and, if needed, begin rescue breaths in combination with chest compressions. The other options aren’t the starting step: blood pressure isn’t something you check during CPR, and attempting to check circulation or starting with breathing only won’t establish the needed airflow and circulation that CPR provides.

Question 4

The C in the chemical element table stands for which element?

Carbon Calcium Cobalt Copper

Correct Answer:

Carbon

Explanation:

The symbol C on the periodic table represents Carbon. Each element has a unique symbol, usually one or two letters with the first letter capitalized and any second letter lowercase. Calcium is Ca, Cobalt is Co, and Copper is Cu, so the single-letter C specifically denotes Carbon. In formulas like CH4, the C stands for Carbon as well.

Question 5

If a weight is distributed evenly on a beam, how much more load can it carry compared to a single, concentrated load?

Twice as much The same amount Half as much Three times as much

Correct Answer:

Twice as much

Explanation:

Understanding how load distribution affects bending moments explains why a distributed load allows more total weight than a single concentrated load. For a simply supported beam, the maximum bending moment under a uniform load across the span is smaller than the maximum moment under a central point load with the same total weight. If you take the same total load, the uniform load produces about half the peak moment of the central point load. So to reach the same allowable moment, you can apply roughly twice as much total load when the load is spread evenly. That’s why the beam can carry about twice as much load with a uniform distribution as with a single concentrated load, assuming the same span, material, and support conditions.

Question 1

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About this Exam

The Construction Health and Safety Technician (CHST) certification, administered by the Board of Certified Safety Professionals (BCSP), is the premier credential for dedicated construction safety specialists. This certification validates essential knowledge and skills needed to effectively prevent work-related injuries and illnesses on construction sites. The CHST is designed for professionals who work either full-time or part-time in construction safety and have at least three years of construction experience, with a significant portion dedicated to safety duties. Mastering worksite audits is a cornerstone of this designation, and this CHST Worksite Audit Practice Test is a vital resource created to sharpen your proficiency in this critical area. This specialized practice tool is intended to bolster your readiness for the real exam by focusing on the domain that ensures safety programs are not just written, but effectively implemented.

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