CSP Certified Safety Professional (CSP) Random 5

Question 1

A workplace noise exposure survey finds a worker is exposed to 95 dBA for 4 hours and 90 dBA for 4 hours. Using OSHA's permissible exposure limits, what is the dose?

Accepted Answer

125%

Answer

Dose = (4/4) + (4/8) = 1.0 + 0.5 = 1.5 = 150%; at 95 dBA the PEL is 4 hours and at 90 dBA it is 8 hours.

Question 2

Which type of fire extinguisher is specifically rated for use on energized electrical equipment fires (Class C)?

Accepted Answer

Non-conductive agent extinguisher (CO2 or dry chemical)

Answer

Class C fires involving energized electrical equipment require non-conductive extinguishing agents such as CO2 or dry chemical to avoid electrical shock to the operator.

Question 3

Under OSHA's Respiratory Protection Standard (29 CFR 1910.134), an Assigned Protection Factor (APF) of 10 means the respirator:

Accepted Answer

Is approved for use up to 10 times the PEL

Answer

An APF of 10 means the respirator is expected to reduce workplace concentration by a factor of 10, so it can be used when exposures are up to 10× the OEL.

Question 4

The Haddon Matrix is a tool used in safety analysis that organizes factors across three phases and three columns. The three phases are:

Accepted Answer

Pre-event, Event, Post-event

Answer

The Haddon Matrix analyzes injury factors across Pre-event, Event, and Post-event phases against host, agent/vehicle, and environment factors.

Question 5

Which term describes the probability that a system or component will perform its required function under stated conditions for a specified period of time?

Accepted Answer

Reliability

Answer

Reliability is the probability that a system performs its intended function without failure over a specified time interval and under specified conditions.

Certified Safety Professional Exam Practice Test

Certified Safety Professional Exam Practice Test

CSP Certified Safety Professional (CSP) Random 5