CHAPTER 2 Flashcards by bobby mckenzie

NEWER APPARATUS MAY BE EQUIPPED WITH ELECTRICAL____ THAT ARE INTENDED TO PREVENT AN ______OF A VEHICLE ELECTRICAL GENERATION SYSTEM

LOAD MANAGEMENT SYSTEM/ OVERLOAD

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an inspection where certain system or component of an apparatus is operated to ensure that it is functioning properly

FUNCTIONAL CHECK

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What NFPA requires that driver engineer be skilled in the performance of certain maintenance tasks

NFPA 1002

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it is never acceptable to mix ____tire with ___-___ tire

radial/bias-ply

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old tires with generous ___depth have been the cause of blowout that led to Serious accident and death

tread

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the correct tire for any commercial vehicle is determined after the vehicle’s

specifications are final

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Load management system sometimes incorporate a_____ and _____ into the same device

load sequencer and load monitor

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the maximum tire pressure imprinted on the exterior of each tire is not the recommended . set and maintain the tire pressure at the manufacturers pressure recommendation for the correct ___ ___ , _____ _______ and measured in service axle loads

operating pressure / tire size, type, load range

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anti lock braking system reduce the possibility of an apparatus going into

slide , jackknife, are spin during heavy braking.

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THE MANUFACTURER DETERMINES THE _____AS THE MAXIMUM AMOUNT WEIGHT AT WHICH A VEHICLE CAN BE SAFELY OPERATED ON ROADWAYS IN IDEAL CONDITIONS

GROSS VEHICLE WEIGHT RATE

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Device that watches an electrical system for added Load that may threaten to overload the system

LOAD MONITOR

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DRIVER SHOULD UNDERSTAND ALL THE INFORMATION IMPRINTED ON THE ____OF A TRUCK TIRE

SIDEWALL

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When a overload condition occurs,the load monitor shut down the less important electrical equipment to prevent the overload

LOAD SHEDDING

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the component used to push on the internal clutch fingers connected to the clutch pedal and when activated disengage the clutch from the engine

THROW OUT BEARING

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The amount of travel the clutch has before it begins to disengage the engine from the transmission

Free play (free travel)

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_____weight is the weight of an empty Fire Apparatus fresh off the assembly line with no tools,water,equipment, or passengers

curb

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Insufficient free play will cause clutch

1: SLIP
2: OVERHEAT
3: WEAR OUT

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the manufacturer determines the ______maximum weight which a vehicle can be safely operated on roadways in ideal condition

GVWR

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Steering wheel play should be

No more than 10° in both directions.

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ABS brakes also assist the driver operator in keeping the apparatus in a ____ ________during heavy or emergency braking. ______ __________ does not necessary provide a faster stop, but it greatly enhance a control stop.

STRAIGHT TRAJECTOTY / ABS TECHNOLOGY

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20” steering wheel may have?

2” play

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device use in an air brake system that connect between the activation pads and the brake pads that compensate for brake pad wear

slack adjuster

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the driver / operator should conduct an____( required by many state and provinces before road operation of a commercial vehicle)as defined by the AHJ inspection and maintenance schedule

air brake test

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Air-actuated braking system

1: Use compressed air to hold off spring break (parking brake)
2: Applies air pressure to a service brake for vehicle stopping.
3: Used by most modern fire department.

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How often should apparatus brakes be thoroughly tested

At least annually

Once the entire exterior of the apparatus has been inspected, the in-cab checks have been completed, and the airbrake testing is complete, the driver should shut off the engine prepare to perform checks and routine preventive maintenance in the ______ _________

ENGINE COMPARTMENT

For inspection of Vehicles equipped with a tilt cab ensure that the control operates _____ without binding and that the hold-open device is latch. in addition, check cab latches for security of mounting, lubrication, and accumulation of metal fillings,n the mechanism.

