FREE Construction Health and Safety Technician MCQ Questions and Answers Flashcards

Under OSHA's cranes and derricks standard (29 CFR 1926.1408), what is the minimum required clearance distance from energized power lines up to 50 kV when no encroachment prevention measures are in place?

Answer: 10 feet

OSHA requires a minimum 10-foot clearance from energized power lines up to 50 kV unless the line is de-energized or an exception applies.

The CHST exam is administered by which certifying organization?

Answer: Board of Certified Safety Professionals (BCSP)

The CHST credential is awarded and administered by the Board of Certified Safety Professionals (BCSP).

When performing a root cause analysis after an incident, which tool is BEST suited for systematically identifying contributing causes by asking 'why' repeatedly?

Answer: 5 Whys technique

The 5 Whys technique involves asking 'why' up to five times to drill down from the symptom of a problem to its root cause.

According to OSHA's respiratory protection standard (29 CFR 1910.134), a fit test is required:

Answer: Annually for tight-fitting respirators and whenever the worker reports a change affecting fit

OSHA requires fit testing annually and whenever the worker reports a facial change (weight loss/gain, dental work, scarring) that could affect the seal.

Which safety principle does the phrase 'Heinrich's Triangle' (or Safety Triangle) represent?

Answer: For every fatality there are a predictable number of minor injuries and near-misses at lower levels

Heinrich's Triangle illustrates that for each serious injury there are many minor injuries and an even greater number of near-misses, suggesting near-miss control prevents major injuries.

A construction supervisor observes a worker using an extension cord with a damaged outer jacket. The BEST immediate corrective action is to:

Answer: Remove the cord from service and replace it with an undamaged cord

Damaged extension cords must be removed from service immediately; repairs by taping do not restore the cord's integrity and are not an acceptable remedy on construction sites.

Under OSHA's heat illness prevention guidance, which physiological condition is considered the MOST severe heat-related illness requiring immediate emergency response?

Answer: Heat stroke

Heat stroke is life-threatening, characterized by core body temperature above 104°F and altered mental status, requiring immediate cooling and emergency medical care.