CHST Exam 2025 Questions with Complete
Answers
not less than 25 feet and not more than 75 feet - ANS On a construction site, fire extinguishers
should be how close/how far from flammable materials?
How to determine modified rate - ANS modification rate X manual rate
If a company is cited by OSHA, you must post the violation for how many days? - ANS Three
What is article 500 of the NEC - ANS Hazardous Locations
Balance by design and blast gate methods - ANS According to the ACGIH, there are two ways to
control air flor distribution
nA sphere, 2 foot in diameter, centered on the head
nOf course, the closer the better... - ANS When taking measurements in the "hearing zone", in a
non-reverberant environment, what is the recommended distance?
What is the definition of a STS?(1910.95) - ANS nThe Standard Threshold Shift, that is revealed
by the annual audiogram, is a shift from the baseline of 10db or more in the 2000, 3000, or
4000 Hz in the left or right ear. (A Hz is one cycle per second)v
Once a Significant Threshold Shift is observed for an employee, the hearing protection
attenuation must reduce the exposure to... - ANS TWA of 85 DB
impact or impulse noise should be limited to? - ANS 140 db peak sound pressure level
NFPA 704 Diamond - ANS Red - flammability, BLUE - health hazard, YELLOW - reactivity, WHITE -
reacts with water, oxidizing problems, special precautions (anything greater than "1" = stop
Answers
not less than 25 feet and not more than 75 feet - ANS On a construction site, fire extinguishers
should be how close/how far from flammable materials?
How to determine modified rate - ANS modification rate X manual rate
If a company is cited by OSHA, you must post the violation for how many days? - ANS Three
What is article 500 of the NEC - ANS Hazardous Locations
Balance by design and blast gate methods - ANS According to the ACGIH, there are two ways to
control air flor distribution
nA sphere, 2 foot in diameter, centered on the head
nOf course, the closer the better... - ANS When taking measurements in the "hearing zone", in a
non-reverberant environment, what is the recommended distance?
What is the definition of a STS?(1910.95) - ANS nThe Standard Threshold Shift, that is revealed
by the annual audiogram, is a shift from the baseline of 10db or more in the 2000, 3000, or
4000 Hz in the left or right ear. (A Hz is one cycle per second)v
Once a Significant Threshold Shift is observed for an employee, the hearing protection
attenuation must reduce the exposure to... - ANS TWA of 85 DB
impact or impulse noise should be limited to? - ANS 140 db peak sound pressure level
NFPA 704 Diamond - ANS Red - flammability, BLUE - health hazard, YELLOW - reactivity, WHITE -
reacts with water, oxidizing problems, special precautions (anything greater than "1" = stop
