Knowledge Test Class B #2 - Louisiana Cdl

1 . Traction is important in:

Safe braking. Properly using turn signals. Operating the horn. Click Here Full Cheat Sheet

2 . Livestock:

Should never be carried on a trailer. Should be placed in the front of a trailer. Can create unstable driving conditions. Take a FREE Practice Test Now

3 . A ____ allows a driver to gradually apply spring brakes.

Modulating control valve Trailer air supply control Relay valve Take a FREE Practice Test Now

4 . When you need to change lanes:

Other vehicles will likely get out of your way. You should change lanes slowly and smoothly. You should wait to change lanes until you are in an intersection. Take a FREE Practice Test Now

5 . If the low air pressure warning signal comes on in a vehicle with air brakes, the driver should:

Test the brakes while driving, but continue driving if nothing seems wrong. Immediately stop driving. Drive with the hazard lights activated. Click Here Full Cheat Sheet

6 . When driving a vehicle, rough acceleration is:

Encouraged at slow speeds. Encouraged at all speeds. Discouraged at all speeds. Take a FREE Practice Test Now

7 . If driving so slowly that you could impede the flow of traffic, you should:

Drive on the shoulder. Drive while using your emergency flashers. Drive without using any lights. Take a FREE Practice Test Now

8 . If you remain in neutral for too long while switching gears:

The vehicle will speed up. You may have trouble putting the vehicle into the next gear. You may kill the engine. Take a FREE Practice Test Now

9 . If a vehicle is accompanied by a vehicle inspection report:

The driver should first inspect the vehicle, then compare their notes with the report. The driver should first look at the report when completing an inspection. The driver should not conduct a pre-trip inspection and should rely only on the report. Click Here Full Cheat Sheet

10 . Mirror adjustment can only be checked properly if:

The trailer is straight. There is no trailer. The vehicle is on a slight incline. Take a FREE Practice Test Now

11 . The steering wheel should be:

Held with both hands. Held with one hand to keep the other hand free. Held with one hand at a time, alternating between hands. Take a FREE Practice Test Now

12 . A driver should:

Always use turn signals when changing lanes. Only use turn signals if there is a vehicle next to them. Not use a turn signal if a lane change is obvious. Take a FREE Practice Test Now

13 . Air tank drains should:

Not be used by the driver. Only be used when it is wet outside. Be used to drain the tanks completely. Click Here Full Cheat Sheet

14 . Belts in the engine compartment should:

Be frayed. Not have excessive wear. Be greasy. Take a FREE Practice Test Now

15 . During a basic vehicle control skills test, a look is when:

A driver checks the gauges on their instrument panel. A driver checks their blind spots. A driver walks to the back of their vehicle to check its position. Take a FREE Practice Test Now

16 . What happens when a vehicle hydroplanes?

The tires lose contact with the road. The trailer disengages from the tractor. The vehicle becomes easier to control. Take a FREE Practice Test Now

17 . Brakes can get out of adjustment quickly, especially:

If they are hot. In the winter time. If they are used frequently. Click Here Full Cheat Sheet

18 . When stopping a manual transmission vehicle, you should:

Push the clutch in when the engine is close to idle. Push the clutch out when the engine is close to idle. Shift into neutral when the engine is close to idle. Take a FREE Practice Test Now

19 . When starting an engine as part of a pre-trip inspection, the driver should:

Listen for unusual noises. Place the engine in first gear. Turn on the heater. Take a FREE Practice Test Now

20 . When approaching your vehicle as part of your pre-trip inspection, you should look for what as a sign of trouble?

A puddle of oil under the vehicle Inflated tires Lug nuts that look tight Take a FREE Practice Test Now

21 . When checking windshield wiper blades, they should be:

Soft. Secure. Brittle. Click Here Full Cheat Sheet

22 . Your CDL will be revoked if:

You want to add an endorsement. Your privilege to operate your personal vehicle is revoked. You have not paid a toll. Take a FREE Practice Test Now

23 . After a vehicle is started, warning lights and buzzers:

Should stay on for several minutes. Should turn off within a few seconds. Should stay on until manually turned off. Take a FREE Practice Test Now

24 . During a pre-trip inspection, belts should be:

Loosened. Checked for tightness. Scrubbed clean. Left alone and not inspected. Take a FREE Practice Test Now

25 . If a speed limit is posted, the posted speed:

Should never be exceeded. May be exceeded if passing another vehicle. May be exceeded if driving in a rural area. Click Here Full Cheat Sheet

26 . When mirrors are properly adjusted:

No part of the vehicle should be visible in the mirrors. A part of the vehicle should be visible in the mirrors. More than half of each mirror should show the vehicle. Take a FREE Practice Test Now

Study tip: Reduce your study time from hours to minutes with a DMV exam “Cheat Sheet” 99.2% of people who use the cheat sheet pass the FIRST TIME Click Here Full Cheat Sheet

27 . On a leaf spring:

Leaves should shift. Leaves can be missing. Leaves should not be broken. Take a FREE Practice Test Now

28 . When checking tires, which of the following should not cause concern?

