Hydraulics Flashcards

1
Q

IOP Highway

A

125psi

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2
Q

IOP Blitz

A

125 psi

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3
Q

IOP Blitz / Wye / one line

A

130 psi

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4
Q

IOP Blitz / Wye / two lines

A

150 psi

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5
Q

IOP FDC Sprinklers

A

150 psi

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6
Q

IOP if not listed

A

125 psi

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7
Q

Max time to pull primer

A

30 secs

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8
Q

Foam Elkhart PSI @ what GPM minimum hose, max hose

A

200 psi @ 95 gpm, 100, 300

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9
Q

Foam Angus PSI @ what GPM

A

150 psi @ 95 gpm, 150, 300

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10
Q

Per SBCoFD Driver operator Manual. What type of Class B foam is recommended for type 1 and what is the coverage

A

1% AFFF, covers 300 sq ft, 20’ diameter circle, 17’x17’ square

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11
Q

FL per 100 1 3/4 @ 60,95,125,150,200

A

6, 14, 24, 35, 62

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12
Q

FL per 100 2 1/2 @ 95,125,150,200,250

A

2, 3, 5, 8, 13, 18,

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13
Q

FL per 100 3 @ 95,125,150,200,250,300,400,500

A

1, 1, 2, 3, 5, 7, 13, 20

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14
Q

Gallons per cubic ft

A

7.5

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15
Q

Pounds per cubic ft

A

62.5

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16
Q

cubic inches per gallon

A

231

17
Q

volume of rectangle

A

LxWxH

18
Q

volume of cyliner

A

6 x D ²x H

19
Q

How many ft for relay pumping

A

700’ with extra 50 pulled for connections

20
Q

IOP for relay pumping

A

130

21
Q

simplest method for relay pumping

A

constant pressure method

22
Q

minimum psi reading on intake gauge for relay pumping

A

20 PSI

23
Q

main reason for the use of water

A

heat absorption

24
Q

Types of pressure and their definition.

A

ATMOSPHERIC - 14.7 PSI AT SEA LEVEL (ALTITUDE)
HEAD - HEIGHT OF WATER (ELEVATION)
STATIC - STORED POTENTIAL ENERGY
NORMAL OPERATING - PRESSURE IN THE DISTRIBUTION SYSTEM DURING NORMAL HOURS
RESIDUAL - WHAT’S LEFT AFTER OVERCOMING FRICTION LOSS
FLOW - FORWARD VELOCITY PRESSURE

25
Q

GPM Equation

A

29.71 x d2 x √ NP