Knowledge Test Class A - Michigan Cdl

1 . The rods in S-cam brakes move the slack adjusters when air pressure is added to the brake chambers. This air pressure is added to the chambers when the driver:

Presses the brake pedal. Uses the emergency brake. Uses the trailer hand valve. Click Here Full Cheat Sheet

2 . If mirrors are dirty before starting a trip:

They will likely become clean after driving a short distance. It should not be a concern. They should be cleaned before the vehicle is driven. Take a FREE Practice Test Now

3 . 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. Take a FREE Practice Test Now

4 . The ____ are activated by an electric switch that is triggered by the brake pedal.

Headlights Turn signals Brake lights Take a FREE Practice Test Now

5 . Reading a text message while driving is:

Encouraged. Allowed only if you are not pulling a trailer. Illegal. Click Here Full Cheat Sheet

6 . A steering wheel should be:

Held with one hand while the other hand rests. Held with both hands to ensure an adequate grip. Released if the vehicle is approaching a bump. Take a FREE Practice Test Now

7 . A CDL is valid for:

One year. Two years. Four years. Take a FREE Practice Test Now

8 . A person must be at least ____ to operate a CMV in intrastate commerce.

18 years old 21 years old 25 years old Take a FREE Practice Test Now

9 . What helps prevent wheel lockup when braking?

An Anti-Lock Braking System (ABS) Air brakes An alternator Click Here Full Cheat Sheet

10 . While driving, ____ generally holds spring brakes in place.

Air pressure Electricity Gasoline Take a FREE Practice Test Now

11 . A truck should be parked:

So that it must be backed up to leave the space. So that it can be pulled forward to leave the space. On the grass. Take a FREE Practice Test Now

12 . Mirrors should be:

Checked only when changing lanes. Checked frequently. Checked only if there is a reason to suspect a problem. Take a FREE Practice Test Now

13 . Cargo should be covered:

To protect people from spillage. To hide the materials. To make it more difficult to steal. Click Here Full Cheat Sheet

14 . Alcohol begins to affect the body:

After only one drink. After several drinks have been consumed. At the legal limit. Take a FREE Practice Test Now

15 . During an inspection, slack adjusters on S-cam brakes should not move more than:

One foot. One centimeter. One inch. Take a FREE Practice Test Now

16 . The air compressor is connected to the:

Transmission. Engine. Radiator. Take a FREE Practice Test Now

17 . When inspecting the windshield before a trip, a person should do all the following, except:

Remove and sharpen the wiper blades. Check the windshield wipers for proper spring tension. Check the wiper blades for damage. Click Here Full Cheat Sheet

18 . What is a retarder?

A device that prevents a vehicle from going too fast A device that prevents a vehicle from being too loud A device that improves a vehicle's gas mileage Take a FREE Practice Test Now

19 . An after-trip inspection should be done:

Once a week. Once a month. After every trip. Take a FREE Practice Test Now

20 . When applying your brakes, the vehicle should:

Pull to one side. Squeak. Not pull to either side. Take a FREE Practice Test Now

21 . When traveling down a hill, you can reduce the amount of required braking by:

Switching into a higher gear. Switching into a lower gear. Switching into neutral. Click Here Full Cheat Sheet

22 . What does the vehicle inspection report do?

Inform the motor carrier about problems that may need fixing Ensure that the vehicle is inspected regularly Keep people accountable for inspecting the vehicle Take a FREE Practice Test Now

23 . If convicted of a traffic violation that suspends your driving privileges on your regular operator or chauffeur license:

Your CDL will be unaffected. Your CDL will be revoked. A judge will decide if your CDL will be suspended. Take a FREE Practice Test Now

24 . When should a driver sign a vehicle inspection report?

After every trip If noted defects are repaired After each fueling Take a FREE Practice Test Now

25 . A seasonal restricted CDL is available to:

Bus drivers. Agri-business employees. Hazardous materials drivers. Click Here Full Cheat Sheet

26 . The minimum acceptable tread depth for rear tires is:

1/64 of an inch. 1/32 of an inch. 2/32 of an inch. 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 . Which of the following is not a reason to cover cargo?

To protect people from spilled cargo To protect the cargo from weather To protect the cargo from animals Take a FREE Practice Test Now

28 . When starting an engine:

The brakes will lock up. Warning lights should turn on, then quickly turn off. Coolant temperatures should decrease. Take a FREE Practice Test Now

29 . If the low air pressure warning signal comes on, you should:

Continue driving, but have the brakes repaired within a week. Pull over and inspect the brakes. Phone a mechanic while driving. Click Here Full Cheat Sheet

30 . Which of the following is not a reason to cover cargo?

To protect people from spilled cargo To protect the cargo from weather To keep the cargo a secret Take a FREE Practice Test Now

31 . How many daily hours of sleep does an adult need to maintain alertness?

Six to seven Seven to eight Eight to nine Four to five Take a FREE Practice Test Now

32 . 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. Take a FREE Practice Test Now

33 . What is axle weight?

The weight transmitted to the ground by one axle The weight of one axle How much weight an axle can hold Click Here Full Cheat Sheet

34 . 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

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 . A driver should ensure that:

The truck is overloaded. The truck is properly loaded. The cargo is mostly in the front of the trailer. Take a FREE Practice Test Now

37 . Rims with welding repairs:

Are not safe to use. Are acceptable to be used on tires in the rear of the vehicle. Are acceptable to be used if carrying a light load. Click Here Full Cheat Sheet

38 . Refusing a preliminary breath test (PBT) will result in:

A warning. Being asked to stay in place for an hour before driving. Being placed out-of-service for 24 hours. Take a FREE Practice Test Now

39 . What is the number one cause of death and injury in a work zone?

Drivers speeding Slow drivers Animals crossing the road Take a FREE Practice Test Now

40 . On a slippery surface, stopping distance:

Is longer than on a regular driving surface. Is not as long as on a regular driving surface. Is about the same as on a regular driving surface. Take a FREE Practice Test Now

41 . When starting from a stop:

A vehicle should shift to the right. A vehicle should be put into third gear. A vehicle should not roll back. Click Here Full Cheat Sheet

42 . Radial and bias-ply tires:

Should be used together. Should be used together on the front of a vehicle. Should not be used together. Take a FREE Practice Test Now

43 . Anti-Lock Braking Systems (ABS):

Reduce a vehicle's normal braking capacity. Are in addition to other braking systems and do not reduce a vehicle's braking power. Are not effective on larger vehicles. Take a FREE Practice Test Now

44 . An Individual Vehicle Distance Record (IVDR) does not need to include which of the following?

The dates of a trip The total distance traveled The number of vehicles passed Take a FREE Practice Test Now

45 . To use the controlled braking method, you should:

Lock your wheels while braking. Apply your brakes as firmly as possible without locking the wheels. Slightly tap the brakes. Click Here Full Cheat Sheet

46 . Poisonous fumes can enter a cab due to:

A defective exhaust system. Using the wrong type of fuel. A lack of oil in the engine. Take a FREE Practice Test Now

47 . 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. Take a FREE Practice Test Now

48 . What should happen before the air pressure in an air brake system tank falls below 55 psi?

The warning light should activate. The vehicle will be unable to shift out of gear. The front lights should flash. Take a FREE Practice Test Now

49 . While driving, gauges are:

Unreliable. Unpredictable. To be monitored for potential signs of trouble. Click Here Full Cheat Sheet

50 . When changing lanes, turn signals:

Should not be used. Should only be used if a vehicle is close to you. Should be used each time. Take a FREE Practice Test Now