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State Exam notes 2 Flashcards

(75 cards)

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1
Q

The main purpose of a fire department pumper is to

A

Provide adequate water pressure for effective fire streams

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2
Q

NFPA 1901 standard for automotive fire apparatus, contains the requirements of pumper design. The standard specifies a minimum pump capacity of _____ and a water tank capacity of at least ____.

A

750 gpm and 300 gal tank

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3
Q

Specified the minimum portable equipment that must be carried on all fire department pumpers.

A

NFPA 1901

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4
Q

Many fire departments including municipal, airport, wildland, and those serving industrial facilities operate pumpers are capable of discharging foam on

A

Class A or class B fires

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5
Q

An _______ designed by the AHJ for specific apparatus will ensure that each driver operator conducts a uniform and complete inspection by using the checklist as a guide

A

Inspection checklist

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6
Q

Whenever the apparatus or a piece of equipment onboard is found broken, defective, or in need of any type of repair, the driver operator should follow the established policy of the AHJ for

A

Documenting, reporting, and following up on the status of the repair.

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7
Q

In a warranty claim, these records may be needed to document that required maintenance was performed

A

Apparatus maintenance and inspection records

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8
Q

The most common place for a collision to occur is at an

A

Intersection

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9
Q

Generally account for a significant percentage of all damage repair costs.

A

Backing accidents

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10
Q

Makes an apparatus more difficult to stop and can cause difficulties when braking.

A

Excessive speed

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11
Q

Fire departments must ensure that all driver operators candidates complete a ________ before they are allowed to drive fire apparatus under emergency conditions

A

Thorough training program

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12
Q

This is the primary reason for the daily pretrip inspection whereby mechanical failures can be

A

Minimized and personnel and public safety enhanced

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13
Q

Apparatus that have been built by members of the fire department or local mechanics and custom built, overloaded vehicles are more likely to have design problems

A

Homebuilt apparatus

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14
Q

When driving the vehicle under conditions of reduced visibility, speed must be reduced appropriately. A ______ may be needed to walk ahead of the apparatus to help avoid obstacles such as logs, stumps, rocks, ditches, and low hanging branches.

A

Spotter

Wildland fire apparatus

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15
Q

When the apparatus is operated in a stationary position, it should be placed in an area that affords ________ from heat and flames

A

Maximum protection

Wildland fire apparatus

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16
Q

The vehicle should be positioned facing the direction of an exit path, with its front wheels straight and always parked with its wheels chocked and the emergency brake engaged

A

Wildland fire apparatus

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17
Q

Vehicles should not be driven over ______ unless the weight of the apparatus is known to be within the capacity of the structure

A

Bridges

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18
Q

Driver operator should not _____ streams with a vehicle unless it has been specifically designed to operate in such conditions

A

Ford

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19
Q

For apparatus capable of mounting mobile fire attack, during these operating hoselines should be kept _____

A

Short in order to facilitate movement

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20
Q

The difference between static and normal operating pressure is

A

The friction caused by water flowing through the pipes, valves, and fittings of the system

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21
Q

Is the portion of the total available pressure not used to overcome friction loss or gravity while forcing water through pipes, fittings, hoses, or adapters.

A

Residual pressure

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22
Q

While water is flowing from a discharging opening, the forward velocity pressure is considered

