STSC Fire Prevention and Protection in Construction 2

Question 1

What does the 'fire triangle' represent in fire prevention?

Accepted Answer

The three elements needed for fire: fuel, oxygen, and heat/ignition source

Answer

The fire triangle shows that fire requires fuel, oxygen, and heat — removing any one element extinguishes or prevents fire.

Question 2

Under OSHA 29 CFR 1926.150, portable fire extinguishers on construction sites must be inspected:

Accepted Answer

At least monthly

Answer

OSHA requires that fire extinguishers be inspected monthly to ensure they are fully charged and operational.

Question 3

Which fire extinguisher class is rated for fires involving flammable liquids such as gasoline, diesel fuel, and solvents?

Accepted Answer

Class B

Answer

Class B extinguishers are designed for flammable liquid fires — commonly found in construction where fuels, paints, and solvents are used.

Question 4

Hot work permits are required for operations that produce sparks or flame because:

Accepted Answer

They ensure fire hazards are identified, combustibles removed, and fire watches are established before work begins

Answer

Hot work permits create a systematic process to evaluate and control ignition hazards before welding, cutting, or grinding begins.

Question 5

The minimum distance for placing a portable fire extinguisher from any hazard area is:

Accepted Answer

10 feet

Answer

OSHA requires that fire extinguishers be no more than 100 feet from a flammable liquid hazard and be placed within reach but not so close they are inaccessible during a fire.

(STSC) Safety Trained Supervisor Construction Practice Test

(STSC) Safety Trained Supervisor Construction Practice Test

STSC Fire Prevention and Protection in Construction 2