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Hydraulics > Mental hydraulics > Flashcards

Mental hydraulics Flashcards

1
Q

NP for TFT nozzles

A

100 psi

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2
Q

FL for 2.5” handline with TFT

A

15 psi per 100’

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3
Q

A 1 1/4” smooth bore require what NP

A

50 psi

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4
Q

A 1 3/4” smooth bore requires what NP

A

80 psi

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5
Q

You would calculate a ladder pipe or ground monitor master stream, with a fog nozzle flowing 750 gpm, using what friction loss variables?

A

2 - 2 1/2s = 30psi per 100’
3 - 2 1/2s = 15psi per 100’
4” = 10 psi per 100’

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6
Q

gpm for 1” smooth bore

A

210 gpm

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7
Q

FL for ladder pipe is

You add ____ psi for fog _____ psi smooth bore to this FL number

A

60 psi (elevation, back/head pressure)
100 psi for fog
80 psi smooth bore

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8
Q

total FL for ladder pipe with smooth bore?

Fog tip?

A

140 psi

160 psi

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9
Q

gpm for 1 1/8” smooth bore

A

265 gpm

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10
Q

EP for 300’ ,1 3/4” hose to the 3rd floor

A

200 psi

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11
Q

gpm 1 3/4” smooth bore

A

750 gpm

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12
Q

FL in 100’ of 4” hose flowing 1000 gpm

A

20 psi per 100’

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13
Q

gpm 1 1/2” smooth bore

A

500 gpm

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14
Q

If you doubled the gpm what happens to the FL

A

quadruples

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15
Q

EP for 2 1/2” hose, 350’ long with a 1 1/8” tip

A

110 psi

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16
Q

EP for a ground monitor with 1000 gpm TFT, supplied by 3- 2 1/2” lines 300’ long

A

185 psi

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17
Q

600’ of 2 1/2” with a 1 1/8” tip, what is the EP

A

140 psi

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18
Q

EP if you have 2- 2 1/2” lines to a ground monitor with a 1 3/4” smooth bore and 400’ length

A

225 psi

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19
Q

2 1/2” hose line with a 1 1/4” tip 600’ long

A

170 psi

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20
Q

2- 2 1/2” lines to a ground monitor 200’ long with a 500 gpm TFT

A

165 psi

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21
Q

A 2 1/2” line, 700’ long with a 1 1/8” tip

A

155 psi

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22
Q

A 1 3/4” line, 300’ long with a TFT

A

190 psi

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23
Q

A 2 1/2” line 1000’ long with a 1” smooth bore

A

150 psi

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24
Q

A 2 1/2” line, 650’ long with a 1 1/4” smooth bore

A

190 psi

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25
Q

Pumping a ladder pipe with 300’ of 4” hose with a 2” smooth bore

A

200 psi

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26
Q

EP when pumping 2- 2 1/2” lines 400’ each to a ladder pipe with a 750 gpm fog nozzle

A

280 psi

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27
Q

EP for deck gun with a 500 gpm TFT

A

110 psi

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28
Q

100’ 1 3/4” stinger line

A

130 psi

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29
Q

EP for 700’ of 2 1/2” line with a TFT

A

205 psi

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30
Q

EP with a 400’ 2 1/2” line with a 1 1/4” tip

A

130 psi

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31
Q

200’ of 2 1/2” line with a 1” tip

A

70 psi

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32
Q

1- 2 1/2” hose line 100’ flowing 325 gpm

A

70 psi

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33
Q

400’, 1 3/4” hose line to the 6th floor

A

245 psi

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34
Q

2 1/2” hose line, 450’ long with a 1” straight bore nozzle

A

100 psi

35
Q

EP for a single 2 1/2” hose line, 450’ long, pumping 250 gpm with a TFT

A

175 psi

36
Q

EP for pumping a deck gun with a 1 3/4” smooth bore tip?

gpm?

A

100 psi

750 gpm

37
Q

EP pumping a deck gun with a 1000 gpm fog

A

130 psi

38
Q

EP for a ground monitor with a 1 3/4” smooth bore tip supplied by 2- 2 1/2” hose lines 300’ long

A

195 psi

39
Q

EP for a ladder pipe with a 750 gpm fog nozzle, supplied by 3- 2 1/2” hose lines, 200’ long

A

190 psi

40
Q

EP for ladder pipe with 1 1/2” smooth bore supplied by 2- 2 1/2” hose lines, 150’ long

A

180 psi

41
Q

FL for a dry standpipe appliance

A

150 psi

42
Q

EP for 1” booster line? gpm?

