ASD GENERAL KNOWLEDGE STUDY MATERIAL

This is the study material for the General Knowledge test. Please study it until you are comfortable with the material, and then proceed to the practice tests.

You are checking your steering and exhaust systems in a pretrip inspection. Which of these problems should be fixed before the vehicle is driven?*

Grey smoke from the exhaust pipeSteering wheel play more than 10% (2 inches on a 20 inch wheel)Oil on the tie rod

WHICH PIECE OF EMERGENCY EQUIPMENT SHOULD BE IN YOUR VEHICLE AT ALL TIMES?*

WARNING DEVICES FOR PARKED VEHICLESFIRST AID KITCIRCUIT BREAKERS

WHICH OF THESE IS TRUE ABOUT THE RADIATOR SHUTTERS AND THE WINTER FRONT*

THE ENGINE MAY OVERHEAT IF THE WINTERFRONT IS LEFT OPENTHE WINTERFRONT SHOULD BE CLOSED TIGHTLYYOU SHOULD REMOVE ICE FROM THE RADIATOR SHUTTERS

WHICH OF THESE ITEMS IS NOT CHECKED IN A PRETRIP INSPECTION?*

WHETHER ALL VEHICLE LIGHTS ARE WORKING AND CLEANCARGO SECUREMENTAMOUNT OF FUEL IN THE VEHICLE

WHICH OF THESE STATEMENTS IS NOT TRUE ABOUT ENGINE BELTS IN HOT WEATHER?*

LOOSE BELTS WILL NOT TURN THE WATER PUMP AND/OR FAN ON PROPERLYCRACKING IS LIKELY TO OCCUR BUT IS NOT A SAFETY THREATYOU CAN CHECK THE TIGHTNESS OF THE BELTS BY PRESSING ON THEM

WHICH OF THESE STATEMENTS IS TRUE ABOUT TIRES?*

THE AIR PRESSURE OF A TIRE DECREASES AS THE TEMPERATURE OF THE TIRE INCREASESIF THE TIRES ARE TOO HOT TO TOUCH, RELEASE 5-10 POUNDS OF AIR PRESSURE TO COOL THEM OFFYOU SHOULD INSPECT YOUR TIRES EVERY 2 HOURS OR EVERY 100 MILES WHEN DRIVING IN VERY HOT WEATHER

WHICH OF THESE IS ESPECIALLY TRUE ABOUT YOUR TIRES IN HOT WEATHER?*

YOU SHOULD CHECK TIRE MOUNTING AND AIR PRESSURE BEFORE DRIVINGA SMALL AMOUNT OF AIR SHOULD BE LET OUT SO AIR PRESSURE REMAINS STEADYIF A TIRE IS TOO HOT TO TOUCH, YOU SHOULD HOSE IT DOWN WITH WATER

YOU ARE CHECKING YOUR TIRES IN A PRETRIP INSPECTION. WHICH OF THESE STATEMENTS IS TRUE?*

2/32 INCH TREAD DEPTH IS SAFE FOR THE FRONT TIRESTIRES OF MISMATCHED SIZES SHOULD NOT BE USED ON THE SAME VEHICLERADIAL AND BIAS PLY TIRES CAN BE USED TOGETHER ON THE SAME VEHICLE

WHAT IS THE MOST IMPORTANT REASON TO INSPECT YOUR TRUCK OR BUS?*

TO AVOID BEING CITEDSAFETYITS THE LAW

WHICH OF THESE STATEMENTS IS TRUE ABOUT COLD WEATHER DRIVING?*

EXHAUST SYSTEM LEAKS ARE LESS DANGEROUS IN COLD WEATHERAN ENGINE CANNOT OVERHEAT WHEN THE WEATHER IS VERY COLDWINDSHIELD WASHER ANTIFREEZE SHOULD BE USED

WHICH OF THESE IS NOT PART OF THE ENGINE COMPARTMENT PRE TRIP INSPECTION?*

VALVE CLEARENCEENGINE OIL LEVELCHECKING FOR WORN ELECTRICAL WIRING INSULATION

WHICH OF THESE STATEMENTS IS TRUE ABOUT ENGINE OVERHEATING?*

ANTIFREEZE IS NOT NEEDED WHEN THE WEATHER IS WARMNEVER REMOVE THE RADIATOR CAP ON A PRESSURIZED SYSTEM UNTIL THE ENGINE HAS COOLEDNEVER SHUT OFF AN OVERHEATED ENGINE UNTIL IT HAS COOLED

