# Hydraulics Section

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1. Nozzle Pressure (NP) + Total Friction Loss (TFL) =
Pump presure
2. The Friction Loss Rate (FLR) of fire hose can be determined by the formula
FLR = 2Q2. In this formula, Q = _______.
3)
gpm/100
3. List in order of importance, the facts that a pump operator needs in order to determine Pump Pressure (PP):
• Nozzle pressure
• Gpm Flow or tip size
• size of hose
• length of hose
• elevation +/ -
• appliance loss
• sprinkler system loss or stand pipe loss
4. The Nozzle Pressure for a hand line with a smooth bore tip is _______.
50 psi
5. The Nozzle Pressure for deluge sets, monitor nozzles or a water tower equipped with a smooth bore tip is ______.
80psi
6. The Nozzle Pressure for all adjustable or fog nozzles is ______.
100psi
7. The Nozzle Pressure for foam application is ______.
100psi
8. When pumping to a hose line used for an interior attack and the gpm setting is not known, you should use ______ as your maximum gpm flow.
150gpm
9. When pumping to a hose line used for an exterior attack and the gpm setting is not known, you should use ______ as your maximum gpm flow.
200gpm
10. When the gpm setting and use of the attack line are both unknown, you should pump to the ________ for that nozzle.
the highest gpm flow
11. The formula 30d2√NP is used to calculate ________________.
gpm flow
12. 12) The square root used for calculating the gpm of a hand held straight tip is _____ and that number is based on _____ psi.
7 at 50 psi hand line
13. The square root used for calculating the gpm of a straight tip used on a hose control or monitor is ____ and that number is based on _____ psi.
9 at 80psi
14. 14) GPM flows for handheld smooth bore tip ¼" to 3/8" are rounded to the nearest ____ gpm.
1gpm
15. GPM flows for handheld smooth bore tips ½" to 1 1/8" are rounded to the nearest ___ gpm.
10gpm
16. GPM flows for smooth bore tips used on appliances 1 ¼" to 2" are rounded to the nearest _____ gpm.
100gpm
17. With a given flow through fire hose the smaller the diameter of the hose, the _____ amount of friction loss.
greater amount of friction loss
18. 18) The maximum Pump Pressure for synthetic double jacket fire hose (attack line) is ______ psi
300psi
19. The maximum Pump Pressure for 2 ½" high pressure double jacket fire hose is _____ psi.
600psi
20. The Equivalent Flow (EF) conversion for ¾" hose is ____;
25
21. The Equivalent Flow (EF) conversion for 1"hose ?
9
22. The Equivalent Flow (EF) conversion for 1 1/2"hose?
3.6
23. The Equivalent Flow (EF) conversion for 1 3/4" hose?
2
24. The Equivalent Flow (EF) conversion for 3" hose is?
.67
25. The Equivalent Flow (EF) conversion for 3 1/2" hose ?
.4
26. The Equivalent Flow (EF) conversion for 4" hose?
.25
27. After the EF is calculated, it should be rounded off to the nearest _______.
10gpm
28. Length (L) is calculated by dividing the total length of hose in the lay by______
100
29. Water weighs _____ per gallon
8.35ponds per gallon
30. Water weighs _8.35____ per gallon and requires _____ psi to raise this amount 1 foot?
.434 or .5
31. The number used to calculate Gravity Gain or Gravity Loss on the fire ground is ___ psi.
.5psi
32. Gravity Gain (GG) is ___________ from the Pump Pressure
SUBTRACT pressure
33. Gravity Loss (GL) is ___________ to pump pressure?
34. The initial Pump Pressure for all hand lines is _______ + ________?
NOZZLE PRESSURE +GL OR - GG
35. The initial Pump Pressure for elevated master streams is _________ psi.
150PSI
36. The initial Pump Pressure for Sprinkler and Standpipe Systems is ________ psi
150 PSI
37. Convert the following fractions into decimals
¼ =______
.25
38. Convert the following fractions into decimals

¾ = ______
0.75
39. 1/8 = ______
0.125
40. Convert the following fractions into decimals
3/8 = ______
0.375
41. Convert the following fractions into decimals
5/8 = ______
0.625
42. Convert the following fractions into decimals
7/8 = ______
0.875
43. Convert the following fractions into decimals
:1 1/8 = ___
1.125
44. Convert the following fractions into decimals
1 3/8 = ___
1.375
45. Solve the following problems

30 x 1 3/8 = ______
41.25
46. Solve the following problems

30 x 1 ¼ x 7 = ____
262.5
47. Solve the following problems
30 x 1 ½ x 9 =______
405
48. Solve the following problems

30 x 1 ¾ x 9 = _______
472.5
49. Solve the following problems

210 x .67 = ______
140.7
50. Solve the following problems

600 x .4 = ______
240
51. Solve the following problems

1100 x .5 = ______
550
52. Solve the following problems

30 x 3.6= ______
108

### Card Set Information

 Author: koollyT ID: 257097 Filename: Hydraulics Section Updated: 2014-01-17 20:49:59 Tags: 2014 engineer exam Folders: Description: Hydraulics Section Show Answers:

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