Deck 15: Fire Hazards and Life Safety

Question 1

What are the three elements required for starting and sustaining fire?

A) Heat, smoke, and fire
B) Smoke, fuel, and heat
C) Fuel, heat, and oxygen
D) Oxygen, fire, and smoke

Answer 1

C

Question 2

The product of combustion is energy in the form of light.

Answer 2

False

Question 3

The National Fire Protection Association has devised a system, NFPA 704, for quick identification of hazards presented when substances burn. Which color would be used to identify reactivity?

A) Red
B) Blue
C) Yellow
D) White

Answer 3

C

Question 4

Exothermic reactions generate light.

Question 5

Fires are classified according to their properties, which relate to the nature of the fuel. What class of fire has a metal fuel?

A) Class A
B) Class B
C) Class C
D) Class D

Question 6

Which of the following would not be considered hot work?

A) Brazing
B) Soldering
C) Pressure washing
D) Chipping

Question 7

Cooling is not one of the principal ways to control a fire or extinguish it.

Question 8

OSHA defines hot work as welding, cutting, chipping, and the use of tools that cause sparks.

Question 9

Carbon is found in almost every flammable substance.

Question 10

Which of the following are products of combustion?

A) Solids, vapors, oxidizers, and hydrogen
B) Gases, flame, heat, and smoke
C) Oxygen, hydrogen, and vapor
D) Vapors, oxidizers, and fuel

Question 11

Flammable liquids have a flash point below 100 $\degree$ F.

Question 12

The result of incomplete combustion of fuel is carbon monoxide, which is

A) Odorless
B) Colorless
C) Deadly gas
D) All of the above

Question 13

An explosion is a very rapid, contained fire.

Question 14

The weight of a flammable vapor compared to air is called which of the following?

A) Lower flammable limit
B) Vapor density
C) PEL
D) Upper flammable limit

Question 15

Fire hazards are conditions that favor fire development or growth.

Question 16

PEL is the Permissible Exposure Limit (PEL) of a vapor expressed in parts of vapor per million parts of contaminated air.

Question 17

Most gases are heavier than air.

Question 18

Carbon monoxide is not a colorless, odorless, deadly gas.

Question 19

Chemical reactions in a fire break materials down into basic elements.