WHICH OF THESE STATEMENTS IS TRUE ABOUT TIRE PRESSURE?*

TIRE PRESSURE NEED NOT BE CHECKED DURING A TRIP IF IT PASSED PRE TRIPAIR SHOULD BE LET OUT OF HOT TIRES SO THE TIRES DO NOT BLOW OUTAIR PRESSURE IN THE TIRES INCREASE WITH TEMPERATURE

WHAT WILL HELP KEEP AN ENGINE COOL IN HOT WEATHER?*

MAKING SURE THE ENGINE HAS THE RIGHT AMOUNT OF OILRUNNING THE AIR CONDITIONERDRIVING FASTER TO FORCE MORE AIR INTO THE RADIATOR

CAN FEDERAL INSPECTORS INSPECT YOUR TRUCK?*

NOYES, AND THEY CAN PUT IT OUT OF SERVICEYES, BUT THEY CAN NOT PUT IT OUT OF SERVICE

YOU ARE CHECKING YOUR WHEELS AND RIMS DURING A PRE TRIP INSPECTION. WHICH OF THESE STATEMENTS IS TRUE?*

A VEHICLE CAN BE SAFELY DRIVEN WITH ONE MISSING LUG NUT ON THE WHEELMISMATCHED LOCK RINGS CAN BE USED ON THE SAME VEHICLERUST AROUND THE WHEEL NUTS MAY MEAN THEY ARE LOOSE

YOU ARE PERFORMING A PRE TRIP INSPECTION ON YOUR BRAKES AND SUSPENSION SYSTEM. WHICH OF THESE STATEMENTS IS TRUE?*

BRAKE DRUMS SHOULD HAVE NO OIL OR GREASE ON THEMJUST ONE MISSING LEAF SPRING IS NOT DANGEROUSSPRING HANGERS THAT ARE CRACKED BUT STILL TIGHT ARE NOT DANGEROUS

WHICH OF THESE STATEMENTS IS TRUE ABOUT BACKING A HEAVY VEHICLE?*

ITS SAFER TO BACK TOWARD THE RIGHT SIDE OF THE VEHICLEHELPERS SHOULD BE OUT OF SIGHT AND USE ONLY VOICE (SPOKEN) SIGNALS TO COMMUNICATE WITH THE DRIVERYOU SHOULD AVOID BACKING WHENEVER YOU CAN

You are starting your vehicle in motion from a stop. As you apply power to the driver wheels, they start to spin. You should:*

Try a lower gearTake your foot off the acceleratorTake your foot off the accelerator and apply the brakes.

You are driving a heavy vehicle with a manual transmission. You have to stop the vehicle on the shoulder while driving on a uphill grade. Which of these is a good rule to follow when putting the vehicle back in motion?*

Use the parking brake to hold the vehicle until the clutch engagesLet the vehicle roll backwards a few feet before engaging the clutch.Keep the clutch slipping while slowly accelerating

What is the proper way to hold a steering wheel?*

Both hands close together, near the bottom of the wheelBoth hands, on opposite sides of the wheelBoth hands close together, near the top of the wheel

Which of these statements is not true about backing a heavy vehicle?*

You should use a helper and communicate with hand signalsYou should back slowly until you slightly bump into the dock.You should back and turn toward the driver's side whenever possible

A helper should be used to help back your vehicle:*

When you have a trailer on your vehicleWhenever possible.When you need to back on a curved path

When starting to move up a hill from a stop:*

Engage the clutch and accelerate quickly.Keep the trailer brake hand valve applied until you reach 20 mph.Release the parking brake as you apply engine power.

Which of the following does not provide extra gears on some trucks?*

Multi-speed rear axles.Automatic transmissions.Auxiliary transmissions.

Which of these is not a danger when an automatic transmission is forced into a lower gear at high speed?*

Loss of Steering control.Loss of engine braking effect.Damage to the transmission.

Which of these statements is true about downshifting?*

Let the rpm's decrease while the clutch is released and the shift leveris in neutral.Downshift before you enter the curve.Downshift just after you enter the curve

You are driving a new truck with a manual transmission. What gear will you probably have to use to take a long, steep downhill grade?*

A higher gear than you would use to climb the hill.The same gear you would use to climb the hill.A lower gear than you would use to climb the hill.

If you have a heavy load that is slowing you down on an upgrade, you should:*

Exit the road until traffic is lighter.Shift into a lower gear.Drive on the shoulder so others can pass easily.

Retarders:*

Can cause the drive wheels to skid when they have poor traction.Cannot be used on interstate highways.Allow you to disconnect the steering axle brakes.

Which of these statements is true about double-clutching and shifting?*

You can use the tachometer to tell you when to shift.Double-clutching should only be used with a heavy load.Double-clutching should not be used when the road is slippery.

