Chapter 4 -Fire Ground Operations

Question 1

when attaching blind caps to the 6” intakes, it is only necessary to put them on ________.

Answer 1

hand tight

Question 2

the hard sleeve connections must be hammered with a _____ to ensure a leak free fit

Answer 2

rubber mallet

Question 3

from the standpoint of maximum efficiency (volume), it is best to use the 6” intake on the _____side

Answer 3

drivers side

Question 4

the end of the hard sleeve assembly shall be submerged at least ____inches

Answer 4

18

Question 5

whirlpools can be prevented by placing a _____ at the water surface

Answer 5

baffle

Question 6

baffles can be improvised from what?

Answer 6

wooden door, salvage cover or similar objects

Question 7

when preparing a pump for drafting, the transfer valve should be in the _____position

Answer 7

volume

Question 8

if less than _____% of the capacity is being flowed, consider placing the pump in pressure stage after achieving a draft.

Answer 8

70%

Question 9

one inch of mercury is equivalent to ____ft of lift when not discharging any water

Answer 9

1

Question 10

fill your tank up from a draft (true/false)

Answer 10

false *do not fill tank from draft

Question 11

engage primer until draft is achieved, no longer than _____ seconds

Answer 11

45

Question 12

the strainer should be kept off the bottom (true/false)

Answer 12

true *to prevent grit from entering the pump

Question 13

hydrant capacity 1500 or > gpm

Answer 13

blue

Question 14

hydrant capacity 1000-1499 gpm

Answer 14

yellow

Question 15

hydrant capacity 500-999 gpm

Answer 15

orange

Question 16

hydrant capacity 500 or < gpm

Answer 16

red

Question 17

hydrant capacity (not tested yet)

Answer 17

white

Question 18

static reading - residual reading = __________

Answer 18

pressure drop

Question 19

pressure drop divided by static pressure =_________

Answer 19

percentage

Question 20

static pressure is ___________

Answer 20

no water flowing

Question 21

residual pressure is ____________

Answer 21

water flowing *250 gpm

Question 22

the pumping apparatus used in this department are rated for capacity at ______psi

Answer 22

150

Question 23

under the system of pumper classifications, pumping apparatus is rated for 150 psi, which signifies that they are _______

Answer 23

class a pumpers

Question 24

pump operators attempts to supply more water than is being taken in via a supply, causing the supply line to collapse. to prevent this from occurring maintain an intake pressure of at least ____ psi

Answer 24

5

Question 25

full capacity of the pump with a pressure of 150 psi

Answer 25

1250 gpm

Question 26

7/10 capacity of the pump with a pressure of 200 psi

Answer 26

880 gpm

Question 27

1/2 capacity of the pump with a pressure of 250 psi

Answer 27

625 gpm

Question 28

for dual line relay, how many engines would you need for 1600 ft of hose

Answer 28

3 (1 engine at the source and 2 laying out)

Question 29

In dual line relay operations, pump pressures shall be calculated to give a minimum of ____gpm unless otherwise ordered

Answer 29

600 gpm

Question 30

for dual line relay, how many engines would you need for 2400 ft of hose

Answer 30

4 (1 engine at the source and 3 laying out)

Question 31

for heavy hookup utilize the _______or _______ banded hydrant

Answer 31

blue or yellow

Question 32

waterous recommends that the pump be transferred from pressure to volume if the required fire flow is greater than _____% of its rated capacity

Answer 32

70

Question 33

to prevent damage to the clappers that operate when transferring the pump from one stage to the other, the intake and discharge pressures shall be within ____psi of each other

Answer 33

50