Take District Of Columbia CDL Class A Knowledge Test 2

QUESTION 1 / 25

Which of the following is not a sign of bad brake drums or shoes?

Choose one answer below.

ACracked drums✓BPads with oil on them✓CShoes worn thin✓DShoes that are not covered in brake fluid✓

QUESTION 2 / 25

What is a wig wag?

Choose one answer below.

AA type of warning system✓BA tube used to move air from the compressor to the tanks✓CA noise made by air brakes when used✓DA part within the braking unit that allows air to move freely✓

QUESTION 3 / 25

In bad weather, many drivers:

Choose one answer below.

ALike to drive in front of trucks.✓BLike to be on the side of trucks.✓CLike to follow trucks.✓DLike to drive without using their lights.✓

QUESTION 4 / 25

If you’re not sure how to handle a fire, you should:

Choose one answer below.

AUse water.✓BStay inside the vehicle.✓CWait for the firefighters.✓DKeep the vehicle running.✓

QUESTION 5 / 25

What should happen if the air pressure in the braking system's air tanks falls below 60 psi?

Choose one answer below.

AThe warning light will come on.✓BThe vehicle will not shift out of gear.✓CThe front lights will flash.✓DThe steering wheel will lock up.✓

QUESTION 6 / 25

On newer vehicles, how do you put on the parking brake?

Choose one answer below.

AMove a lever to the right.✓BPush in the yellow, diamond-shaped knob.✓CPull out the yellow, diamond-shaped knob.✓DPull up on the steering column.✓

QUESTION 7 / 25

Which of the following is not a sign of fatigue?

Choose one answer below.

AAbility to focus✓BDaydreaming✓CYawning repeatedly✓DDrifting from your lane✓

QUESTION 8 / 25

A stopped bus:

Choose one answer below.

AIs not a cause for concern.✓BIs not a concern if passengers are not unloading.✓CShould not be on the roadway.✓DIs a concern, whether passengers are visible or not.✓

QUESTION 9 / 25

Leaking shock absorbers:

Choose one answer below.

AAre normal.✓BIndicate a potentially dangerous defect.✓CWill prevent the turn signals from working.✓DPose no threat if the vehicle is only driven on highways.✓

QUESTION 10 / 25

While driving, you should:

Choose one answer below.

ADevelop plans to get out of any dangerous situation that could arise.✓BEnjoy the scenery.✓CNever look at the mirrors.✓DFocus on your own driving and not worry about other drivers.✓

QUESTION 11 / 25

What is removed when an air tank is drained?

Choose one answer below.

AWater and oil✓BAmmonia✓CWood✓DChlorine✓

QUESTION 12 / 25

To make it as safe as possible to leave a stop, you should park:

Choose one answer below.

ASo that you must back up to leave your parking space.✓BSo that you can pull forward to leave your parking space.✓COn the side of a roadway, not in a parking lot.✓DBy backing into a parking space.✓

QUESTION 13 / 25

When trying to avoid a hazard:

Choose one answer below.

AStopping is always effective.✓BSwerving may be more effective than stopping.✓CYou may change lanes without looking.✓DYou should drive on the shoulder.✓

QUESTION 14 / 25

What is sleep debt?

Choose one answer below.

AWhen you fall behind on sleep✓BWhen you want to take a nap✓CExcess sleep✓DThe amount of time it takes to get ready to drive after sleeping✓

QUESTION 15 / 25

A registered vehicle should have:

Choose one answer below.

AA mirror on the left side only.✓BMirrors on both the left and right sides.✓CA mirror on the right side only.✓DOnly a rearview mirror.✓

QUESTION 16 / 25

Bent lock rings:

Choose one answer below.

AAre acceptable.✓BAre not a concern in dry weather.✓CAre dangerous.✓DCan lengthen tire life.✓

QUESTION 17 / 25

Laws about securing loads and regulating CMV weights may vary from state to state. During interstate travel:

Choose one answer below.

AThe law of the state in which the trip originated takes precedence.✓BThe law of the state the vehicle is in takes precedence.✓CThe driver should request federal regulations to override conflicting state laws.✓DThe driver can choose which state’s laws to follow.✓

QUESTION 18 / 25

Which of the following could reduce the amount of space between the road surface and an overhead object, such as a bridge?

Choose one answer below.

AA repaving of the road✓BWind✓CAn increased amount of traffic✓DRain✓

QUESTION 19 / 25

Which of the following is not an example of a distracted person that motorists should be worried about?

Choose one answer below.

AA driver talking to a passenger in their vehicle✓BA child on the side of the road✓CA construction worker on the side of the road✓DA person sitting on a bench waiting for a bus✓

QUESTION 20 / 25

Alcohol is removed from the body:

Choose one answer below.

AAt a rate that changes depending on how much alcohol is in the body.✓BAt a consistent rate, regardless of how much alcohol is in the body.✓CMore quickly if the person drinks coffee.✓DMore quickly if the person stays awake.✓

QUESTION 21 / 25

You should always be able to stop within:

Choose one answer below.

A10 feet of your vehicle.✓B1,000 feet of your vehicle.✓CYour view of the road ahead.✓DA minute of hitting the brakes.✓

QUESTION 22 / 25

If you realize you may be running late to your destination, you should:

Choose one answer below.

ADrive faster.✓BDrive while using flashing lights so other road users move out of your path.✓CDrive at a safe speed and arrive when you arrive.✓DGet upset.✓

QUESTION 23 / 25

Before a vehicle with dual air brakes is driven, pressure of at least ____ should be built up in both braking systems.

Choose one answer below.

A10 psi✓B25 psi✓C50 psi✓D100 psi✓

QUESTION 24 / 25

Black ice is:

Choose one answer below.

AUsually thick – about half an inch or more of ice.✓BUsually thin.✓CNot a hazard when driving.✓DNot really ice.✓

QUESTION 25 / 25

Of the following, which is not a way to prevent drowsiness during a trip?

Choose one answer below.

AGetting an adequate amount of sleep before driving✓BTraveling with a passenger✓CScheduling trips during hours when you would not normally be awake✓DAvoiding medications that may cause drowsiness✓