NSC Hazard Recognition 5

Question 1

Which of the following scenarios BEST illustrates a 'fall from elevation' hazard?

Accepted Answer

A roofer working near an unguarded roof edge

Answer

Working near an unguarded roof edge creates a fall from elevation hazard, one of the leading causes of construction fatalities.

Question 2

What is the PRIMARY purpose of conducting a toolbox talk before a work shift?

Accepted Answer

To identify and communicate job-specific hazards workers may encounter

Answer

Toolbox talks raise hazard awareness by discussing safety topics relevant to the specific work being performed that day.

Question 3

Which of the following is an example of an electrical hazard?

Accepted Answer

A damaged extension cord with exposed wiring in a wet area

Answer

Damaged cords with exposed wiring in wet environments create serious electrical shock and electrocution hazards.

Question 4

During a hazard identification process, which sense is LEAST reliable for detecting all workplace hazards?

Accepted Answer

Touch

Answer

Touch is the least reliable method because hazards like hot surfaces, energized equipment, and chemicals can cause immediate injury before recognition.

Question 5

A worker in a printing facility is exposed to isopropyl alcohol vapors throughout the day. This is BEST categorized as which type of hazard?

Accepted Answer

Chemical hazard

Answer

Isopropyl alcohol vapor is a chemical hazard that can cause respiratory irritation, headaches, and central nervous system effects.

NSC Practice Test

NSC Practice Test

NSC Hazard Recognition 5