Pumps Appendix A & B Flashcards
From the pump manual:
What is “the sum of all pressures in a given area” known as?
Absolute Pressure
From the pump manual:
The pressure exerted by a given head of water acating against the discharge effort of a pump is defined as:
Back Pressure
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?
Blind Cap
From the pump manual:
What does the phrase pump “runs away from the water” mean?
Cavitation
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.
Drafting
From the pump manual:
Dynamic Pressure is defined as:
The pressure exerted by a body or mass in movement
From the pump manual:
What is the resistance to motion of moving objects or surfaces that touch?
Friction Loss
From the pump manual:
In the pump manual what is the meaning of head?
Vertical distance between two horizontal levels in a liquid is known as head.
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?
Lift
From the pump manual:
What are the dimensions of the “hard sleeves” carried on D.C. FEMS apparatus?
6” hard sleeve, 10’ long
From the pump manual:
The act of removing air from a pump and replacing it with water is called?
Prime
From the pump manual:
What is the meaning of relative pressure?
Pressure that is present in a given area not including atmospheric pressure (PSIG)
From the pump manual:
What is static pressure?
The pressure exerted by a motionless mass in equilibrium
From the pump manual:
In fire service work this word generally means an area which contains less than 14.7 pounds per square inch.
Vacuum
From the pump manual:
What is the principle used in the design for eductors?
Venturi
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?
Water Hammer
From the pump manual:
Normal atmospheric pressure at sea level is:
14.7 psi
From the pump manual:
Mercury is __________ times heavier than water.
13.546
From the pump manual:
One foot of water head equals how may psi?
0.434
From the pump manual:
What does one cubic foot of water equal?
7.481 US gallons
From the pump manual:
How much does one US Gallon of water weigh?
8.35 pounds
From the pump manual:
Thirty inches of mercury equals _____ feet of water.
33.9
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.
125 and 150
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.
210 and 70
From the pump manual:
___psi is the standard coeficient used for a relay formula
20 psi