Which of the following is not a type of retarder? *

HydraulicRoboticElectric

It's important to shift gears correctly to keep*

Control of the vehicle.The engine warm.The engine oil flowing.

The purpose of retarders is to:*

Apply extra braking power to the non-driver axles.Help slow the vehicle while driving and reduce brake wear.Help prevent skids and reduce brake wear

The distance that you should look ahead of your vehicle while driving is_______at low speeds.*

2 blocks1/2 block1 block

The distance that you should look ahead of your vehicle while driving is about _______ mile at highway speeds.*

1/21/81/4

In your mirror, you see a car approaching from the rear. The next time you check your mirror, you don't see the car. To change lanes, you should:*

Ease into the other lane slowly so the car can get out of the way.Wait until you are sure the car isn't in your blind spot.Assume the car left the road and change lanes as normal.

How far should a driver look ahead of the vehicle while driving?*

5-8 Seconds12-15 Seconds1-2 Seconds

You should use your mirrors to check:*

Where the rear of your vehicle is while you make turns.Blind spots only.If your running lights are working properly.

Convex (curved) mirrors*

Show a wider area than flat mirrors.Make objects appear larger than they really areMake objects appear closer than they really are.

You must stop on a hill or curve on a two-lane, two-way road. How far backshould you place your reflective triangles?*

As far back as necessary, so others can see your vehicle.Within 250 feet behind the vehicleWithin 500 feet behind the vehicle.

Which of these statements is the proper way to signal for a lane change?*

Signal before you change lanes, and then move over quickly.Signal early, and change lanes slowly and smoothly.Signal just as you begin to change lanes, and drift over slowly

For your safety, when you place your reflective triangles you should:*

Keep them out of sight while you walk to the locations where you will place themCarry the triangles at your side.Hold the triangles with the reflective side toward the oncoming traffic

Which of these statements is true about warning other drivers of a stopped vehicle?*

Keep the vehicle's taillights on to warn other driversMove the rear reflective triangle back if the driver's vision is obscuredwithin 500 feet.Put out your emergency warning devices within 5 minutes.

When you must stop on a one-way or divided highway, you should place your reflective triangles at which of the following locations?*

10 feet, 50 feet, and 100 feet toward approaching traffic10 feet, 100 feet, and 200 feet toward approaching traffic10 feet, 100 feet, and 500 feet toward approaching traffic

You should signal continuously while turning because:*

It is illegal to turn off your signal before completing a turn.Most vehicles have self-canceling signals.You need both hands on the wheel to turn safely.

You are driving a heavy vehicle that curves downhill. You should:*

Wait until you are in the curve before downshifting.Slow down to a safe speed before the curve.Slow to the posted speed limit for the off ramp.

When driving through roadway work zones, you should:*

Reduce speed only if workers are close to roadway.Watch for sharp pavement drop-offsTurn on your parking lights.

Which of these statements is true about speed management?*

On slippery roads, it takes longer to stop and is harder to turn without skiddingRoad surfaces will freeze before bridges.Shady parts of the road allow better traction than open areas

You are driving a vehicle at 55 mph on dry pavement. About how much total stopping distance will you need to bring it to a stop?*

Half the length of a football field, or about 216 ftThe length of a football fieldTwice the length of the vehicle

What should you do when your vehicle hydroplanes?*

Release the accelerator.Accelerate slightly.Start stab braking.

Whenever you double your speed, it will take about______ times as much distance to stop:*

TwoThreeFour

What three things add up to the total stopping distance for your truck or bus?*

Observation distance, response distance, braking distancePerception distance, reaction distance, braking distanceAttention distance, reaction distance, slowing distance

Which of these statements is true about speed and distance?*

It takes twice the distance to stop your vehicle when you double your speed.Choose a speed that lets you stop within the distance you can see ahead.It takes a shorter distance to stop empty trucks than fully loaded ones.

You wish to turn right from a two-lane, two-way street into another. Your vehicle is so long that you must swing wide to complete the turn. Which of these figures (Images A and B above) show how you should make the turn?*

Image AImage B

If someone is following you too closely (tailgating), you should*

Increase your following distanceSignal the tailgater when it is safe to pass youFlash your brake lights

You are driving a 40-foot vehicle at 35 mph. The road is dry and visibility is good. What is the least amount of seconds in space that you should keep in front of your vehicle to be safe?*

3 seconds4 seconds5 seconds

You are driving a heavy vehicle at 35 mph. The speed limit is 55 mph. What is the safest speed for your vehicle?*

45 mph35 mph25 mph

Which of these statements is true about overhead clearance?*

You should assume posted clearance signs are correct.If the road surface causes your vehicle to tilt toward the edge of the roadshould drive close to the shoulderThe weight of a vehicle changes its height

