CDL Test

How do you correct a rear wheel acceleration skid?

Stop accelerating

For this item, refer to the figure below. You are driving a long vehicle that makes wide turns. You want to make left turn from elm to oak. there are two left turn lanes a&b

Use left lane B

Which statement is true about backing a heavy vehicle a. avoid backing whenever you can b. helpers should be out of sight and use only spoken signals to communicate with driver c. safer to back toward right side of vehicle d. all of the above

a. avoid backing whenever you can

If you are being tailgated, you should a. increase your following distance b. flash your brake lights c. speed up d. signal the tailgater when it is safe to pass you

a. increase your following distance

To correct a drive-wheel braking skid a. stop braking b. stop braking, turn quickly, and counter steer c. increase braking d. increase braking, turn quickly, counter steer

b. stop braking, turn quickly, and counter steer

which of these statements about cold weather driving is true

b. windshield washer antifreeze should be used

Heavy vehicles must sometimes travel more slowly than other traffic. Which of these is NOT a good rule to follow when you are driving such a vehicle a. stay to the right b. turn on your flashers if it is legal to do so c. signal other drivers when it is safe for them to pass you d. pass other vehicles only if you can do so quickly

c. signal other drivers when it is safe for them to pass you

You are driving a 40 foot vehicle at 40 mph. Driving condition, are ideal. What is the least amount of space you should keep in front of your vehicle to be safe a. 2 seconds b. 3 seconds c. 4 seconds d. 5 seconds

d. 5 seconds

All of these are true about drinking alcohol except a. Alcohol first affects judgement and self control b. A driver can lose his/her license for driving while drunk c. The chance of a crash is much greater for driver, who may have been drinking, than for drivers who were not d. Three 12 ounce beers are equal to 12 shots

d. Three 12 ounce beers are equal to 12 shots

An enroute inspection should include checking a. tire overheating b. brake overheating c. cargo sacrament d. all of the above

d. all of the above

Which of these statements about speed management are true a. on a wet road you should reduce your speed by about one third b. on packed snow you should reduce your speed by about one half c. when the road is slippery it will take longer to stop and it will be harder to turn without skidding d. all the above

d. all the above

You should use your mirrors to check a. the condition of your tires b. where the rear of your vehicle is while you make turns c. traffic gaps when merging d. all the above

d. all the above

Hydroplaning a. only occurs when there is a lot of water b. only occurs at speeds above 50 mph c. cannot occur when driving through a puddle d. is more likely if tire pressure is low

d. is more likely if tire pressure is low

According to the drivers manual why should you limit the use of your horn

a. it can startle other drivers

You can see a marking on a vehicle ahead of you. The marking is a red triangle with an orange center. What does the marking mean a. it may be a slow moving vehicle b. the vehicle is hauling hazardous materials c. it is a law enforcement vehicle d. its being driven by a student driver

a. it may be a slow moving vehicle

if need to leave road in traffic emergency

avoid braking until your speed has dropped to 20 mph

For your safety, when setting out reflective triangles you should:

b. hold the triangles between yourself and oncoming traffic

The distance that you should look ahead of your vehicle while driving amounts to about mile at highway speed a. 1110 b. 1/8 c. 1/4 d. 1/2

c. 1/4

Which of these is a sign of tire failure a. steering that feels heavy b. a loud bang c. vibration d. all of the above

d. all of the above

All of these will cause a fire except a. under inflated tires b. loose fuel connections c. electrical short circuits d. blown circuit breakers

d. blown circuit breakers

as the blood alcohol concentration goes up what happens

judgement and self control impacted

best action to take when oncoming driver drifts in your lane on two lane road

steer to the right

downshifting statement

when you downshift for a curve, do so before entering curve

To help you stay alert while driving, you should: A. Schedule trips for hours you are normally asleep. B. Take cold medicine if you have a cold. C. Take short breaks before you get drowsy. D. Do all the above.

C. Take short breaks before you get drowsy.

Truck escape ramps a. help avoid damage to vehicles b. shouldnt be used if brakes fail on a downgrade c. cant be used by certain types of heavy vehicles d. all of the above

a. help avoid damage to vehicles

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 a. if the shoulder is clear, stay on it until your vehicle has come to a stop. Then move back onto the pavement when it is safe b. brake hard to slow the vehicle, then steer sharply onto the pavement c. steer sharply onto the pavement, then brake hard as you counter steer d. keep moving at the present speed and steer very gently back onto the pavement

a. if the shoulder is clear, stay on it until your vehicle has come to a stop. Then move back onto the pavement when it is safe

