HYDRAULIC MANUAL

Question 1

50 feet of 1.88 hose has how many gallons of water

Answer 1

7.20 gallons

Question 2

50 feet of 2.5 hose has how many gallons of water

Answer 2

12.74 gallons

Question 3

50 feet of 3” hose has how many gallons of water

Answer 3

18.35 gallons

Question 4

100 feet of 4 inch hose has how many gallons of water

Answer 4

65.25 gallons

Question 5

100 feet of 5 inch hose has how many gallons of water

Answer 5

101.94 gallons

Question 6

Whats the formula for Nozzle Reaction on a SB

Answer 6

1.57 x d2 x NP

Question 7

Whats the formula for Nozzle Reaction on Fog

Answer 7

.0505 x Q √NP

Question 8

Formula for GPM?

Answer 8

GPM= 29.7 x d2 x √NP

Question 9

Cubic ft in Gallons..
Determining volume for a rectangular or square shaped container

Answer 9

H x W x D x 7.5 gallons

Question 10

Cubic ft in pounds..

Answer 10

(H x W x D) 62.5

Question 11

One gallon of fresh water weighs?

Answer 11

8.33 pounds

Question 12

One cubic foot of fresh water weighs?

Answer 12

62.5 pounds

Question 13

One cubic foot contains?

Answer 13

7.5 gallons
1728 cubic inches

Question 14

One gallon contains?

Answer 14

231 cubic inches
8.33 pounds

Question 15

√80?

Answer 15

8.94

Question 16

√50

Answer 16

7.07

Question 17

This type of pump takes advantage of incoming pressure, water enters the eye of the pump then travels through one or more impellers

Answer 17

Centrifugal pumps

Question 18

The rate at which water travels from an orifice and can be measured using a pitot gauge

Answer 18

Discharge velocity

Question 19

Loss of pressure created by the turbulence of water moving against the interior walls, couplings and connections of the hose or pipe?

Answer 19

Friction Loss

Question 20

Water pressure due to elevation

Answer 20

Head pressure

Question 21

The velocity pressure at which water is discharged from the nozzle

Answer 21

Nozzle pressure

Question 22

Counterforce directed against a person or a device holding a nozzle by the velocity of water being discharged

Answer 22

Nozzle reaction

Question 23

Small positive displacement pump used to evacuate air from a centrifugal pump housing allowing the pump to receive water.

Answer 23

Primer pumps

Question 24

Appliance that combined 2 or more lines in to one

Answer 24

Siamese

Question 25

The force created by the rapid deceleration of water.

Answer 25

Water hammer

Question 26

Cellar nozzle are often used on basement and attic fires, what are the size orifice, gpm and psi

Answer 26

2 1/2’’ distributer nozzle 250gpm 100 psi
1 1/2’’ distributer 95gpm 50psi

2 1/2’’ cellar nozzle 350gpm 100psi
1 1/2’’ cellar nozzle 160gpm 100psi