When making a left hand turn with multiple left turning lanes, which lane should you use?*

Furthest left laneFurthest right laneAny lane you want

If you must cross into the oncoming lane as you make a turn, you should*

Complete your turn without stoppingWatch for oncoming TrafficBack up to allow oncoming traffic to pass

When looking ahead of your vehicle, you should look:*

Straight ahead at all timesBack and forth, near and farTo the right side at all times

Which of these is a good thing to remember when crossing or entering traffic with a heavy vehicle?*

Heavy vehicles are easy to see, you can count on other drivers to moveThe way to cross traffic is to pull the vehicle partway across the road and block one lane while waiting for the other to clear.Heavy vehicles need larger gaps in traffic than cars.

Which of these is not something you should do if your headlights are not working properly?*

Leave your high beams onAdjust the headlightsClean the headlights

Which of these is a good thing to do when driving at night?*

Look directly at oncoming headlights only brieflyKeep your instrument lights bright.Drive slowly enough to stop within the range of your headlights

What should you do if a car coming toward you at night keeps its high beams on?*

Look to the right edge of your lane or right side of the road.Flash your high beams at the other driverSlow down and look straight ahead in your lane

When driving at night, you should*

Dim your lights within 300 feet of an oncoming vehicleLook to the left side of the road when a vehicle is coming towards youAdjust your speed to keep your stopping distance within your sight distance

If you cannot see well with your headlights when driving in an area with few streetlights on a clear night, you should*

Use your high beams when legal and keep your interior light offTurn your interior light on.Find another route that is better lit

When driving at night, use your low beams when an oncoming vehicle is within*

300 feet400 feet500 feet

You are driving on a two-lane road. An oncoming driver drifts into your lane and is headed straight for you. Which of these is the best action to take?*

Steer to the rightBrake hardSteer onto the left shoulder

Which of these is not a proper use of vehicle lights?*

Flashing your brake lights to warn someone behind you that you are slowing downFlashing your brake lights to stop someone tailgatingTurning on your headlights during the day when visibility is reduced

What is the best advice for drivers to follow when a heavy fog occurs?*

Do not drive too slowly, or other drivers may hit youPark at a rest area or truck stop until visibility is betterAlternate your low and high beams to improve your vision

When the roads are slippery, you should:*

Stop and test the traction while going up hillsDecrease the distance that you look ahead of your vehicleMake turns as carefuly as possible

Hydroplaning:*

Cannot occur when driving through a puddleIs more likely to occur if tire pressure is lowOccurs when there is a lot of water

You should avoid driving through deep puddles of flowing water. But, if you cannot, which of these steps can help keep your brakes working?*

Gently putting on the brakes while driving through the waterTurning on your brake heatersPressing both the brake pedal and accelerator firmly after coming out of the water

The road you are driving on becomes very slippery due to ice. Which of these is a good thing to do?*

Downshift to stopStop driving as soon as you can safely do so.Keep varying your speed by accelerating and braking

Which of these statements is true about bad weather driving conditions?*

The road is more slippery as rain continues than when rain beginsDriving conditions become more dangerous as the temperature risesWhen the temperature drops, bridges will freeze before roads

In bad weather, many car drivers tailgate large vehicles. You should:*

Increase your following distance to avoid the need to make a quick changeSpeed up to distance yourself from the tailgaterLightly tap your brakes to warn the tailgater to drop back

If you brakes get wet while driving on a rainy day, what can happen when you apply the brakes?*

Trailer jack knife.HydroplaningExcessive brake wear

Which of these is a good thing to remember about drinking alcohol?*

Small quantities of alcohol improve reaction time.Alcohol first affects judgementand self controlThe driver can control how fast the body gets rid of alcohol

To help you stay alert while driving, you should*

Keep the cab warm and quiet.Schedule trips for hours that you are normally asleepTake short breaks before you are drowsy

The best time to take a short break is:*

Immediately after yawning several timesBefore you feel drowsy or tiredImmediately after you have drifted off the road

Which of the following is true about preventing fatigue on a long trip?*

Take an over-the-counter stimulantKeep the vehicle closed and heatedStop periodically for rest and exercise

Which of these statements is true about medicines used to treat the common cold?*

It often makes you sleepy and thus should not be used while drivingIt can be used while driving if you only take half the regular dosageIt should only be used when driving in daytime

If you have been drinking alcohol, before you drive, you should*

Drink coffeeTake a cold showerWait for it to wear off

Which of these statements is true regarding the use of drugs while driving?*

No prescription or non-prescription drugs are allowed at any timePrescription drugs are allowed if a doctor says the drugs will not affectsafe driving abilityUse of amphetamines like " speed " is allowed, if you are using the drugs to stay awake