Which of these is a good thing to do when driving at night a. keep your speed low enough that you can stop within the range of your headlights b. look directly at oncoming headlights only briefly c. wear sunglasses d. keep your instrument lights bright

a. keep your speed low enough that you can stop within the range of your headlights

You must park on the side of a level, straight, four-lane, divided highway. Where should you place reflective triangles

a. one within 10 feet of the rear of the vehicle , one about 100 feet to the rear, one about 200 feet to the rear

cargo inspection a. should be done after every break during driving b. is only required for hazardous materials c. should be done every 6 hours or 300 miles d. is not required

a. should be done after every break during driving

The road you are driving on becomes very slippery due to glare ice. Which of these is a good thing to do in such a situation a. stop driving as soon as you safely can b. downshift to stop c. apply the brakes often to keep the linings dry d. keep varying your speed by accelerating and braking

a. stop driving as soon as you safely can

You are starting your vehicle in motion from a stop. As you apply power to the drive wheels, they start to spin. What should you do a. take your foot off the accelerator b. take your foot off the accelerator and apply the brakes c. press harder on the accelerator d. try a lower gear

a. take your foot off the accelerator

Which of these statements is true about brakes a. the heavier a vehicle or faster its moving, the more heat the brakes have to absorb to stop it b. brakes have more stopping power when they get very hot c. brake drums cool very quickly when the vehicle is moving fast d. all of the above are true

a. the heavier a vehicle or faster its moving, the more heat the brakes have to absorb to stop it

Which of these statements about certain types of cargo is true

a. unstable loads such as hanging meat or livestock can require extra caution on curves

High beams should be a. used when it is safe and legal to do so b. turned on when an oncoming driver does not dim his/ her lights c. dimmed at the time that you get within 100 feet of another vehicle d. all of the above

a. used when it is safe and legal to do so

Which of these statements about downshifting is true a. when you downshift for a curve, you should do so before you enter the curve b. when you downshift for a hill, you should do so after you start going down the hill c. when double-clutching, you should let the rpms decrease while the clutch is released and the shift lever is in neutral d. all of the above

a. when you downshift for a curve, you should do so before you enter the curve

Your vehicle is in a traffic emergency and may collide with another vehicle if you do not take action. Which of these is a good rule to remember at such a time a. you can almost always turn to miss an obstacle more quickly than you can stop b. stopping is always safest in a traffic emergency c. leaving road is more risky than hitting another vehicle d. unbuckle safety belt before impact so you wont get trapped in vehicle

a. you can almost always turn to miss an obstacle more quickly than you can stop

backing is always dangerous you should back and turn toward driver side whenever possible use a helper and communicate by hand signals

all true about backing a heavy vehicle

what keeps engine cool in hot weather

avoiding high speed driving the right amount of oil proper tightness of v belt

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. the same gear youd use to climb the hill b. a lower gear than youd use to climb the hill c. a higher gear than youd use to climb the hill d. none newer trucks can coast down hills

b. a lower gear than youd use to climb the hill

The drivers manual suggests several things to do when you pass a vehicle. Which of these isnt one of them a. lightly tap your horn b. at night, turn on your high beams before you start to pass and leave them on until youve completely passed the vehicle c. drive carefully to avoid a crash d. assume the other driver does not see you

b. at night, turn on your high beams before you start to pass and leave them on until youve completely passed the vehicle

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 shows how you should make the turn a. figure a b. figure b c. figure c d. figure d

b. figure b

The purpose of retarders is to a. provide emergency brakes b. help slow the vehicle while driving and reduce brake wear c. apply extra braking power to the non-drive axles d. help prevent skids

b. help slow the vehicle while driving and reduce brake wear

Which of these statements about tires and hot weather driving is true a. if a tire is too hot to touch, drive on it to cool it b. inspect your tires every two hours or every 100 miles in hot weather c. air pressure of tire decreases as temperature of tire increases d. all of above

b. inspect your tires every two hours or every 100 miles in hot weather

When the roads are slippery a. drive alongside other vehicles b. make turns as gently as possible c. stop and test the traction while going up hills d. decrease the distance that you look ahead of your vehicle

b. make turns as gently as possible

Immediately after a long, hot drive you check your air pressure in a tire and it is 5 lbs high. You should a. before the next trip set the cold air pressure 5 lbs below the recommended level b. recheck the pressure after the tire cools off c. when you resume the trip drive more slowly d. let 5 lbs of air from the tire

b. recheck the pressure after the tire cools off

Which of these statements about overhead clearance is true a. you should assume posted clearance signs are correct b. the weight of a vehicle changes its height c. if the road surface causes your vehicle to tilt toward objects at edge of road, you should drive closer to shoulder d, extra speed will cause air to push your vehicle down for extra clearance

