NSC Hazard Recognition 4

Question 1

Which tool is MOST commonly used to systematically identify hazards for a specific job task?

Accepted Answer

Job Hazard Analysis (JHA)

Answer

A Job Hazard Analysis breaks down a task into steps and identifies the potential hazards and controls for each step.

Question 2

An employee working outdoors in summer heat begins to experience dizziness and excessive sweating. What hazard is involved?

Accepted Answer

Environmental physical hazard from heat stress

Answer

Heat stress is a physical environmental hazard that can progress to heat exhaustion or heat stroke if unrecognized.

Question 3

Which of the following represents a 'struck-by' hazard on a construction site?

Accepted Answer

Tools or materials falling from upper levels onto workers below

Answer

Struck-by hazards occur when an object makes forceful contact with a worker, such as falling tools or equipment.

Question 4

When conducting a safety inspection, the color-coding of pipes and containers is reviewed. What hazard does color-coding primarily help workers recognize?

Accepted Answer

Chemical and material content hazards

Answer

Color-coding systems like ANSI pipe marking alert workers to the type of substance contained, helping identify chemical and safety hazards.

Question 5

A newly hired worker is most at risk for workplace injury during which period?

Accepted Answer

During the first days and weeks on the job

Answer

New workers lack familiarity with workplace hazards, equipment, and procedures, making the first weeks the highest-risk period.

NSC Practice Test

NSC Practice Test

NSC Hazard Recognition 4