Which of these statements is true about staying alert to drive?*

Sleep is the only thing that can overcome fatigueA half-hour break for coffee will do more to keep you alert than an hour napIf you must stop, pull over to the side of the road for a short nap

You will be placed out-of-service for 24 hours if your Blood Alcohol Concentration (BAC) is*

At least .04 %Any detectable amount below .04 %At least .02 %

As the Blood Alcohol Concentration (BAC) goes up, what happens?*

The effects of alcohol decreaseThe drinker can clearly see how alcohol is affecting him/herJudgment and self control are affected

Which of the following best describes how "sleep debt" can be paid off?*

It will go away by itself over a period of timeOvercome it with will powerIt can only be paid off by sleeping

After driving for several hours on a long trip, you are feeling sleepy. What is the best thing to do?*

Open your window to breathe fresh airStop for a strong cup of coffeePark in a safe place and take a nap.

Which of these statements is true about drugs?*

Certain prescription drugs are allowed to reduce fatigueUse of drugs can lead to collisions and/or arrestA driver can use any prescription drug while driving

When a doctor prescribes medication for you and you know you will be driving, you should*

Take the medication, as well as other medication to keep you alertTake the medication, but stop taking it if you notice that it is affecting your drivingAsk the doctor if the medication will affect your ability to drive .

For a first offense of driving a commercial vehicle under the influence of alcohol or drugs, you will lose your CDL for at least*

2 years1 year6 months

You should schedule your driving:*

For the hours you are normally awakeBetween the hours of 4 am and 6 pmBetween 10 am and midnight.

To determine a person's blood alcohol concentration, you must know how*

Old the person IsOften the person drinks alcohol (tolerance level)Much the person weighs.

Which of these statements is not true?*

BAC is determined by how fast you drink, how much you drink, and how much you weighAlcohol goes directly from the stomach to the blood streamA drinker can control how fast his or her body absorbs and gets rid of alcohol

Brake "fade" can be*

Caused by very cold weather.Caused by the brakes getting very hotCorrected by letting up on the brakes for 1-2 seconds and then reapplying them

Your vehicle has hydraulic brakes. While traveling on a level road, you press the brake pedal and find that it goes to the floor. Which of these statements is true?*

The parking brake will not work because it is part of the same hydraulic systemPumping the brake will generate enough pressure to stop the vehicleShifting into neutral will help slow the vehicle

Which of these statements is true about brakes?*

Brake fade is not caused by heatBrake drums cool very quickly when the vehicle is moving very fastBrakes absorb more heat to stop heavier vehicles

Most serious skids result from*

Having an uneven loadDriving too fast for conditionsTurning too sharply

Which of these is important to remember about emergency braking?*

If the wheels are skidding, you cannot control the vehicleDisconnecting the steering axle brakes will help keep your vehicle in a straight lineNever do it without downshifting first

To correct a drive-wheel braking skid, you should:*

Increase braking, turn quickly, and countersteerStop braking, turn quickly, and countersteer.Stop braking

If a straight vehicle (no trailer or articulation) goes into a front-wheel skid, it will*

Slide sideways and spin outTravel straight ahead until you turn the steering wheelTravel straight ahead even if you turn the steering wheel

What should you do when you see a hazard in the roadway?*

Stop quickly and pull to the side of the roadUse your 4-way flashers or brake lights to caution othersSwerve around it and get back on the road

Which of these statements is a good rule to remember when your vehicle is in a traffic emergency and may collide with another vehicle?*

You can almost always turn to miss an obstacle more quickly than you can stopStopping is always the safest action in a traffic emergencyLeaving the road is always more risky in a traffic emergency

A car suddenly "cuts" in front of you creating a hazard. Which of these actions should you not take?*

Slow down to prevent a crashSignal and change lanes to avoid the car, if possibleHonk and stay close behind the car

Which of these is a good thing to do when you steer to avoid a crash?*

Avoid countersteeringDon't turn the steering wheel any more than neededApply the brakes while turning

Which of these happens when a tire blows out at Highway speeds*

A vibrating feelingA hissing soundA rapid drop in speed to less than 20 mph

To prevent brake "fade", you should:*

Apply constant hard pressure throughout the hill.Select a gear that will keep your truck at a safe speed on steep hillsCoast down hills that are not very steep

When you must leave the road to avoid a hazard or emergency, you should keep in mind that:*

Most shoulders are not strong enough to support the weight of a large vehicleYou may be unable to re-enter the roadIt is less dangerous to drive onto the shoulder than to risk a collision

