Chapter 11 Flashcards

1
Q

The difference in elevation between the surface of the static water supply and the center of the pump intake is called?

A

Lift

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2
Q

Theoretical scientific height that a column of water may be lifted by atmospheric pressure and a true vacuum at sea level this height is 33.9 ft the height will decrease as elevation increases is called?

A

Theoretical lift

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3
Q

Maximum height to which any amount of water may be raised through a hard suction hose to a pump determined by the ability of the pump to create a vacuum is called?

A

Maximum lift

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4
Q

Maximum lift is approximately how many feet?

A

25

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5
Q

What is the formula for determining maximum lift?

A

L=1.13 Hg

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6
Q

Height a column of water maybe lifted and sufficient quantity to provide a reliable fireflow lift may be raised through a hard suction hose to a pump taking into consideration the atmospheric pressure and the friction loss within the hard section hose. This lift is usually considered to be 14.7 ft is called?

A

Dependable lift

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7
Q

All fire department pumping apparatus are rated when drafting with a minimum lift _________feet from the center of the pump intake to the surface of water through _________ feet of hard intake hose?

A

10 feet

20 feet

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8
Q

Floating strainers may be used for water as shallow as _____feet?

A

One

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9
Q

Low level strainers may draw water as shallow as __ to ___ inches?

A

1 to 2

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10
Q

Cleaning a fire pump or piping by flowing water through it in the opposite direction of normal flow is called?

A

Back flushing

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11
Q

A tool for boring (drilling) holes in floors and other solid barriers including ice is called a?

A

Auger

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12
Q

The formula for square/rectangular pool capacity is?

A

C= 7.5 x L x W x D

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13
Q

Cistern’s, private water storage tanks, ground reservoirs, swimming pools are all examples of what type of static water supply?

A

Artificial

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