Water Hydraulics

Question 1

Water Hammer is Magnified in_____ Hose

Answer 1

Large Diameter Hose(LDH)

Question 2

1 psi will Lift Water_______Feet

Answer 2

2.304 Feet

Question 3

Base Pressure for 1 Foot of Rise is_______psi

Answer 3

0.434 psi

Question 4

1 Cubic foot of Water Weighs ______lbs.

Answer 4

62.5 lbs

Question 5

1 Gallon of Water Weighs ______lbs.

Answer 5

8.33 lbs

Question 6

1 Cubic Foot of Water is____Gallons

Answer 6

7.5 Gallons

Question 7

Condensed Q Formula is___

Answer 7

Q²

Question 8

Raise and Lower Pump Discharge Pressure for Supply Line in Increments of_____ psi

Answer 8

25 psi

Question 9

Raise and Lower Pump Discharge Pressure in Increments of____ psi

Answer 9

10 psi

Question 10

At 212 Degrees F, a Cubic Foot of Water Expands Approximately______ Times its Original Volume

Answer 10

1700 Times

Question 11

Electric Prime Method Steps

Answer 11

1. Close All Discharge Valves, Drains, Pump Cooler and Intakes
2. Open Hydrant or Tank to Pump Valve, Pending on Water Source
3. Open Throttle to Approximatley 1000 rpm. Pull the Prime Handle and Discharge Gauge Should Rise when the Pump is Primed
4. Primer Motor Should NOT be Engaged More than 30 Seconds per Attempt
5. If the Pump Does NOT Prime in the Appropriate Amount of Time (30 Seconds), Check the Water Source for Leaks. Try to Prime Again

Question 12

Manually Priming Pump Steps

Answer 12

1. Put Engine in Pump Gear
2. Open Valve from the Booster Tank to the Pump
3. Remove the Cap from the Highest 2 1/2” Discharge Outlet
4. Open the 2 1/2” Valve Until Water Discharges
5. Close the 2 1/2” Valve
6. Pump Should be Primed

Question 13

Setting The Relief Valve Steps

Answer 13

1. Turn the Relief Valve Control All the Way In
2. Using the Hand Throttle, Increase the Pump Pressure to 5 psi Above the Highest Correct Discharge Pressure
3. Turn the Relief Valve to the “ON” Position
4. Turn the Relief Valve Control Out Slowly, Until the Pressure Gauge Shows a Drop in Pressure
5. Re-Adjust the Relief Valve Until the Pressure is 5 psi Above the Highest Correct Discharge Pressure
6. Using the Hand Throttle, Lower the Pump Discharge Pressure to the Proper Setting (5 psi Less Than the Relief Valve Setting)

Question 14

Pumping To Sprinklers/Standpipes at_____psi Plus Friction Loss, Plus____psi per Floor Above the___Floor

Answer 14

• 125 psi Plus Friction Loss
• 5 psi per Foor
• 1st Floor