To avoid a crash, you had to drive onto the right shoulder. You are now driving at 40 mph on the shoulder. How should you move back onto the pavement?*

If the shoulder is clear, stay on it until your vehicle comes to a stop. Then move back onto the pavement when it is safeKeep moving at your present speed and steer very gently back onto thepavement when it is safeBrake hard to slow the vehicle, then steer sharply onto the pavement when it is safe

The best drivers are those who watch and prepare for hazards. This is called being:*

OffensiveObjectiveDefensive

If you need to leave the road in a traffic emergency, you should*

Try to get all wheels off the pavementAvoid braking until your speed has dropped to about 20 mphAvoid driving on the shoulder of the road

You are driving on a straight, level highway at 50 mph with no vehicles in front of you. Suddenly, a tire blows out on your vehicle. What should you do first?*

Stay off the braking until the vehicle has slowed down.Begin lightly brakingBegin emergency braking

Which of these is not a good rule to follow when caring for an injured person at a collision?*

Move severely injured persons if a danger existsKeep injured persons coolIf a qualified person is helping them, stay out of the way unless asked to assist

Which of these statements is true about causes of vehicle fires?*

Carrying a properly charged fire extinguisher will help prevent firesUnder-inflated tires will NOT cause a vehicle firePoor trailer ventilation can cause flammable cargo to catch on fire

Which of these statements is true about vehicle fires?*

A burning tire should be cooled with waterIf the cargo or box trailer catches on fire, open the doors as soon as you canIf the engine is on fire, open the hood as soon as you can

On which fires can you use water?*

GasolineTireElectrical

Which of these statements is true about cargo loading?*

If cargo is loaded by the shipper, the driver is not responsible for overloadingThe legal maximum weight allowed by a state is considered safe for all driving conditionsState laws dictate legal weight limits.

The total weight of a powered unit, the trailer, and the cargo is called*

Gross axle weightGross combination weightGross vehicle weight

Where or how is cargo blocking used?*

From the upper part of the cargo to the floorFrom the front, back, and or sides of the cargoLoosely around the cargo

Which of these statements is true about cargo types?*

Tank vehicles used to transport liquids should always be fully loadedOversize loads can be transported without special permits when roads are not busyUnstable loads (eg., hanging meat, livestock) require extra attention around curves.

A key principle to remember about loading cargo is to keep the load*

To the rearBalanced in the cargo area .To the front

Containerized loads*

Should come with their own tie-down devices or locksDo not need to be inspected or secured by the driverAre generally used for freight carried part way by rail or ship

Which of these statements is true about shipping hazardous materials?*

Gas cylinders that will not hold a label must be shipped under coverA four-inch, diamond-shaped, hazardous materials label must be on the containerA four-inch, circular, red hazardous material label must be on the container

One can recognize hazardous materials by looking at the container's*

LabelShapeColor

Where must you keep shipping papers when transporting hazardous materials?*

In the glove compartment, which must be lockedUnder the driver's seatIn a pouch on the driver's door or on the seat

You do not have a HazMat endorsement on your commercial driver license. You drive a vehicle transporting hazardous materials when*

The vehicle does not require placardsA person with a HazMat endorsement rides with youThe GVWR is 26,001 pounds or less

If you do not have a HazMat endorsement on your commercial driver license and you are asked to deliver hazardous materials in a placarded vehicle, you should*

Transport the load to the nearest place where a driver with a HazMat endorsement can take overTransport the load and file a report with the DOT after the tripRefuse to transport the load

Which of these is not required knowledge for drivers needing HazMat endorsement?*

Basic chemistryWhich products can be loaded togetherWhen to use placards

Bridge formulas permit*

Less maximum axle weight for axles that are far apartThe same maximum axle weight for any axle spacingLess maximum axle weight for axles that are close together

Truck escape ramps*

Are not for busesHelp avoid damage to vehiclesCannot be used by certain types of heavy vehicles

Use your vehicle's horn when*

It may help avoid a crashA car is in your wayYou want to change lanes

Which of these is true about hours of service?*

You must take a break after every 2 hoursYou should balance your hours of service with enough sleep to keep you alertAfter graduation from ASD and 1,000 hours on the road you will be exempt from certain regulations

The Commercial Driver Handbook suggests several things to do when you pass a vehicle. Which of these is not one of them?*

At night, turn on your high beams while you pass the vehicleAssume the other driver does not see youLightly tap your horn, if needed

You can see this sign (above) on a vehicle ahead of you. What does the sign mean?*

Student driverHazardous materials on boardSlow moving vehicle

According to the commercial Driver Handbook, why should you limit the use of your horn?*

