Knowledge Test Class B - New Mexico Cdl

1 . In a dual air brake system:

Air tanks are shared between both systems. Each system has its own air tanks. You must designate which system you are using. Click Here Full Cheat Sheet

2 . On slippery roads, you should:

Accelerate and slow down frequently. Adjust your driving to match weather conditions. Tailgate other vehicles. Take a FREE Practice Test Now

3 . A low air pressure warning signal should activate:

When tank pressure falls below 120 psi. When tank pressure falls below 60 psi. When tank pressure falls below 10 psi. When tank pressure falls below 5 psi. Take a FREE Practice Test Now

4 . Some air brake systems introduce alcohol into the system to:

Make the brakes work without squeaking. Prevent ice from forming in the brake system. Prevent people from breathing the air from the system. Take a FREE Practice Test Now

5 . When alley docking, you should first:

Position your vehicle directly in front of the alley. Back up directly in front of the alley. Stop parallel to the outer boundary of the alley. Click Here Full Cheat Sheet

6 . While operating on a downgrade, you should brake until you reach a speed that is:

5 mph below your safe speed. 10 mph below your safe speed. 15 mph below your safe speed. Take a FREE Practice Test Now

7 . When pulled over to the side of the road, you should:

Rely on your taillights to alert other motorists to your presence. Not worry about other motorists. Use your four-way emergency flashers to alert other motorists to your presence. Take a FREE Practice Test Now

8 . When loading a trailer, the heaviest cargo should be placed:

On top of the lightest parts of the cargo. Under the lightest parts of the cargo. At the rear of the trailer. Take a FREE Practice Test Now

9 . While driving:

Creating a text is not permitted, but reading a text is. Creating a text is permitted, but reading a text is not. Neither creating nor reading a text is permitted. Click Here Full Cheat Sheet

10 . The ____ between an air compressor and reservoir tank prevents air from escaping if the air compressor has a leak.

Slack adjuster One-way check valve Tractor protection valve Take a FREE Practice Test Now

11 . Which of the following is acceptable if found during a pre-trip inspection?

Tires of mismatched sizes Cracks in the tires Tires manufactured by different makers Take a FREE Practice Test Now

12 . When asked to make a lane change during the driving test, you should:

Make the change as soon as the examiner asks, without looking. Use your turn signal and change lanes when safe. Make the lane change as quickly as possible, even if that means cutting off another driver. Take a FREE Practice Test Now

13 . When applying for a hazardous materials endorsement, being found guilty of which of the following is a disqualifying offense?

Arson Speeding Littering Click Here Full Cheat Sheet

14 . A lane change:

Should be done quickly. Should be done slowly. Should be done with a jerking motion. Take a FREE Practice Test Now

15 . If confronted by an aggressive driver, you should:

Keep your vehicle in front of them. Make eye contact with them Ignore their gestures. Take a FREE Practice Test Now

16 . 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. Take a FREE Practice Test Now

17 . When making a left turn, you should start the turn:

Before reaching the center of the intersection. No sooner than the center of the intersection. After your rear wheels have passed the center of the intersection. Click Here Full Cheat Sheet

18 . Which of the following does not indicate bad brakes?

Cracked drums Pads free of oil or grease Very thin shoes Take a FREE Practice Test Now

19 . Slow down and be extra careful:

When traveling in normal traffic. When driving on dry pavement. When approaching a work zone. Take a FREE Practice Test Now

20 . Hanging meat as cargo is:

Illegal to transport in most states. Always easy to transport. Usually unstable. Take a FREE Practice Test Now

21 . Driving at night is:

Safer than driving during the day. Just as safe as driving during the day. More dangerous than driving during the day. Click Here Full Cheat Sheet

22 . An alcohol evaporator is especially important:

In cold weather. In hot weather. In dry weather. Take a FREE Practice Test Now

23 . When loading a trailer, you should:

Place as little weight as possible over the axles. Place a well-balanced amount of weight over the axles. Not be concerned with how the weight is distributed. Take a FREE Practice Test Now

24 . 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

25 . What can happen if the exhaust system is not working properly?

