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State Exam > State Exam notes 2 > Flashcards

State Exam notes 2 Flashcards

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
Q

The _______ is tight with little spray or shower effect

A

Solid stream

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26
Q

Are designed so that the volume of water flowing through the nozzle is gradually reduced until just before the orifice

A

Solid stream nozzles

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27
Q

The _______ determine the flow and reach of a solid stream

A

Nozzle pressure and size of the discharge orifice

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28
Q

Solid stream nozzles on handlines should generally be operated at

A

50 psi

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29
Q

Master stream appliances should be operated at

A

80 psi

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30
Q

The current formula for friction loss accounts for

A

Diameter of the hose, the volume of water flowing, and length of the hose

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31
Q

Each discharge equipped with a flowmeter must have a digital readout display mounted within ______ of the control valve for that discharge

A

6 inches

32
Q

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

A

Burst

33
Q

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

A

Flowmeter

34
Q

When a line is shut down, ______ accordingly or the standpipe system will attempt to flow excess through the remaining hoselines

A

Lower the pressure accordingly

35
Q

Must be constructed to be airtight and wear resistant

A

Valves

36
Q

The most common type of valve is the ______ that permits the full flow of water through a line with minimum friction loss

A

Ball type valve

37
Q

Modern version of this handle lock by rotating the handle in a clockwise direction

A

Quarter turn handle

38
Q

Gate valves are most commonly operated by a

A

Handwheel

39
Q

This will minimize the risk of damage caused by water hammer when large volumes of water are being moved

A

Slow acting valves

40
Q

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

A

Drain fittings

41
Q

Another purpose for pump and suction drains is to remove all the water from the system in climates where

A

Freezing occurs

42
Q

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

A

Three to ten seconds

43
Q

From a standpoint of design, the ______ are the simplest of all fire apparatus

A

Rotary type pump

44
Q

The total amount of water that can be pumped by a rotary gear pump depends on the _______ in the gears and the ______

A

Size of pockets and the speed of rotation

45
Q

This pump is classified as a non positive displacement pump as it does not pump a definite amount of water with each revolution

A

Centrifugal pump

46
Q

Are constructed with moveable elements that automatically compensate for wear, maintaining a tighter fit with closer clearances as the pump is used.

A

Rotary vane pumps

47
Q

The pump casing houses the impeller assembly, collects the water, and confines it in order to convert the velocity to pressure

A

Centrifugal pump

48
Q

The three main factors that influence a centrifugal fire pumps discharge pressure

A

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
Q

Pumps used in the fire service constructed with a single impeller are referred to as

A

Single stage centrifugal pump

50
Q

Have an impeller for each stage mounted in a single housing

A

Multistage centrifugal pumps

51
Q

The process of switching between pressure and volume is sometimes referred to as

A

Changeover

52
Q

The ______ only receives water for lubrication if the pump is full and operating under pressure

A

Packing

53
Q

Pumps powered by gasoline or Diesel engines independent of the vehicle drive engine are examples of

A

Auxiliary pumps

54
Q

In this arrangement, the pump is driven by a driveshaft connected to the

A

PTO

55
Q

Most fire departments operate pumpers that feature the pump mounted laterally across the frame behind the engine and transmission

A

Mid ship

56
Q

Based on NFPA 1901, a sufficient number of _____ discharge openings must be provided to flow the rated capacity of the pump.

A

2 1/2 in discharges

57
Q

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

A

2

58
Q

All valves should be designed and maintained so that they are easily operable at pressures of up to

A

250 psi

59
Q

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.

A

Three to ten seconds

60
Q

Pressure in a centrifugal pump may also be regulated by a mechanical or electronic governor that is pressure activated to adjust the engine throttle

A

Pressure governor

61
Q

Their are 4 types of primers

A

Oil less primers

Exhaust primers

Vacuum primers

Air primers

62
Q

The _____ is connected to the intake side of the pump and measures either a positive pressure or a vacuum

A

Master intake gauge

63
Q

The primary function of an _______ is to control the temperature of coolant in the apparatus engine during priming operations

A

Auxiliary cooling systems

64
Q

Making a fire pump operational commonly referred to as _______ begins after the apparatus is properly positioned and the parking brake has been set

A

Putting the pump into gear

65
Q

Water supply from the onboard ______ is the sole source of supply for many incidents

A

Water tank

66
Q

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

A

Forward hose lay

67
Q

Hose is laid from the fire to the water source

A

Reverse lay

68
Q

Add approximately ____ for each floor above the fire department connection that will have operating fire streams

A

5 psi

69
Q

A pumper located at the water source is generally referred to as the ______ and has the responsibility of filling water tenders

A

Fill site pumper

70
Q

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

A

1000 gpm

71
Q

To produce fire fighting foam,

A

Foam concentrate, water, air, must be educted or injected at correct ratios

72
Q

Hydrocarbon fuels

A

Crude oil, fuel, oil, gasoline, benezene, and kerosene

73
Q

Polar solvent fuels

A

Alcohol, acetone, ketones, and esters

74
Q

Are designed solely for use on hydrocarbon fuels and are not effective on polar solvent products regardless of the concentration that is applied.

A

Class B foams

75
Q

However, some foams intended for use on polar solvents may be used on hydrocarbon fuel products, but only under the direction of the manufacturer

A

Class B

State Exam (2 decks)

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