b. the weight of a vehicle changes its height

You are checking your wheels and rims for a pre trip inspection. Which of these statements is true a. dual tired should be touching each other b. tires of mitchmatched sites shouldnt be used on the same vehicle c. radial and bias-ply tires can be used together on the same vehicle d. 2/32 inch tread depth is safe for the front tires

b. tires of mitchmatched sites shouldnt be used on the same vehicle

Which of these is not part of the pre trip inspection of engine compartment a. engine oil level b. valve clearance c. condition of hoses d. worn electrical wiring insulation

b. valve clearance

The most important reason for being alert to hazards is so a. law enforcement personnel can be called b. you will have time to plan your escape if the hazard becomes an emergency c. you can help impaired drivers d. accident reports will be accurate

b. you will have time to plan your escape if the hazard becomes an emergency

a key principle to remember about loading cargo is to keep the load

balanced in the cargo area

You must drive on a slippery road, what should you do a. use a smaller following distance b. apply the brakes while on curves c. slow down gradually d. all of the above

c slow down gradually

How far should a driver look ahead of the vehicle when driving a. 1-2 seconds b. 5-8 seconds c. 12-15 seconds d. 18-21 seconds

c. 12-15 seconds

You are driving a 40 foot vehicle at 35 mph. Road is dry and visibility good. Whats the least amount of space you should keep in front of your vehicle a. 2 seconds b. 3 seconds c. 4 seconds d. 5 seconds

c. 4 seconds

Every time you leave your vehicle you should a. leave it in gear (if it has manual transmission) b. turn the steering wheel as far to the left as you can c. apply the parking brake d. do all of the above

c. apply the parking brake

Retarders a. cause extra brake wear b. allow you to disconnect the steering axle brakes c. can cause the drive wheel to skid when they have poor traction d. cannot be used on interstate highways

c. can cause the drive wheel to skid when they have poor traction

If a straight vehicle goes into a front wheel skid.. it will

c. go straight ahead even if the steering wheel is turned

Which of these is most important to remember about emergency braking a. it helps keep brake lines clean b. disconnecting steering axle brakes will help keep vehicle in straight line during emergency braking c. if vehicle's wheels are spinning, you cannot control vehicle d. never do it without downshifting first

c. if vehicle's wheels are spinning, you cannot control vehicle

Which of these is not a good rule to follow when caring for a person injured at an accident scene

c. keep injured person cooled

what should you do if your vehicle hydroplanes a. start stab braking b. accelerate slightly c. release accelerator d. turn right

c. release accelerator

You do not have a Hazardous Materials Endorsement on your Commercial drivers license. You can drive a vehicle hauling hazardous materials when a. the shipment will not cross state lines b. the GVWR is 26001 or less c. the vehicle does not require placards d. a person who has hazardous materials endorsement rides along

c. the vehicle does not require placards

Which of these statements about drugs are true a. a driver can use any prescription drug while driving b. amphetamines ("pep pills" or "bennies") can be used to help the driver stay alert c. use drugs can lead to accidents and/or arrest d. all of the above

c. use drugs can lead to accidents and/or arrest

Which of these is good to remember about drinking alcohol a. alcohol first affects judgement and self control b. chance of having a crash greater for drunk drivers than non drinking drivers c. driver can lose license for driving drunk d. all above

d. all above

Cargo covers a. protect people from spilled cargo b. may be a safety requirement in some states c. protect cargo from weather d. all of the above

d. all of the above

Cargo that isn't loaded or secured properly can cause a. vehicle damage by overloading b. other highway users to hit or be hit by loose cargo c. injury to the driver during a quick stop or crash d. all of the above

d. all of the above

Which of these can cause the vehicle to skid a. turning too sharp b. not enough weight on front axle c. overacceleration d. all of the above

d. all of the above

Which of these pieces of emergency equipment should always be carried in your vehicle a. fire extinguisher b. spare electrical fuses c. warning devices for parked vehicles d. all of the above

d. all of the above

Which of these would tell you that a shipment contains hazardous materials a. the name of a hazard class on the shipping paper b. a four-inch , diamond- shaped hazardous ,materials label on the container c. a hazardous materials placard on the vehicle d. all of the above

d. all of the above

You are checking your brakes and suspension system for pretrip inspection. whats true a. brake shoes shouldnt have oil, grease, or brake fluid on them b. brake pads shouldnt have brake fluid on them c. one missing leaf in a leaf spring can be dangerous d. all of the above

d. all of the above

Your brakes can get wet when you drive through a heavy rain. What can this cause when the brakes are applied a. uneven braking b. trailer jackknife c. lack of braking power d. all of the above

d. all of the above

When driving through work zones you should a. turn on flashers b. drive slowly c. use your brake lights to warn drivers behind you d. all the above

d. all the above

Which fires can you use water to put out a. tire fires b. gasoline fires c. electrical fires d. all the above

d. all the above

Which of these can cause a fire a. under inflated tires b. loose fuel connections c. electrical short circuits. d. all the above

d. all the above

You should use your mirrors to check the following a. the condition of your tires b. where the rear of your vehicle is while you make turns c. traffic gaps when merging d. blind spot.

d. blind spot.