Poisonous fumes may enter the cab. Fumes may exit the rear of the muffler system. Proper steering may be impossible. Click Here Full Cheat Sheet

26 . When checking power steering hoses during a pre-trip inspection, you should look for:

Leaks. Secure connections to the battery. Extra hose pieces available for repairs. 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 . If involved in an accident, which of the following is not recommended?

Trying to move your vehicle to the side of the road Caring for the injured Driving away from the scene Take a FREE Practice Test Now

28 . Foundation brakes are used:

Only on the front wheels of a vehicle. Only on the rear wheels of a vehicle. On each wheel of a vehicle. Take a FREE Practice Test Now

29 . The effects of alcohol are felt:

With the first drink. Only after several drinks have been consumed. At the legal limit. Click Here Full Cheat Sheet

30 . To ensure normal stopping power, drivers of vehicles equipped with a front brake limiting valve should:

Set the control to normal. Set the control to the off position. Set the control to the neutral position. Take a FREE Practice Test Now

31 . When driving in winter, which of the following should receive extra attention in a pre-trip inspection?

Coolant and antifreeze levels The air conditioning unit The oil pressure Take a FREE Practice Test Now

32 . Which of the following determines your blood alcohol concentration (BAC)?

How much you drink How frequently you drink The temperature of the drink Take a FREE Practice Test Now

33 . Texting while driving is:

Allowed if you are contacting your employer. Allowed when driving on rural roads. Not allowed. Click Here Full Cheat Sheet

34 . When driving under wet conditions, a lack of spray coming from the tires of other vehicles indicates that:

Ice has formed on the road. The pavement is dry. The spray is caught on the underside of the vehicle. Take a FREE Practice Test Now

35 . When encountering a railroad crossing during the driving test, you should:

Pass another vehicle on the tracks if the other vehicle is moving too slowly. Change lanes while on the tracks. Not change gears while on the tracks. Take a FREE Practice Test Now

36 . If your vehicle is hydroplaning, you should:

Use the accelerator. Not use the brakes. Put the vehicle in a higher gear. Take a FREE Practice Test Now

37 . For safety purposes, when should you turn off a retarder?

When the roadways are slippery When you have a passenger When you are carrying a heavy load Click Here Full Cheat Sheet

38 . When experiencing cold weather, be sure to check your vehicle's alcohol evaporator:

Every three hours. Every day. Every other week. 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 . In a vehicle with dual parking control valves, a separate air tank can be used:

To make the air brakes work more effectively. To temporarily release the spring brakes. To charge the brakes on the rear trailer. Take a FREE Practice Test Now

41 . Black ice is:

Usually thick. Usually thin. Not a hazard when driving. Click Here Full Cheat Sheet

42 . When backing a truck, you should:

Only use the side mirrors on the driver’s side. Use both side mirrors. Only use the side mirrors on the passenger's side. Take a FREE Practice Test Now

43 . Air tank drains:

Should not be used in cold weather. Are helpful to remove water and oil from the air tanks. Are used to move air to the brakes. Take a FREE Practice Test Now

44 . The safety belt should:

Not be adjustable. Latch securely. Be frayed. Take a FREE Practice Test Now

45 . When coming to a stop, you should apply the brake pedal by:

Pushing down gradually. Pushing down quickly. Pulling up gradually. Click Here Full Cheat Sheet

46 . On flat surfaces, wheel chocks:

Can be used to prevent a parked vehicle from moving. Make it easier for a parked vehicle to roll. Should only be used on the front driver's side tire. Take a FREE Practice Test Now

47 . 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

48 . When changing lanes:

You should not use your mirrors. You should use your mirrors. You should not use your turn signals. Take a FREE Practice Test Now

49 . When adjusting your mirrors before a trip:

No part of your vehicle should be visible in any mirror. Part of your vehicle should be visible in the mirrors. More than half of each mirror should show the vehicle. Click Here Full Cheat Sheet

50 . Which of the following is not a sign of fatigue?

Difficulty focusing, with frequent blinking Yawning repeatedly or rubbing eyes Staying in your lane Take a FREE Practice Test Now