A

200 psi

38 gpm

43
Q

EP for 1 3/4 high rise pack is

A

120 psi

44
Q

What psi would you pump the high rise pack to 2nd floor

A

150 psi

120 pack, 25 appliance, 5 floor

45
Q

Max EP for large diameter hose

A

180 psi

46
Q

What do we test are 4” at

A

300 psi

47
Q

EP required when pumping to a standpipe with the high rise pack attached to the outlet on the 5th floor

A

165 psi

48
Q

EP for a portable monitor with 1 1/2” smooth bore supplied by 4”, 250’ long

A

120 psi

49
Q

EP for a portable monitor with 1 3/4” smooth bore, supplied by 3- 2 1/2” lines, 300’ long

A

150 psi

50
Q

EP when pumping to a standpipe with a high rise pack attached to outlet on 9th floor

A

185 psi

51
Q

EP for portable monitor with 750 gpm fog tip supplied by 4” hose, 350’ long

A

165 psi

52
Q

EP for portable monitor with a 2” smooth bore supplied by 4” hoseline, 500’ long

A

205 psi

53
Q

To convert 2- 2 1/2” siamese lines to a single 2 1/2” line, you divide one leg by?
convert 3- 2 1/2” lines divide by?

A

4

8

54
Q

How much does a cubic foot of water weigh

A

62.5 lbs

55
Q

weight of one gallon of water

A

8.35 lbs

56
Q

what psi to pump to sprinkler system

A

150 psi

57
Q

FL for ground monitor supplied by 2 lines,
1 1/2”
1 3/4”
2”

A

20 psi 500 gpm
30 psi 750 gpm
40 psi 1000gpm

58
Q

How many additional lines may be added if pressure between static and residual drops 0-10*

A

3 like lines

59
Q

additional lines added if pressure drops above 25*

A

0- already have more going out than coming in, need another water supply

60
Q

additonal lines added if pressure drops 11-15*

A

2 like lines

61
Q

additional lines added if pressure drops 16-25*

A

1 like line

62
Q

What are coefficients for: 1”, 1 1/2”, 1 3/4”, 2 1/2”, 4 ‘

A

150, 24, 15.5, 2, .2

63
Q

Pressure at the bottom of a column of water 1 foot high

A

.434 (half pound per foot per floor, 5 psi per floor)

64
Q

How many square inches in a square foot

A

144 square inches

65
Q

How many cubic inches in a cubic foot

A

1728 cubic inches

66
Q

Gallons in a cubic foot

A

7.48 gallons

67
Q

Distance in feet that 1 pound pressure will raise water

A

2.304 feet

68
Q

What is base pressure for ground monitor with fog tip

A

125 psi (100 NP + 25 appliance)

69
Q

Base pressure for ladder pipe with fog tip?

smooth bore?

A 
160 psi (60 FL + 100 NP)
140 psi (60 FL + 80 NP)
70
Q

Breakdown of pumping high rise pack to 2nd floor

A

150 psi (50NP + 70FL+ 25 appliance + 5 per floor)

71
Q

gpm of high rise nozzle and what is it

A

Metro One nozzle, 200 gpm constant gallonage

72
Q

FL for ground monitor with 4” supply line. 1 1/2”, 1 3/4”, 2”

A

5 psi
10 psi
20 psi

73
Q

FL for ground monitor supplied by 3- 2 1/2” hose lines:

1 1/2”, 1 3/4”, 2”

A

10 psi
15 psi
20 psi

74
Q

how many gallons of water in 100’ 1 3/4”

A

12 gallons per 100’

75
Q

how many gallons of water in 100’ 2 1/2”

A

25 gallons

76
Q

how many gallons in 100’ 4”

A

65 gallons

77
Q

160+160

A

320

78
Q

160+250+325

A

735

79
Q

265+160

A

425

80
Q

EP for 2 1/2” hose line with a 1 1/8” 300’ long

A

95 psi

81
Q

EP for 2 1/2” hose line 450’ long with a 11/4” tip?

A

150 psi

82
Q

250+210+160

A

620

83
Q

575+160

A

735

84
Q

410+265+750

A

1425

Hydraulics (1 decks)

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