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03. Pump Operating Procedure > Pumps Chapter 4 pp 01-10 > Flashcards

Pumps Chapter 4 pp 01-10 Flashcards

1
Q

From the Pump Manual:

What do the apparatus of the DCFEMS engine company consist of?

A

One seperate motorized pieces of equipment consisting of a centrifugal pump, hose, tools and appliances

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2
Q

From the Pump Manual:

The two primary functions of the engine company are?

A

Supplying attack lines and devices, or used as a water supply from a hydrant to supply the fire ground engine company

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3
Q

From the Pump Manual:

How does the initial engine company recieve water?

A

By means of a supply line

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4
Q

From the Pump Manual:

What does the initial engine company utilize until water supply has been established?

A

Water in the tank

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5
Q

From the Pump Manual:

What are the four main steps of operation?

A

Making pump ready,Dotting water, Pumping, Shutting down

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6
Q

From the Pump Manual:

Engine companies are to be kept ready for?

A

Operating from booster tank

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7
Q

From the Pump Manual:

Relief valves should be preset at?

A

160 psi

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8
Q

From the Pump Manual:

Drain valves on intakes are to be kept?

A

Open

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9
Q

From the Pump Manual:

Drain valves on discharges are to be kept?

A

Closed

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10
Q

From the Pump Manual:

Blind caps are to be kept?

A

Hand tight

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11
Q

From the Pump Manual:

How can the pump be tested for airtightness?

A

By preparing it for a draft with blind caps on suction intakes

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12
Q

From the Pump Manual:

What is the procedure for testing the pump for airtightness using a draft?

A
  1. run priming pump until 22 inches of Mercury, 2. close priming valve, 3. stop engine
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13
Q

From the Pump Manual:

How long will a pump in good condition hold a vacum?

A

Several minutes

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14
Q

From the Pump Manual:

Where are common points of leakage?

A

Pump packings and discharge gates

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15
Q

From the Pump Manual:

What is the acceptable leakage rate when testing a pump using a hydrant?

A

10-20 drops per minute operating at 100 psi

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16
Q

From the Pump Manual:

Always open the hydrant fully to insure?

A

Getting the full supply of water and to insure that the drain valve of the hydrant is closed

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17
Q

From the Pump Manual:

The most desirable intakes to use when operating from a draft are those?

A

On the sides

18
Q

From the Pump Manual:

The hard sleeve assembly consists of?

A

Sleeves, strainer and rope

19
Q

From the Pump Manual:

Where must the hard sleeves be hammered?

A

On either side of the connections and at the pump intake

20
Q

From the Pump Manual:

Why must hard sleeves be hammered?

A

A slight airleak may prevent getting water

21
Q

From the Pump Manual:

How deep should the hard sleeve assemby be submurged?

A

At least 18 inches

22
Q

From the Pump Manual:

What should be used to prevent the formation of whirlpools?

A

Baffles

23
Q

From the Pump Manual:

When operating from a draft what position should the transfer valve be in?

A

Volume

24
Q

From the Pump Manual:

What shall be determined prior to opening discharge gates?

A

Hydrant static pressure

25
Q

From the Pump Manual:

Direct Drive refers to:

A

one to one gear ratio of the drive shaft to pump transmission

26
Q

From the Pump Manual:

How long should it take to obtain a prime?

A

Less than 45 seconds

27
Q

From the Pump Manual:

Why must water not be allowed to churn without any being discharged?

A

May result in a loss of prime

28
Q

From the Pump Manual:

When should the transfer valve be in pressure position?

A

When supplying under 500 gpm

29
Q

From the Pump Manual:

At what pressure is the relief valve preset when operating from the booster tank?

A

150 psi

30
Q

From the Pump Manual:

At what pressure is the relief valve preset when operating from the booster tank?

A

125 psi

31
Q

From the Pump Manual:

How are drain valves on gated siamese/trimese to be carried?

A

In the open position

32
Q

From the Pump Manual:

What is the most convinient way to prevent the pump from overheating?

A

Open tank fill valve or drain valve on discharge gate

33
Q

From the Pump Manual:

What does the suction gauge show?

A

Hydrant or intake pressure

34
Q

From the Pump Manual:

How is static pressure obtained?

A

Reading the suction gauge after the hydrant has been opened but before water is discharged

35
Q

From the Pump Manual:

How is residual pressure obtained?

A

Reading the suction gauge after the gate is opened and desired pressure is obtained

36
Q

From the Pump Manual:

How is pressure drop determined?

A

subtracting the residual pressure from static pressure (PD=SP-RP)

37
Q

From the Pump Manual:

How is the percentage drop calculated?

A

By dividing the drop in intake pressure by the static pressure

38
Q

From the Pump Manual:

At what percentage drops can three times the amount of water be flown?

A

<10%

39
Q

From the Pump Manual:

At what percentage drops can two times the amount of water be flown?

A

> 10%-15%<

40
Q

From the Pump Manual:

At what percentage drops can an additional amount of water be flown?

A

> 15%-25%<

41
Q

From the Pump Manual:

What is the minimum amount of pressure required in the soft sleeve?

A

5 psi

03. Pump Operating Procedure (10 decks)

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