CHST TEST QUESTIONS AND ANSWERS

Which of the following is NOT considered a significant factor in determining the outcome of an electrocution event? - Answer- 1. The amount of electrically resistant material present in work boots and work gloves. A Noise-Hazard Control Program (and associated Hearing Conservation Program) is required under OSHA regulation 29 CFR 1910.95 (Occupational Noise Exposure) where workers may be exposed to noise levels in excess of an eight -hour-time-weighted average of.. - Answer- 2. 85 decibels (dB) As per 29 CFR 1910.1001, the allowable eight-hour exposure limit concentration to asbestos fibers is not to exceed which of the following? - Answer- 3. 0.1 fibers per cm^3 of air Per OSHA regulations 29 CFR 1910.25-1910.27, the maximum length a single ladder or a single section of ladder may be is.. - Answer- 4. No greater than 30 feet Which of the following is NOT stipulated as a hazardous waste material attribute to which the U.S. Environmental Protection Agency extends a designated waste code (e.g., #D001), as per 40 CFR 261, Subpart C? - Answer- 5. Mutagenicity In a construction environment, which of the following types of PPE is most suitable for protecting the eyes against airborne dust? - Answer- 6. Safety goggles At what minimum frequency must electrical-insulating gloves be tested to ensure they adequately protect workers against electrical shock? - Answer- 7. Every six months The most useful tool that CHST's can potentially use for evaluating system safety levels at smaller-scale worksites is a(n): - Answer- 8. Job Safety Analysis (JSA) If 25 or more employees are to be working unserground at the same time, which of the following safety procedures MUST be in effect? - Answer- 9. Two separate rescue teams must be available. One within 30 minutes travel and the second within two hours travel If a five-foot deep trench is dug in clay material, what angle must the trench wall not exceed? - Answer- 10. 53 degrees "Lifting Index" (LI) is calculated per which of the following? - Answer- 11. Load weight / recommended weight limit "Flash Point" is most accurately defined as which of the following? - Answer- 12. The lowest temperature at which a flammable liquid can form an ignitable mixture in air