TENNESSEE CDL DOUBLES TRIPLES PRACTICE TEST
11.
If your vehicle thumps or vibrates heavily, it may be a sign that:
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the brakes have failed.
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one of the tires has gone flat.
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you need to shift up.
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the engine belt is loose.
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12.
To prevent rollover, you should:
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put the lightest parts of the cargo under the heaviest parts.
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keep the cargo as close to the ground as possible.
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place the cargo near the front of the trailer.
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place the cargo near the rear of the trailer.
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13.
Which of the following will off-track the most?
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The front wheels of the last trailer.
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The rear wheels of the tractor.
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The front wheels of the tractor.
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The rear wheels of the last trailer.
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14.
When driving, you should check mirrors regularly to know where other vehicles are around you. Remember that:
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convex mirrors make things look larger and closer than they really are.
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every registered motor vehicle must have at least one mirror.
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you should check your after the start of any trip to make sure they are properly adjusted.
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there are blind spots that your mirrors cannot show you.
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15.
Too little weight on the driving axles can cause:
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poor traction.
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longer stopping distances.
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poor visibility.
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mechanical damage.
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16.
If an item placed on a flatbed trailer is 7 feet long, it should have __ tie-downs.
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1
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2
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7
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3
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17.
When backing, you should:
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use the mirrors on both sides.
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back and turn toward the right side whenever possible.
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only use mirror on the driver's side.
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back quickly.
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18.
When parked on the side of the road, you should:
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use the 4-way emergency flashers.
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turn off all lights.
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activate the right turn signal.
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flash your brake lights.
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19.
Truck tractors with air brakes built after March 1, 1997, are required to be equipped with:
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hydraulic brakes.
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GPS
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a rear backup camera.
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anti-lock brakes.
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20.
You can determine if your vehicle is equipped with ABS (anti-lock braking system) by:
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checking if your vehicle was manufactured after March 1, 1998.
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checking for a yellow ABS malfunction lamp on the instrument panel.
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looking for wheel speed sensor wires coming from the rear of your brakes.
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All of the above.
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