11. Static water supply sources

Question 1

__ Is the difference in elevation between the surface of the static water supply and the center of the pump intake.

Answer 1

Lift

Question 2

$$$

For every 1000 feet of altitude, the atmospheric pressure decreases by approximately __ psi.

Answer 2

0.5 psi

Question 3

In the fire service, ___ ___ is defined as the greatest height to which any amount of water may be raised through an intake hose to the pump.

Answer 3

Maximum lift

Question 4

$$$

In most circumstances, maximum lift is approximately __ feet.

Answer 4

25 ft

Question 5

Maximum lift formula

L=

Answer 5

L= 1.13Hg

Question 6

Every fire pump that is operating properly should have a dependable lift of at least __ ft

Answer 6

14.7 ft

Question 7

Minimal water all around a barrel type strainer is generally __ ft

Answer 7

2 ft or 24 in

Question 8

Floating strainers may be used for water as shallow as _ ft

Answer 8

1 ft

Question 9

$$$

If an adequate draft cannot be established due to clogging at the strainer, ___ with tank water may help dislodge the debris’s.

Answer 9

Back flushing

Question 10

$$$

Pool formulas

Square

Round

Answer 10

Square

C=7.5 x L x W x D

Round

C=7.5 x pie x r^2 x D