FREELY

SAE #

Indicates the viscosity of the oil

to select the proper lubricant, consider the_____ of the unit the____ of the lubricant and the ______recommendations

requirements,characteristics,manufacturer's

Essential characteristics of oil are

1: corrosion protection 2: foaming 3: sludging and carbon build up

the manufacturer's manual will recommend the____numbers for engine oil

Society of Automotive Engineers

Systematic maintenance procedures should specify:

1: maintenance procedures 2: when they are performed 3: Who is responsible for conducting the maintenance.

operate the pump Handle on the lubrication gun until___is felt

resistant

Driver should perform______/_____ to ensure that all work has been properly completed in accordance with the manufacturer's guidelines AHJ

POST-MAINTENANCE/REPAIR INSPECTION

most Automotive batteries contain

sulfuric acid and Lead

Standards for testing D/E are found in?

NFPA 1002

NFPA 1901 braking test requires that new apparatus brought to a complete stop from the speed of 20 mph in the distance not to exceed?

35 feet

On a apparatus with air brakes.NFPA require the air pressure to build up sufficient air level within

60 seconds of starting

Apparatus with air brakes are to be equipped with an air protection valve.That prevents the air horn from operating when the pressure in the reservoir drops below

80psi

Except when in a contaminated area. When should you shut down the engine after a full load operation?

Wait 3 to 5 minutes 20 I'll temperature to stabilize.

The NFPA brake standard requires that parking brake hold the apparatus?

In place on a grade of up to 20%

Stopping distance should not exceed 20'

When the brakes are applied @ 5 mph

Air brakes respond slower than Hydraulic brakes

True

What are two proactive measures that can ensure that a piece of fire apparatus is maintained in the highest state of readiness

1• Preventive maintenance program | 2• Routine maintenance checks

The goal of preventive maintenance is to

Eliminate unexpected and catastrophic failures that may endanger fire fighters and the general public

Which NFPA outlines methods for brake tests

NFPA 1911

What are the two types of inspection conducted during a walk around inspection

1• operational readiness inspection(required by NFPA standards and AHJ) 2• Vehicle pretrip road worthiness inspection

Many serious fire apparatus collisions have been caused by

Faulty brakes

Who may dictates how and brakes are tested

1• Federal 2• State 3• provincial laws

Most large,modern,fire department Pumping apparatus are equipped with

Air-actuated braking system (air brakes)

the cab should be lifted ______on a basic for thorough inspection of the engine compartment

weekly

if an overload condition occurs,the ____ will shut down less important _____equipment in order to prevent the overload

LOAD MONITOR / ELECTRICAL

Per NFPA 1911 check for bulges greater than ___

3/8 of an inch

Step on the brake pedal firmly when the apparatus is moving at about ____The Apparatus should come to a complete stop within about ___

5 mph,20 feet

The maximum amount of weight that axle system can safely carry

Gross Axle Weight Rating

Tire selections for fire apparatus are based on ____ for the Apparatus

gross axle weight rating

effective lubrication depends on use of the

proper grade lubricant, the frequency of the lubrication , the amount used, and the method of lubrication

Trails of fluid on the wheel or tire indicated

Axle gear oil leaks

With engine off and master switch on, pump brake pedal continually lowers air tank pressure. Warning light and buzzer should activate before

60 psi

Air pressure should build to 85-100 psi

In 45 seconds at full Engine RPM

Apply the brake pedal, lowering the pressure in the tanks by

5 to 10 psi increments stopping at 85 psi

After one minute, air pressure should not drop than

3 psi straight chassis or 4 psi for tractor drawn aerial

Continue to pump brake pedal until air brake control sets automatically by the button popping out

Between 20 and 40 psi

Some vehicles coolant reservoir have two marks : one for when the engine is hot, the other

When it is cool

If the apparatus has unsealed batteries, carefully remove the caps and check the

Electrolyte (water) level.. add distilled water or water recommended to cell if low

Clean away any corrosion around terminals with a mixture of

Baking soda and water

If batteries are washed, dried batteries to prevent

Parasitic current

Clean road debris,dirt, dust, moisture from the top of the batteries to prevent any___from terminal to terminal that can result in electronics issues

Bleed of current