Which of these statements about vehicle fires is true a. if cargo in van or box trailer catches on fire you should open the cargo doors as soon as you can b. if your engine is on fire you should open the hood asap c. if a trailer is on fire, you should drive fast to put the flames out d. burning tire should be cooled with water

d. burning tire should be cooled with water

You are driving a vehicle at 55 mph on a dry pavement. How much total stopping distance will you need a. the length of the vehicle b. twice the length of the vehicle c. half the length of a football field d. length of a football field

d. length of a football field

Which of these statements about driving in areas with strong winds is true a. drive alongside other vehicles to help break up wind b. lighter your vehicle is, less trouble you'll have with wind c. winds are problem when coming out of tunnels especially d. lessen the effect of wind by letting some air out of your tires

d. lessen the effect of wind by letting some air out of your tires

You are driving in the right lane of a four lane undivided road. You come over a hill and find a car stopped ahead in your lane but don't have room to stop. The hill blocks your rearview. What is the best option to take a. use hard braking and brace for collision b. steer into the left lane c. steer into the oncoming lanes d. steer to the right

d. steer to the right

What is counter steering a. turning the wheel counterclockwise b. steering in the opposite direction from what other drivers expect c. using the steering axle brakes to prevent over steering d. turning wheel back in the other direction after steering to avoid a traffic emergency

d. turning wheel back in the other direction after steering to avoid a traffic emergency

What is the proper way to hold a steering wheel a. with one hand b. with both hands close together near top of steering wheel c. with both hands close together near bottom of steering wheel d. with both hands on opposite sides of wheel

d. with both hands on opposite sides of wheel

what to do when steering to avoid a crash

dont turn any more than what is needed to clear what is in your way

used to stop runaway vehicles designed to prevent injury to drivers, passengers, and vehicles

escape ramp uses

avoid driving through deep puddles or flowing water but if you must what may keep your brakes working

gently putting the brakes on while driving through the water

Stay off the brake until the vehicle slows down on its own

if you are driving on straight level highway at 50 mph with no vehicles in front of you and your tire blows out, this is what you do first

engine overheating statement

never remove radiator cap on a pressurized system until the system has cooled

brake pedal goes to the floor, whats true

pumping the brake pedal may bring the pressure up so you can stop the vehicle

you are asked to deliver hazardous materials in a placarded vehicle but do not have a hazardous materials endorsement on your cdl

refuse to haul load

checking wheels and rims for pretrip inspection whats true

rust around wheel nuts may mean theyre loose

true about staying alert to drive

sleep is the only thing that can overcome fatigue

checking steering and exhaust in pretrip inspection. which problem if found should be fixed before the vehicle is driven

steering wheel play of more than 10 degrees leaks in an exhaust system a small leak of power steering fluid

which of these a good thing to remember about mirrors

there are blind spots that your mirror cant show u

proper use of vehicle lights?

turning on your headlights during the day when visibility is reduced due to rain or snow flashing brake lights to warn someone behind u of a hazard requiring slower speeds flashing your brake lights to warn someone behind you youre going to stop on the road

Which of these items is checked in a pre trip inspection?

whether all vehicles lights are working and clean wiper blades cargo sacrament

brake fade

Can be caused by the brakes becoming too hot.

when driving at night

adjust your speed to keep stopping distance in sight

which of these statements about accelerating is true

b. rough acceleration can cause mechanical damage

Which of these statements is a good rule to follow when backing your vehicle a. rely only on mirrors for all info on your path b. use the highest reverse gear when backing c. back and turn toward passenger side d. use a helper whenever possible

d. use a helper whenever possible

remember when crossing or entering traffic with a heavy vehicle

heavy vehicles need larger gaps in traffic than cars

driving heavy manual vehicle, you have to stop on shoulder while driving on an uphill grade. what is good rule to follow when putting it back in motion up the grade

use parking brake to hold vehicle until clutch engages

stop driving

whenever u get sleepy

controlled braking

Is used to keep a vehicle in a straight line when braking.