AIT Safety Practices 3

Question 1

Which color is universally used on safety labels and signs to indicate a DANGER condition?

Accepted Answer

Red

Answer

Red is used for danger signs indicating an imminently hazardous situation that, if not avoided, will result in death or serious injury (ANSI Z535 standard).

Question 2

What does a confined space require before entry, according to OSHA's Permit-Required Confined Space standard?

Accepted Answer

Atmospheric testing, ventilation, isolation of hazards, and a written entry permit

Answer

OSHA 29 CFR 1910.146 requires atmospheric testing, hazard isolation, ventilation, and a written entry permit before entering a permit-required confined space.

Question 3

What minimum oxygen concentration in the air is required for a confined space to be considered safe for entry without supplied air?

Accepted Answer

19.5%

Answer

OSHA requires a minimum of 19.5% oxygen concentration; below this level the atmosphere is considered oxygen-deficient and dangerous.

Question 4

Which OSHA standard requires employers to inform workers about hazardous chemicals in the workplace?

Accepted Answer

OSHA 1910.1200 (Hazard Communication)

Answer

OSHA's Hazard Communication Standard (29 CFR 1910.1200), also known as HazCom or the 'Right-to-Know' rule, requires chemical labeling and SDS availability.

Question 5

An apprentice finds a frayed electrical extension cord on the job site. What should be done?

Accepted Answer

Remove it from service, tag it as defective, and report it for replacement

Answer

Damaged electrical cords must be taken out of service immediately because exposed wiring creates serious shock, burn, and fire hazards.

(AIT) Apprenticeship and Industry Training Practice Test

(AIT) Apprenticeship and Industry Training Practice Test

AIT Safety Practices 3