1 . 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
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2 . ____ is a thin layer of ice that forms on road surfaces.

White ice
Black ice
Green ice
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3 . You should always be able to stop within:

10 feet of your vehicle.
100 feet of your vehicle.
Your view of the road ahead.
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4 . When backing a truck, you should:

Only use the side mirrors on the driver’s side of the vehicle.
Use both side mirrors.
Not use a helper.
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5 . Move over laws require:

Emergency vehicles to steer away from moving traffic.
Drivers to move into lanes that are not next to stopped law enforcement vehicles.
All vehicles to use the left lane.
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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.
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7 . Texting while driving is:

Allowed if you are contacting your employer.
Allowed when driving on rural roads.
Not allowed.
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8 . While driving a vehicle, if an unusual noise or feeling occurs, the driver should:

Assume it is not a concern and continue driving.
Hope the vehicle makes it until it is switched to another driver.
Check out the situation to determine the proper solutions.
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9 . During the vehicle inspection test, you will be asked to:

Change a tire.
Explain to the examiner what you are inspecting and why.
Estimate the weight of a load on a trailer.
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10 . Emergency equipment, such as fire extinguishers, are:

Only needed in vehicles transporting hazardous materials.
Only needed for interstate travel.
Required in all commercial motor vehicles.
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11 . In the case of an engine fire, you should not:

Turn off the engine as soon as possible.
Shoot foam through the louvers.
Open the hood.
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12 . Rims with welding repairs:

Are not safe to be used.
Are acceptable to be used on tires on the rear of a vehicle.
Are acceptable to be used only when carrying a heavy load.
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13 . When doing a pre-trip inspection, you should:

Always go through the steps in the same order.
Be as quick as possible.
Not worry about small mechanical issues.
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14 . To stay alert while driving, you should:

Eat a heavy meal before beginning your trip.
Keep the cab warm.
Ride with a second person who can share driving responsibilities.
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15 . How much water must be present for a vehicle to hydroplane?

Usually several inches
A good amount, such as a large puddle
A small amount
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16 . If feeling drowsy while driving, you should:

Press on and finish the trip.
Drive faster to reach your destination more quickly.
Safely leave the road and take a nap.
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17 . After an accident, flares should be used with caution because:

There may be fuel spilled on the ground that could catch fire.
Other drivers may not see the flares if the weather is sunny.
Flares are expensive.
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18 . As part of the vehicle inspection test, a CDL applicant will be asked to:

Check the engine oil level.
Replace a tire.
Remove the alternator belt.
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19 . When transporting cargo, drivers must check the securement of the cargo every:

10 miles.
150 miles.
500 miles.
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20 . Stopping distance can be affected by:

Driving speed.
Temperature.
Time of day.
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