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

How much you drink
How frequently you drink
The temperature of the drink
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2 . When nearing a construction worker who is close to the road, you should:

Increase your speed.
Decrease your speed.
Not drive in any lane.
Wait until the construction is complete before proceeding.
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3 . To prevent a trailer from rolling over, you should:

Drive on the shoulder.
Drive only in the left lane.
Speed up when approaching corners.
Keep the weight of cargo low.
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4 . How do ice cream trucks become hazardous to other drivers?

Ice cream trucks must be kept cold.
Children often run toward an ice cream truck without looking for other traffic.
Ice cream trucks leave trails of water and ice on the roadway.
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5 . 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.
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6 . When conducting a check of the engine compartment during a vehicle inspection, you should not:

Check the engine oil level.
Check the coolant level.
Drain the brake fluid.
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7 . A thin layer of ice that forms on road surfaces is called:

White ice.
Black ice.
Green ice.
Blue ice.
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8 . To test the trailer service brakes, you should:

Move the vehicle forward slowly and apply the brakes with the brake pedal.
Reverse the vehicle slowly and apply the brakes with the hand control.
Reverse the vehicle slowly and apply the brakes with the brake pedal.
Move the vehicle forward slowly and apply the brakes with the hand control.
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9 . Maintain a following distance of at least ____ for every 10 feet of your vehicle if you are traveling at a speed under 40 mph.

One second
Two seconds
Three seconds
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10 . Most heavy trucks with manual transmissions require ____ to change gears.

Single clutching
Double clutching
Triple clutching
Quadruple clutching
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11 . If carrying a heavy load that is slowing you down, you should:

Drive in the left lane.
Drive in the right lane.
Drive on the shoulder.
Keep the vehicle in second gear.
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12 . The “crack-the-whip” effect for doubles and triples is:

Never a problem.
Only a problem if it is raining.
A serious concern.
Rarely an issue.
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13 . Before beginning to drive downhill, you should:

Take your vehicle out of gear.
Shift into a lower gear.
Move into the left lane.
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14 . A pre-trip inspection:

Should never be completed the same way two times in a row.
Should always be completed in the same order.
Should only be done if it is sunny outside.
Should not be done if the driver thinks the vehicle is in good operating order.
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15 . Texting while driving a CMV is:

Acceptable if the text is work-related.
Acceptable if there are fewer than 10 words in the text message.
Encouraged because it is safer than talking on the phone.
Prohibited.
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16 . The trailer hand valve should not be used while you are driving because:

It will disconnect from the vehicle.
You will stop the vehicle too quickly.
It can cause a skid.
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17 . Pull out the trailer air supply control to test:

The parking brake.
The trailer emergency brakes.
The trailer service brakes.
The landing gear.
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18 . Antifreeze helps to keep an engine functioning properly:

But only if it is cold outside.
To be more fuel efficient.
Both when it is cold and hot outside.
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19 . Which of the following is a good rule to follow when making a turn?

Honk your horn.
Use your arms to get the attention of other drivers.
Turn off your turn signal before entering the turn to avoid confusing other drivers.
Signal early.
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20 . 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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