FREE STSC Fire Prevention and Protection in Construction Questions and Answers

Question 1

According to OSHA standards for a construction site, what is the maximum travel distance from any point of a protected area to the nearest fire extinguisher for Class A fire hazards?

Accepted Answer

75 feet

Answer

For Class A fires (ordinary combustibles like wood, paper, and trash), OSHA standard 1926.150(c)(1)(i) requires that a fire extinguisher, rated not less than 2A, be provided for each 3,000 square feet of the protected building area. The travel distance from any point to the nearest fire extinguisher shall not exceed 75 feet.

Question 2

A supervisor needs to store more than 25 gallons of a Class IB flammable liquid on the job site. Which of the following is an approved storage method?

Accepted Answer

In an approved flammable liquid storage cabinet.

Answer

OSHA 1926.152 outlines the requirements for flammable and combustible liquid storage. Quantities over 25 gallons must be stored in an approved flammable liquid storage cabinet, which is specifically designed to protect the contents from fire for a specified period.

Question 3

During a hot work operation (e.g., welding), what is the primary duty of the designated fire watch?

Accepted Answer

To watch for and extinguish any incipient stage fires in the hot work area.

Answer

The fire watch's sole responsibility is to monitor the hot work area for any signs of fire. They must be trained to use a fire extinguisher, know how to sound the alarm, and must remain on duty for at least 30 minutes after the hot work is completed to watch for smoldering fires.

Question 4

A fire breaks out involving energized electrical equipment in a temporary site office. Which type of fire extinguisher is most appropriate to use?

Accepted Answer

Class C (Carbon Dioxide or Dry Chemical)

Answer

Class C fire extinguishers are designed for use on fires involving energized electrical equipment. They use non-conductive extinguishing agents like carbon dioxide or dry chemical powder, which will not create an electrocution hazard for the user.

Question 5

From a fire prevention standpoint, what is the most critical reason for a supervisor to enforce good housekeeping practices on a construction site?

Accepted Answer

To prevent the accumulation of combustible debris that could fuel a fire.

Answer

Poor housekeeping is a leading cause of construction fires. The accumulation of combustible materials like wood scraps, cardboard, and packaging provides ample fuel for a fire to start and spread rapidly. Regular cleanup is a fundamental and effective fire prevention measure.

(STSC) Safety Trained Supervisor Construction Practice Test

(STSC) Safety Trained Supervisor Construction Practice Test

FREE STSC Fire Prevention and Protection in Construction Questions and Answers