You should keep both hands on the steering wheel at all timesIt can startle other driversIt reduces air pressure needed to stop vehicles with air brakes

Which of these statements is true about other drivers?*

Short-term or daily rental truck drivers are often not used due to the limited vision and posing a hazardMail or delivery truck drivers do not pose a hazardDrivers using turn signals can be trusted to turn in the direction they indicate

When driving on grades, which of these is the best choice for a safe speed?*

Based on your vehicle and its cargo, select a speed that is safe within the posted speedFollow the vehicle in front of youIf you have a light load, you can go faster than those with a heavy load

Which of these is a danger of crossing railroad tracks on dirt roads?*

You could get hung up halfway across the tracksThe ground underneath the tracks may not be stableYour tires could sink into the dirt and not cross the tracks

"Implied consent" means when you sign the driver license application form, you*

Understand that you may drink alcohol now before drivingGive your consent to be tested for alcohol in your bloodGive your consent to a vehicle inspection for alcohol

When approaching a traffic light that has been green for a long time, you should*

Continue at your current speedAccelerate so you can get through the lightStart slowing slowing down so you will be ready to stop

What is the term for a commercial vehicles habit of swinging wide on turns?*

Swing jumpingWide roundingOff tracking

What happens to tar in road pavement during hot weather?*

Nothing, it was designed for hot weatherIt bleeds, making the road surface slipperyIt becomes gummy, making the tires stick to the road

Trucks and buses are subject to certain laws, regulations, and restrictions. Which of these statements is true?*

Federal regulations apply only to trucks and buses driven at least 50 miles on a tripLaws and restrictions can vary from place to placeCounty and city laws do not apply to trucks and buses engaged in interstate commerce

What is countersteering?*

Turning the steering wheel back in the other direction after steering to avoid a traffic emergencyUsing the steering axle brakes to prevent oversteeringTurning the steering wheel counterclockwise to prevent oversteering

The braking effect of the engine is greatest when the engine is _________ the governed RPMs and the transmission is in the __________ gears.*

Above, lowerNear, lowerBelow, higher

After starting the engine, the:*

Engine Temperature gauge will take 3-5 minutes to rise to normalOil pressure gauge should take 3-5 minutes to rise to normalCoolant temperature gauge should begin a gradual rise to normal

Which of these lights cannot be checked at the same time?*

Turn signals, taillights, and clearance lightsTurn signals, brake lights, and four-way flashersHeadlights, brake lights, and clearance lights

Tire chains should:*

Only be used on the drive wheelsNever be used on asphaltBe carried when driving in winter weather

When driving in cold weather, your tire tread should:*

Be double the depth required in normal weatherProvide enough traction to steer and push the vehicle through the snowBe checked every 100 miles or every two hours

Which of these items should be tested while the vehicle is stopped?*

Parking brakeService brakeHydraulic brake

If you are unsure of your position while backing your vehicle, you should:*

Re-position the vehicle and check your positionGet out of the vehicle and check your positionContinue backing until you can verify your position in the mirrors

When starting a bus on a level surface with good traction, there is often no need for:*

A tire checkSlow accelerationThe parking brake

When should you wear a seat belt in a moving vehicle?*

Only when on a highwayOnly when you are drivingAt all times

Which of these statements is true about acceleration?*

Rough acceleration can cause mechanical damageYou should feel a "jerking" motion if you are accelerating your vehicle properlyUse the trailer brake when starting is dangerous

Backing a commercial vehicle is:*

Not dangerous if you have a helperAlways dangerousNot dangerous if you do have to turn

Which statement is true about using engine braking?*

It creates extra heat between the brake shoes or pads and the drum(s) or disksThe use of brakes on a downgrade adds to the braking effect of the engineEngine braking should not be used as the main way to control speed

Retarders can be used:*

Only for downhill brakingOnly on roads with poor tractionOnly where they are permitted by law

Adjust your vehicle's outside mirrors so that:*

Some part of the vehicle is showingYou do not have a blind spotYou can see your entire vehicle

When it is hard to see and be seen, you can let others know you are there by:*

Using your hornTurning on the low-beam headlightsTurning on the inside cab light

You should always turn on your 4-way emergency flashers when you:*

Cross railroad tracksDrive through mountainsPark on the side of the road

You should lightly apply your brakes to flash the brake lights if:*

You are about to exit the road and need to slow downA driver is tailgating your vehicleA police car is approaching from the other direction

Why will your vehicle's speed naturally increase on downgrades?*

The engine runs smootherGravityLack of traction

You are driving a heavy vehicle. You must exit a highway using an off ramp that curves downhill. You should:*

Slow down to a safe speed before the curveWait until you are in the curve before downshiftingSlow to the posted speed limit for the off ramp