A

Flow pressure

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23
Q

When the nozzle is above the level of the pump there is

A

Pressure loss

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24
Q

When the nozzle is below the pump, there is

A

Pressure gain

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25
The _______ is tight with little spray or shower effect
Solid stream
26
Are designed so that the volume of water flowing through the nozzle is gradually reduced until just before the orifice
Solid stream nozzles
27
The _______ determine the flow and reach of a solid stream
Nozzle pressure and size of the discharge orifice
28
Solid stream nozzles on handlines should generally be operated at
50 psi
29
Master stream appliances should be operated at
80 psi
30
The current formula for friction loss accounts for
Diameter of the hose, the volume of water flowing, and length of the hose
31
Each discharge equipped with a flowmeter must have a digital readout display mounted within ______ of the control valve for that discharge
6 inches
32
A hoseline may have _____ if an attack team member sends a message saying that the volume of water at the nozzle has suddenly decreased without a corresponding change at he flowmeter
Burst
33
When engaged in a relay pumping operation, the driver operator may feed a supply line without having to know the volume of water flowing from receiving pumper
Flowmeter
34
When a line is shut down, ______ accordingly or the standpipe system will attempt to flow excess through the remaining hoselines
Lower the pressure accordingly
35
Must be constructed to be airtight and wear resistant
Valves
36
The most common type of valve is the ______ that permits the full flow of water through a line with minimum friction loss
Ball type valve
37
Modern version of this handle lock by rotating the handle in a clockwise direction
Quarter turn handle
38
Gate valves are most commonly operated by a
Handwheel
39
This will minimize the risk of damage caused by water hammer when large volumes of water are being moved
Slow acting valves
40
On_____, drain valves provide a way for the driver operator to drain the hose side of the valve after the discharge valve and nozzle are both closed
Drain fittings
41
Another purpose for pump and suction drains is to remove all the water from the system in climates where
Freezing occurs
42
NFPA 1901 requires some type of pressure control device to be part of any fire apparatus pumping system. This device must operate within ______ after the discharge pressure rises and restricts the pressure from exceeding 30 psi above the set level
Three to ten seconds
43
From a standpoint of design, the ______ are the simplest of all fire apparatus
Rotary type pump
44
The total amount of water that can be pumped by a rotary gear pump depends on the _______ in the gears and the ______
Size of pockets and the speed of rotation
45
This pump is classified as a non positive displacement pump as it does not pump a definite amount of water with each revolution
Centrifugal pump
46
Are constructed with moveable elements that automatically compensate for wear, maintaining a tighter fit with closer clearances as the pump is used.
Rotary vane pumps
47
The pump casing houses the impeller assembly, collects the water, and confines it in order to convert the velocity to pressure
Centrifugal pump
48
The three main factors that influence a centrifugal fire pumps discharge pressure
Amount of water being discharged Speed at which the impeller is turning Pressure of water when it enters the pump from a pressurized source
49
Pumps used in the fire service constructed with a single impeller are referred to as
Single stage centrifugal pump
50
Have an impeller for each stage mounted in a single housing
Multistage centrifugal pumps
51
The process of switching between pressure and volume is sometimes referred to as
Changeover
52
The ______ only receives water for lubrication if the pump is full and operating under pressure
Packing
53
Pumps powered by gasoline or Diesel engines independent of the vehicle drive engine are examples of
Auxiliary pumps
54
In this arrangement, the pump is driven by a driveshaft connected to the
PTO
55
Most fire departments operate pumpers that feature the pump mounted laterally across the frame behind the engine and transmission
Mid ship
56
Based on NFPA 1901, a sufficient number of _____ discharge openings must be provided to flow the rated capacity of the pump.
2 1/2 in discharges
57
As a minimum, all fire apparatus with a rated pump capacity of 750 gpm or greater must be equipped with at least _____ 2 1/2 in discharges
2
58
All valves should be designed and maintained so that they are easily operable at pressures of up to
250 psi
59
NFPA 1901 requires some type of pressure control device to be part of any fire apparatus pumping system. This device must operate within ________ after the discharge pressure rises and restricts the pressure from exceeding above the level.
Three to ten seconds
60
Pressure in a centrifugal pump may also be regulated by a mechanical or electronic governor that is pressure activated to adjust the engine throttle
Pressure governor
61
Their are 4 types of primers
Oil less primers Exhaust primers Vacuum primers Air primers
62
The _____ is connected to the intake side of the pump and measures either a positive pressure or a vacuum
Master intake gauge
63
The primary function of an _______ is to control the temperature of coolant in the apparatus engine during priming operations
Auxiliary cooling systems
64
Making a fire pump operational commonly referred to as _______ begins after the apparatus is properly positioned and the parking brake has been set
Putting the pump into gear
65
Water supply from the onboard ______ is the sole source of supply for many incidents
Water tank
66
A _____ consists of stopping at the hydrant, dropping the end of one or more supply lines at the hydrant, and then proceeding to the fire location
Forward hose lay
67
Hose is laid from the fire to the water source
Reverse lay
68
Add approximately ____ for each floor above the fire department connection that will have operating fire streams
5 psi
69
A pumper located at the water source is generally referred to as the ______ and has the responsibility of filling water tenders
Fill site pumper
70
In accordance with NFPA 1901, water tenders must be designed to be filled at a rate of at least ______ so that the pumpers assigned to the fill site must be rated at that capacity or greater
1000 gpm
71
To produce fire fighting foam,
Foam concentrate, water, air, must be educted or injected at correct ratios
72
Hydrocarbon fuels
Crude oil, fuel, oil, gasoline, benezene, and kerosene
73
Polar solvent fuels
Alcohol, acetone, ketones, and esters
74
Are designed solely for use on hydrocarbon fuels and are not effective on polar solvent products regardless of the concentration that is applied.
Class B foams
75
However, some foams intended for use on polar solvents may be used on hydrocarbon fuel products, but only under the direction of the manufacturer
Class B

State Exam (2 decks)

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