TB #90 FIRE BURNS

Question 1

ACCORDING TO TB # 90, STEAM BURNS CAN CAUSE FULL THICKNESS BURNS TO UNPROTECTED SKIN WITH LEASS THAN __ SECONDS EXPOSURE.

Answer 1

3

Question 2

ACCORDING TO TB # 90, 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°F

Question 3

ACCORDING TO TB # 90, SECOND DEGREE BURNS CAN OCCUR WITH EXPOSURE TO ONLY ___°F

Answer 3

111°F

Question 4

ACCORDING TO TB # 90, SECOND DEGREE BURNS CAN OCCUR WITHIN 20 SECONDS OF EXPOSURE TO ___°F

Answer 4

131°F

Question 5

ACCORDING TO TB # 90, SECOND DEGREE BURNS CAN OCCIR WITHIN ONE SECOND OF EXPOSURE TO ___°F

Answer 5

158°F

Question 6

ACCORDING TO TB # 90, A FIREFIGHTER CAUGHT IN A FLASHOVER JUST 5 FT INSIDE A ROOM WILL BE EXPOSED TO TEMPERATURES OF ____°F TO ____°F AND DIRECT FLAME IMPINGEMENT FOR AT LEAST 2 SECONDS

Answer 6

1,000°F TO 1,500°F

Question 7

ACCORDING TO TB # 90, THERE ARE 6 OBSERVABLE OR MEASURABLE FACTORS IN A CLASS “A” FIRE:

Answer 7

1. INPUT HEAT
2. FUEL
3. OXYGEN
4. PROPORTIONING OF THE FUEL/AIR MIXTURE
5. MIXING OF THE FUEL/AIR MIXTURE
6. UNINHIBITED CHAIN REACTIONS BETWEEN ACTIVE FUEL/AIR MOLECULES

Question 8

ACCORDING TO TB # 90, BTU OR BRITISH THERMAL UNIT IS A BASIC UNIT OF HEAT. A BTU IS THE AMOUNT OF HEAT REQUIRED TO RAISE THE TEMPERATURE OF __ LB OF WATER __°F.

Answer 8

1 LB, 1°F

Question 9

ACCORDING TO TB # 90, SPECIFIC HEAT IS THE NUMBER OF BTU’S REQUIRED TO RAISE THE TEMPERATURE OF __ LB OF A SUBSTANCE __ °F.

Answer 9

1 LB, 1°F

Question 10

ACCORDING TO TB # 90, WATER HAS A LATENT HEAT OF FUSION OF ___ BTU’S AND LATENT HEAT OF VAPORIZATION OF ___ BTU’S.

Answer 10

143 BTU’S, 970 BTU’S

Question 11

ACCORDING TO TB # 90, HEAT IS TRANSFERRED IN 3 DIFFERENT WAYS

Answer 11

1. RADIATION
2. CONVECTION
3. CONDUCTION

Question 12

ACCORDING TO TB # 90, THERE ARE 3 STAGES IN THE DEVELOPMENT OF AN INTERIOR FIRE

Answer 12

1. GROWTH STAGE
2. FULLY DEVELOPED STAGE
3. DECAY STAGE

Question 13

ACCORDING TO TB # 90, FLASHOVER IS…

Answer 13

THE SUDDEN FULL ROOM OR AREA INVOLVEMENT IN FLAME

Question 14

ACCORDING TO TB # 90, ROLLOVER IS…

Answer 14

A SUDDEN SPORADIC GENERATION OF FLAME MIXED WITH SMOKE AT THE UPPER CEILING LEVEL JUST BEFORE FLASHOVER OCCURS.

Question 15

ACCORDING TO TB # 90, FOR BACKDRAFT TO OCCUR OXYGEN CONTENT MUST FALL BETWEEN __% & __%. EXPLOSIVE PRODUCTS OF COMBUSTION ARE ___°F TO ___°F AND HIGHER, WELL ABOVE THEIR IGNITION TEMPERATURE

Answer 15

11% & 15%, 1000°F TO 1800°F

Question 16

ACCORDING TO TB # 90, THE PRIMARY DIFFERENCE BETWEEN FLASHOVER & BACKDRAFT IS THE AMOUNT OF AIR PRESENT. IN A FLASHOVER THERE IS SUFFICIENT OXYGEN TO SUPPORT COMBUSTION WHILE A BACKDRAFT OCCURS DURING THE SMOLDERING OR DECAY STAGE OF A FIRE

TRUE/FALSE

Answer 16

TRUE

Question 17

ACCORDING TO TB # 90, THERE ARE 4 CONSTRUCTION FEATURES THAT PRESENT THE GREATEST DANGER TO FIREFIGHTERS FROM COLLAPSE…

Answer 17

1. ANY TYOE OF TRUSS CONSTRUCTION
2. UNREINFORCED MASONRY CONSTRUCTION
3. ANY CANTILEVER CONSTRUCTION
4. UNPROTECTED STEEL CONSTRUCTION

Question 18

ACCORDING TO TB # 90, MAKE ENTRY FROM THE UNINVOLVED TO THE INVOLVED

TRUE/FALSE

Answer 18

TRUE

Question 19

ACCORDING TO TB # 90, PROVIDE A MINIMUM OF __ LADDERS TO EVERY STRUCTURE AND ONE ADDITIONAL LADDER FOR EVERY TWO MEMBER TEAM ON THE ROOF.

Answer 19

2