Hazard Recognition and Control Flashcards
7 cards from real COSS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Hazard Recognition and Control flashcards as text
Which type of confined space requires a written permit, attendant, and trained entry supervisor before entry?
Answer: Permit-required confined space
A permit-required confined space has one or more serious hazards (atmospheric, engulfment, entrapment) and requires a formal entry permit system.
During an incident investigation, a safety specialist discovers that a worker was not trained on a new chemical introduced to the worksite. This is BEST classified as which type of cause?
Answer: Root cause
A systemic failure such as lack of required training is a root cause—the underlying deficiency that allowed the hazardous condition to exist.
What is the primary purpose of a 'change analysis' or 'Management of Change' (MOC) process in hazard recognition?
Answer: Identify new hazards introduced by process, equipment, or material changes before implementation
MOC systematically evaluates changes before they are implemented to identify and control new hazards they may introduce.
Which ionizing radiation type has the GREATEST penetrating power and requires the most shielding?
Answer: Gamma rays
Gamma rays are highly penetrating electromagnetic radiation requiring dense shielding such as lead or thick concrete to attenuate effectively.
A safety specialist is assessing a warehouse where workers manually lift boxes weighing 50 lbs repeatedly throughout the day. Which NIOSH lifting equation component accounts for the horizontal distance of the hands from the body?
Answer: Horizontal multiplier (HM)
The horizontal multiplier (HM) in the NIOSH Revised Lifting Equation penalizes lifts where the load is held far from the body's midline.
A facility stores flammable liquids in an inside storage room. OSHA requires that the room be constructed with what minimum fire resistance rating for the walls?
Answer: 1 hour
OSHA 29 CFR 1910.106 requires inside storage rooms for flammable and combustible liquids to have walls with at least a 1-hour fire resistance rating.
Which hazard recognition technique uses the question 'What could go wrong if...?' to systematically evaluate potential failure scenarios?
Answer: What-If Analysis
What-If Analysis uses open-ended 'what if' questions to brainstorm potential failure scenarios and their consequences.