Pumps Appendix A & B

Question 1

From the pump manual:

What is “the sum of all pressures in a given area” known as?

Answer 1

Absolute Pressure

Question 2

From the pump manual:

The pressure exerted by a given head of water acating against the discharge effort of a pump is defined as:

Answer 2

Back Pressure

Question 3

From the pump manual:

What is an appliance designed to completely occlude an opening such as a pumper’s discharge outlet, pumper’s intake opening, or a hydrant opening?

Answer 3

Blind Cap

Question 4

From the pump manual:

What does the phrase pump “runs away from the water” mean?

Answer 4

Cavitation

Question 5

From the pump manual:

What is the action of taking water from a body of water that is open to atmospheric pressure and lies below the intake level of the pump.

Answer 5

Drafting

Question 6

From the pump manual:

Dynamic Pressure is defined as:

Answer 6

The pressure exerted by a body or mass in movement

Question 7

From the pump manual:

What is the resistance to motion of moving objects or surfaces that touch?

Answer 7

Friction Loss

Question 8

From the pump manual:

In the pump manual what is the meaning of head?

Answer 8

Vertical distance between two horizontal levels in a liquid is known as head.

Question 9

From the pump manual:

The height in feet that a pump is located above the surface of a body of water, as in a draft operation is?

Answer 9

Lift

Question 10

From the pump manual:

What are the dimensions of the “hard sleeves” carried on D.C. FEMS apparatus?

Answer 10

6” hard sleeve, 10’ long

Question 11

From the pump manual:

The act of removing air from a pump and replacing it with water is called?

Answer 11

Prime

Question 12

From the pump manual:

What is the meaning of relative pressure?

Answer 12

Pressure that is present in a given area not including atmospheric pressure (PSIG)

Question 13

From the pump manual:

What is static pressure?

Answer 13

The pressure exerted by a motionless mass in equilibrium

Question 14

From the pump manual:

In fire service work this word generally means an area which contains less than 14.7 pounds per square inch.

Answer 14

Vacuum

Question 15

From the pump manual:

What is the principle used in the design for eductors?

Answer 15

Venturi

Question 16

From the pump manual:

What is the term used to describe the movement of water through a pipeline or hose that is suddenly stopped, therefore creating a pressure wave that will travel back through the line?

Answer 16

Water Hammer

Question 17

From the pump manual:

Normal atmospheric pressure at sea level is:

Answer 17

14.7 psi

Question 18

From the pump manual:

Mercury is __________ times heavier than water.

Answer 18

13.546

Question 19

From the pump manual:

One foot of water head equals how may psi?

Answer 19

0.434

Question 20

From the pump manual:

What does one cubic foot of water equal?

Answer 20

7.481 US gallons

Question 21

From the pump manual:

How much does one US Gallon of water weigh?

Answer 21

8.35 pounds

Question 22

From the pump manual:

Thirty inches of mercury equals _____ feet of water.

Answer 22

33.9

Question 23

From the pump manual:

When in a TWO PUMP OPERATION a pressure of ___ psi or ___ shall be used by the pumper until notified of conditions that would require a higher or lower pressure.

Answer 23

125 and 150

Question 24

From the pump manual:

You are the wagon driver of E-1 that is supplying a ladder pipe flowing 1000 gpm with a calculated pump pressure of 210 psiand a 2 1/2” attack line flowing 210 gpm with a calculated pump perssure of 70 psi. Youwould be required toset your maximum pump pressure to ___psi and gate down the otherline(s) to ___psi.

Answer 24

210 and 70

Question 25

From the pump manual:

___psi is the standard coeficient used for a relay formula

Answer 25

20 psi