TB 090 - Fire Burns

Question 1

Steam can cause full thickness burns to unprotected skin with less than __ seconds exposure

Answer 1

3

Question 2

Tests indicate that exposure to temperatures of only ____-____ F will cause extreme pain and severe, full thickness burns to all unprotected skin

Answer 2

280-320

Question 3

•Second Degree Burns can occur with exposure to only ____ degrees.

Answer 3

111

Question 4

•Second Degree Burns can occur within ___ seconds of exposure to ____ degrees.

Answer 4

20
131

Question 5

•Second Degree Burns can occur within __ second of exposure to ___ degrees.

Answer 5

1
158

Question 6

A Firefighter caught in a flashover, just five feet inside a room, will be exposed to temperatures of _____ to _____F, and direct flame impingement for at least __ seconds

Answer 6

1,000 to 1,500F
2

Question 7

A BTU is the amount of heat required to raise the temperature of __ pound of water __ degree fahrenheit

Answer 7

1
1

Question 8

Water has a Latent Heat of fusion of ___ BTU’s and Latent Heat of vaporization of ___ BTU’s

Answer 8

143
970

Question 9

__________ is one of the major causes of fire ground fatalities. It is the most dangerous stage of fire development

Answer 9

Flashover

Question 10

There are three stages in the development of an interior fire:
1. _______ Stage
2. _______ developed Stage
3. _______ Stage

Answer 10

1. Growth
2. Fully
3. Decay

Question 11

Flashover occurs during the ______ _____ stage

Answer 11

Fully Developed

Question 12

Backdraft - Oxygen content must fall to between ___% and ___%

Answer 12

11% to 15%

Question 13

Backdraft - Explosive products of combustion are _____F to _____F and higher, well above their ignition temperature

Answer 13

1,000 to 1,800

Question 14

Differences Between Flashover and Backdraft is the amount of
____ present

Answer 14

Air

Question 15

_______ _________
Conditions for a smoke explosion develop before Firefighters enter or while they fight fire
in the early stages as super heated smoke particles build up and are forced into enclosed, hidden areas

Answer 15

Smoke Explosion

Question 16

There are four construction features that present the greatest danger to Firefighters from collapse:
1. Any type of truss construction
2. Unreinforced masonry construction
3. Any cantilever construction
4. Unprotected steel construction

Answer 16

4

Question 17

Increased used of synthetic furniture burn __ to __ times hotter and faster than ordinary combustibles.

Answer 17

2 to 3

Question 18

These warning signs may not be apparent in buildings with large unenclosed floor or
attic spaces and ceilings ___ to __ feet above the floor or joist level

Answer 18

12
20

Question 19

In general, provide a minimum of two ladders to every structure and __ additional ladder for every two member team on the roof.

Answer 19

1