Essentials Of Fire Fighting

Question 1

NFPA ___, Standard for Portable Fire Exstinguishers, provides additional information on rating, placement, and use.

Answer 1

10

Question 2

The stated minimum size requirement for a dry chemical extinguisher is on with a rating of ____; the required rating for a carbon dioxide (CO2) extinguisher is ___.

Answer 2

80 B:C, 10 B:C

Question 3

NFPA 1901 also requires pumping apparatus to carry one 2 1/2 gallon or larger ___extinguisher with a mounting bracket for use on Class A fires

Answer 3

Water

Question 4

Stored-pressure water extinguishers, also called air-pressurized water (APW) extinguishers, are useful for all types of small Class __ fires and are often used for extinguishing confined hot sports during over haul operations.

Answer 4

A

Question 5

AFFF extinguishers are suitable for use on Class ___ and Class ___ fires. Also useful but combating fires or suppressing vapors on small liquid fuel spills

Answer 5

A, B

Question 6

Two basic types of dry chemical extinguishers in use today:

Answer 6

Regular B:C-rated

Multipurpose & A:B:C-rated

Question 7

Commonly used dry chemical extinguishers

Answer 7

Sodium bicarbonate
  Potassium bicarbonate
  Urea-potassium bicarbonate
  Potassium chloride
  Mono ammonium phosphate

Question 8

Classes or fires 
  A-\_\_\_\_\_ Green
  B-\_\_\_\_\_ Red
  C-\_\_\_\_\_ Blue
  D-\_\_\_\_\_ Yellow

Answer 8

Ordinary combustible
Flammable Liquids
Electrical
Metals

Question 9

Letters indicate the _____ of fuel on which the extinguisher will be effective

Answer 9

Class

Question 10

Class A & B extinguishers are also rated according to performance capability, represented by a ____

Answer 10

Number

Question 11

Classification Tests are conducted by (UL)

Answer 11

Underwriters Laboratories . Inc

Question 12

Class A EX. Are rated from 1-A through __-A. Based on agent amount, duration and range.

Answer 12

40

Question 13

Class B EX are rated from 1-B - __-B. Based on the approximate sq/ft area of a flammable liquid.

Answer 13

640

Question 14

Class C EX, no Rating.

Answer 14

Class A&B fires that are energized.

Question 15

Class ___ agents cannot be given a multipurpose rating for use on other classes of fire.

Answer 15

D

Question 16

The alphabetical/geometric symbols for the four classes of fire

Answer 16

Green triangle
Red Square
Blue Circle
Yellow star

Question 17

Dry Chemical EX have a corrosive residue.

Answer 17

Don’t use on sensitive electronic.

Question 18

EX. That is deficient in weight by ___ %, should be removed.

Answer 18

10

Question 19

Inverting-type fire EX. No longer made after

Answer 19

1969

Question 20

3 Methods of moving water in a system

Answer 20

Direct pumping
Gravity system
Combination

Question 21

Grid system should consist of the following

Answer 21

Primary feeders-16”
Secondary feeders-12”
Distributors-8”, individual hydrants

Question 22

Residential areas should be closely girded by 8” cross connecting mains at intervals not more than ___ ft.

Answer 22

600’

Question 23

Control Valves in a water distribution system

Answer 23

Gate valve, butterfly

Question 24

2 types of valves for water systems

Answer 24

Indicating

Non-indicating

Question 25

_____ is that forward velocity pressure which is found on a water distribution system during normal consumption demands

Answer 25

Normal operation pressure

Question 26

_____ pressure at a discharge opening while water is flowing.

Answer 26

Flow presure

Question 27

Fire hydrants should not be spaced more than ____ apart in high valve districts.

Answer 27

300ft

Question 28

Water shuttles are recommended for distances greater than ___

Answer 28

1/2 mile

Question 29

Hydrants Color Codes

Answer 29

AA light Blue-> 1500 GPM
A Green 1000-1499
B Orange 500-999
C Red <500