Too much air pressure Tread of at least 4/32 of an inch on front tires Radial and bias-ply tires used together Take a FREE Practice Test Now

29 . Aggressive driving is:

Operating a vehicle in a selfish or pushy manner. Operating a vehicle with a strong regard for other motorists’ safety. Operating a vehicle in the left lane. Click Here Full Cheat Sheet

30 . When it is difficult to see and you are traveling near other drivers, you should:

Use high beam lights. Use low beam lights. Use only the clearance lights. Take a FREE Practice Test Now

31 . Without engine oil:

A vehicle will get better gas mileage. An engine can be destroyed quickly. The ABS won’t work properly. Take a FREE Practice Test Now

32 . After a tire has been changed, the driver should stop after a short distance of driving to:

Recheck the tightness of the lug nuts. See if rocks have gotten into the tread. Polish the tire. Take a FREE Practice Test Now

33 . When traveling long distances, you should:

Take rest breaks. Drive as fast as possible. Drive through the night. Click Here Full Cheat Sheet

34 . When stopping, the brake pedal should be:

Pressed down quickly with both feet. Pressed down gradually. Lifted up quickly. Take a FREE Practice Test Now

35 . When driving a 50-foot truck at 50 mph, your minimum following distance should be:

Four seconds. Five seconds. Six seconds. Take a FREE Practice Test Now

36 . Hanging meat as cargo is usually:

Easy to transport. Dangerous, due to the possible scent. Unstable. Take a FREE Practice Test Now

37 . If a vehicle's Anti-Lock Braking System (ABS) is malfunctioning:

The vehicle will have no brakes. The vehicle will still be able to brake. The vehicle will likely travel faster than usual. Click Here Full Cheat Sheet

38 . For a hazardous materials endorsement, an applicant will be required to:

Provide their fingerprints and undergo a background check. Provide employment history from the last five years. Provide a list of countries visited within the last 10 years. Take a FREE Practice Test Now

39 . The air storage tanks:

Hold only enough air for one braking cycle. Hold enough air for the brakes to be used several times if the compressor stops working. Do not hold air unless there is an emergency. Take a FREE Practice Test Now

40 . Hanging meat as cargo is usually:

Very stable. Easy to handle. Unstable. Take a FREE Practice Test Now

41 . Air tank drains should:

Only be used by mechanics. Only be used when it is wet outside. Be used to drain the tanks completely. Click Here Full Cheat Sheet

42 . Rough acceleration:

Can damage a vehicle. Is common if a vehicle is warmed up. Is encouraged to improve gas mileage. Take a FREE Practice Test Now

43 . If another driver is tailgating you, you should:

Move into the left lane. Speed up. Increase the distance between you and the vehicle ahead. Take a FREE Practice Test Now

44 . When backing with a trailer, turning toward the driver’s side is encouraged because:

The driver will have the best possible view. Power lines should be on the passenger's side. Other drivers can offer assistance on the passenger's side. Take a FREE Practice Test Now

45 . If a vehicle is equipped with power steering, the hoses should be checked:

For leaks. For the proper amount of brake fluid. To ensure that they are connected to the battery. Click Here Full Cheat Sheet

46 . When accelerating on a surface with poor traction, such as a wet road, a driver should:

Speed up quickly. Speed up slowly. Not be concerned about the pavement. Take a FREE Practice Test Now

47 . If your brakes fail when traveling downhill, decide what to do as quickly as possible because:

The longer you wait, the faster your vehicle will go. The longer you wait, the more vehicles will get out of your way. The longer you wait, the slower your vehicle will go. Take a FREE Practice Test Now

48 . When it’s difficult to see, such as at dawn or dusk, a driver can increase their vehicle's visibility by:

Driving while using their lights. Driving with their windows open. Flashing their lights periodically. Take a FREE Practice Test Now

49 . When starting your vehicle, the coolant temperature should:

Not change. Increase gradually. Quickly jump from low to high. Click Here Full Cheat Sheet

50 . Blocking a load:

Is only done with liquid cargo. Helps to stabilize the load Is dangerous and should never be done. Take a FREE Practice Test Now