You are driving in a steady rain. A good indication that hydroplaning can occur is when:*

The roadway surface is newYou cannot see raindrops on the roadway surfaceThe vehicle in front of you creates water splashes

Whenever you double your speed, your vehicle has about ______ times the destructive power if it crashes*

ThreeTwoFour

The speed at which you drive should be determined by your:*

VisibilityScheduleEngine type

Which of these actions is NOT recommended for a left turn?*

Start in the inside lane and swing right as you turnUse the right-hand turn lane if there are two turning lanesStart your turn from the center of the intersection

Take extra care to keep your vehicle centered in your lane because commercial vehicles:*

Require a lot of room to change lanesAre often wider than other vehiclesTend to sway from side to side

You are driving a long vehicle that makes wide turns. You want to make a left turn from Elm Street onto Oak Street. There are two left turn lanes (marked "A" is the inside lane and marked "B" is the outside lane) which lane should you turn from?*

Use left turn lane "A"Use left turn lane "B"Start in left turn lane "A" and swing into left turn lane "B" just before entering the intersection

When do strong winds affect driving the most:*

On bridges or overpassesOn open highwayWhen exiting tunnels

Why can tourists be hazards?*

Law enforcement officers will not give them a ticketThey often drive rental carsThey may drive slowly and make sudden stops on lane changes

How can you identify an impaired driver?*

The vehicle is weaving in and out of trafficThe vehicle is drifting across lanes and moving at variable speedsThe vehicle is speeding

Which of the following can keep you from being distracted while you drive?*

Preload your favorite CDs or Cassette tapesConstantly review your maps and route plans as you driveTry to use communication devices only in light traffic

If you must use a cell phone while driving, you should:*

Pull off the road onto a safe and legal positionReduce your speedPosition the phone so you can drive and see the road in front of you

Which of the following is a good way to react to an aggressive driver?*

Change the CD or have a snackGive the driver the benefit of the doubtSmoke a cigarette to relax

Which of the following statements about driving in fog is true?*

Stay as close behind a vehicle as possible, so you can always see the vehicleAssume that the fog will become thicker after you enterUse high-beam headlights

When hydraulic brakes fail, the system won't build up pressure and the brake pedal will feel spongy or go to the floor. What action should you take?*

Push down on the brake pedal as hard as you canPut the vehicle in neutral and set the parking brakePump the brake pedal to generate pressure

Which of the following is NOT characteristic of a front tire failure?*

Difficult steeringSteering wheel twistingVehicle fishtail

Should brake adjustment be checked often?*

No, other brakes will make up for a brake that is out of adjustmentit depends on how new the brakes areYes, brakes can get out of adjustment when they are used a lot

In rear tire failure, dual rear tires will:*

Usually prevent fishtailAllow you to brake immediatelyPrevent vibration or thumping

Which of these statements is true about rear drive wheel braking skids?*

Trailer can push the towing vehicle sidewaysFront wheels slide sideways to try to "catch up" with rear wheelsLocked wheels usually have more traction than rolling wheels

Antilock braking systems:*

Shorten your stopping distanceWork only when you activate the in-cab switchKeep your wheels from locking up during hard brake applications

When braking for an emergency stop with a vehicle that has antilock brakes on all axles, you should:*

Brake with enough force to maintain controlPump the brakes until ABS takes overApply full brakes

If you do not have a CB radio, what is the first thing you should do at a collision scene?*

Care for the injuredNotify authoritiesProtect the area

What does emergency braking mean?*

Pushing down on the brakes pedal as hard as you canResponding to a hazard by slowing the vehicleUsing the vehicle's emergency brake

If you are not sure how to put out a hazardous materials fire, you should:*

Wait for qualified firefightersUse waterUse dirt

When should you learn how a fire extinguisher works?*

Before a fire happensWhen a fire happensWhen you are transporting flammable materials

Which of these is true about hazardous materials?*

Every truck carrying any amount of hazardous materials must have a placardAll hazardous materials present a health and safety threatAll public roads allow trucks to carry hazardous materials if they are loaded correctly

Placards must be:*

Placed on all four sides of a vehicleDisplayed on all vehicles transporting any amount of hazardous materialsPlaced only on the front and rear of a vehicle

Over-length, over-width, or over-weight loads:*

Must be escorted by policeRequire Calf-trans transit permitsCan only be driven in daylight

One reason that dry bulk tans require special care:*

The load can shiftThey can easily catch fireThey can only be filled halfway

This is the study material for the General Knowledge test. Please study it until you are comfortable with the material, and then proceed to the practice tests.

ASD General Knowledge Study Material