Pumps Chapter 4 pp 11-20 Flashcards
From the Pump Manual
Using fewer streams, using lower pressure, and using streams with smaller tips are all ways of ________ to the total amount of water taken?
Reducing
From the Pump Manual
What information is invaluable to the water supply officer?
static pressure, residual pressure, and quanity of water flowing
From the Pump Manual
When not discharging any water during a draft, one inch of mercury equalls how much lift?
approximately 1 foot
From the Pump Manual
During a draft, your suction gauge is reading high, what is the primary cause for this to happen?
denotes a stoppage( either strainer or hard sleeve resting on bottom)
From the Pump Manual
When pumping multiple line, the pump discharge shall be set for which line?
the line with the greatest pressure dictates the pump pressure
From the Pump Manual
If there is no increase of pump pressure with the increase of engine speed, this would indicate that the pump has reached?
capacity for that pumping situation
From the Pump Manual
What is the minimum intake pressure?
5 pounds
From the Pump Manual
Who should the operator notify when the hydrant or the pump has reached capacity?
the officer in charge of the line being supplied
From the Pump Manual
The water temperature gauge should be kept between what degrees when operating the pump?
160 degrees and 200 degrees
From the Pump Manual
You are operating on a box alarm when the operator notifies you that the engine is starting to overheat, as the OIC can you turn off the emergency response lights?
yes
From the Pump Manual
What may the pump operator use as an emergency substitute in the event the pressure gauge becomes inoperative?
The tachometer
From the Pump Manual
true or false The discharge gate can be closed before lowering the discharge pressure when shutting down.
False
From the Pump Manual
When shifting to neutral on the automatic transmission, the speedometer needle pointer should reach near zero(0) in how many seconds?
3 to 5 seconds
From the Pump Manual
When shall the centrifugal pump be drained?
when there is a danger of freezing
From the Pump Manual
By keeping water in the pump, the ________ will stay lubricated and prevent from drying out?
pump packings
From the Pump Manual
Oil in the supply tank for the priming shall be checked daily and?
After each use
From the Pump Manual
When are class A pumpers capacity test conducted?
before new pumper is accepted, at least once a year, and after major repair to pump.
From the Pump Manual
Relaying of water from one engine to another when it is desirable to place one engine near the the fire and supply it with the water from another engine is know as?
Two Pump operation
From the Pump Manual
What is the pressure used by the supplying company for a two pump operation?
125 pounds(150) when pumping through a hydrant valve
From the Pump Manual
How many engine companies are needed for a dual lay of 1600 feet?
3 = 2 to lay out 800 feet dual lay and 1 at the hydrant or source
From the Pump Manual
The pump pressure shall be calculated to give a minimum of how many GPM when supplying a dual lay?
600 GPM
From the Pump Manual
When dual pumping a hydrant does the first engine have to shut down to complete the connection of the second engine to its intake?
the first engine does not have to shut down
From the Pump Manual
Which blind cap is removed and at what pounds should the hydrant or intake be restricted to?
the blind cap on the intake side and reduce intake to 5 pounds
From the Pump Manual
When would the method of auxilary priming of the centrifugal pump be used?
when the pumping apparatus at the draft site cannot obtain a draft
From the Pump Manual
After connecting the supply line from a pumper with water, the intake gate is opened and that line is charged at how many pounds?
80 pounds
From the Pump Manual
the pumper obtaining the draft should have the playpipe on the 2 1/2 discharge open and should have a discharge pressure of how many pounds?
50 pounds
From the Pump Manual
If water is lost immediately it is an indication of a leak on which side of the pump?
suction side
