California DMV Cdl Practice General Knowledge Test A Flashcards

California DMV Cdl Practice General Knowledge Test A Flashcards During a static leakage test, what is the maximum leakage rate that is safe for a double combination vehicle?3PSI in 1 minute How much distance will an air brake-equipped vehicle need to come to a complete stop if it is traveling at 55 mph under ideal driving conditions?450 Feet What do the two systems of a dual air brake system share?An Air compressor

Before starting down a hill, be sure to: Switch into a low gear.

If there is a fire in your vehicle, you should not:Pull into a service station

What are placards?Signs placed on a vehicle to identify cargo hazards

Front wheel braking works:under all conditions

Be sure that your wheel bearing/seals are: Not leaking

The ____ are activated by an electric switch that is triggered by the brake pedal.Brake Lights In cold weather, an alcohol evaporator should be checked

and filled:

Everyday

If you must drive in reverse, using driver's side backing:Always encouraged

You may not consume alcohol within ____ of going on duty.Four Hours When pulled over to the side of the road, you should:Use your four-way emergency flashers to alert other motorists to your presence.

• . When you double your speed from 20 to 40 mph, your

vehicle's stopping distance is:

Quadrupled When adjusting your mirrors before a trip: Part of your vehicle should be visible in the mirrors.

On any upgrade, gravity will:Slow your vehicle down

If an air compressor is belt-driven, the belt should be

routinely checked to ensure that it is:

Properly Tightened

Rough acceleration:Can cause mechanical damage

Slow down and be extra careful:When approaching a work zone.

Who is responsible for cargo that has been loaded onto a truck?The truck driver Which of the following is not a sign of fatigue? Staying in your lane If the low pressure warning signal activates while you are

driving, you should:

Exit the road and park as soon as safely possible Having weight loaded in a way that creates a high center of

gravity:

Increases the likelihood of a rollover As the driver of a truck carrying a load, you are responsible

for all of the following, except:

Knowing the phone numbers of all fire departments along your intended route of travel.When driving a 50-foot truck at 50 mph, your minimum

following distance should be:

Six Seconds To warn drivers behind you that you will be slowing down,

you should:

Tap your brake pedal a few times to illuminate your brake lights.

To avoid a hazard, you:May need to swerve your vehicle out of the way.Stopping is not always the best way to avoid a hazard. If there is not enough space for you to stop to avoid coming into contact with the hazard, swerving out of the way may be your safest option.

If exiting a bus, a driver must:Maintain contact with the handrail

If turning to avoid a hazard:You should not brake as it may cause the wheels to lock If using spring brakes when hauling a heavy load, a

complete stop will:

Take a longer time In hot weather, spots on the pavement where tar is

bleeding:

Are very slippery When taking the basic vehicle control skills test, failing to

exit your vehicle properly during any exercise will result in:

Automatic failure of the basic vehicle control skills test.Most heavy trucks with manual transmissions require ____ to change gears.Double clutching Which of the following is not a sign of tire failure?Smoother Steering What is brake lag?The time required for the brakes to work after the brake pedal is pushed In cool weather, as the temperature begins to rise and ice

begins to melt:

The road will become even more slippery During an applied leakage test, what is the maximum leakage rate that is safe for a single vehicle with air brakes?

• psi in one minute

Who may operate a vehicle that is transporting hazardous materials?A driver with a hazardous materials endorsement If involved in an accident, which of the following is not recommended?Driving away from the scene You may be an aggressive driver if you:Make hand gestures that could anger other drivers.Friction inside a brake drum is caused when the brake

shoes and linings:

Push against the inside of the drum.For a truck with three axles, what is the maximum speed limit?55mph What tells you how much pressure is in your vehicle's air tanks?The supply pressure gauge A safety valve is set to open at ____ pounds per square inch (psi).150 The leakage rate for a single vehicle with air brakes should be no more than ____ in one minute during a static leakage test.

• PSI

A one-way check valve:Prevents air from escaping if the air compressor has a leak.Operating a commercial motor vehicle with a minimum blood alcohol content (BAC) of ____ is illegal.

0.04 percent When an S-cam turns inside a brake drum, the S-cam:Presses the brake shoes against the inside of the brake drum.

When exiting a vehicle, a driver should: Be turned to face their vehicle.