Chp 8 - 15 Flashcards
Mounted at the top. Only a small portion of device extends into the waterway.
Paddle wheel
Detects water, movement in the discharge piping. The greater the flow, the more spring is bent.
Spring probe
Self priming pump that utilizes a piston or interlocking rotors to move a given amount of fluid through the pump
A) engine compression brakes
B) slack adjusters
C) positive displacement pump
D) transfer valve
Positive displacement pump
Using one or more reciprocating pistons to force water from the pump chambers
A) rotary gear
B) piston pump
C) transfer valve
D) slack adjusters
Piston pump
Veined circulating member of the centrifugal pump
Impeller
Intake orface at the center of the central fuel pump impeller?
A) Spring probe
B) Rotary gear
C) Impeller eye
D) Transfer valve
C) Impeller eye
Spiral, divergent chamber of a centrifugal pump.
Volute
Automatic valve, that permits liquid to flow in only One Direction.
A) Engine compression brakes
B) Positive displacement pump
C) back pressure
D) check valve
Check valve
A device used to exhaust the air from inside a centrifugal pump and the attached hard suction.
A) Centrifugal
B) Priming Device
C) Impeller
D) Exhaust primer
B) Priming device
Materials that are capable of being mixed, at all proportions
Miscible
Solid or flexible to use to transfer foam Concentrate from a storage container to an in-line educator
Pick up tube
Method of proportioning foam that uses external pump or head pressure to force foam concentrate into the fire stream at the correct ratio for the flow desired
A) Batch mixing
B) Eduction
C) Injection
D) Jet ratio controller
C) Injection
Production of foam solution by adding an appropriate amount of foam concentrate to a water tank before application?
A) Batch mixing
B) Injection
C) Eduction
4) Jet controlled
A) Batch mixing
Mixing premeasured, proportions of water and foam Concentrate in a container.
Pre-mixing
Chemical that lowers the surface tension of liquid allows water to spread more rapidly over the surface
Surfactant
To cause or undergo a chemical process of decomposition involving the splitting of a bond, and the addition of the element of water
Hydrolyze
Ability of a foam blanket to resist direct flame impingement, such as would be evident in partially extinguished petroleum fire
Burnback resistance
Concentrate that combines the qualities of fluoprotein foam with those of aqueous film forming foam
Film forming fluoprotein foam
Pressure loss or gain created by changes in elevation between the nozzle and pump
A) positive displacement pump
B) back pressure
C) load monitor
D) pump discharge pressure
Back pressure
High expansion foam generator that uses a fan to inject the air in to the foam solution as it passes through the unit
Mechanical blower
Instrument that indicates the rotational speed of a shaft and revolutions per minute
A) refractometer
B) tachometer
Tachometer
Used to measure the amount of foam concentrate in the solution
Refractometer
The two tests that are performed by the manufacturer
Road and hydrostatic test
Which statement regarding voltmeters is correct
The volt meter reads the battery voltage
Proper _______ is one objective of good maintenance
Lubrication
One method of performing an apparatus pre-trip inspection
Walk around method
The engine oil gauge indicates the
Pressure of oil being delivered