MT CDL COMBINATION PRACTICE TEST
11.
Having ABS on only the trailer:
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makes the trailer more likely to swing out.
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still gives you more control over your vehicle during braking.
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is very dangerous.
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makes the trailer more likely to roll over.
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12.
Where are shut-off valves?
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On converter dollies.
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At the front and back of each trailer.
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At the back of each trailer.
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At the front of each trailer.
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13.
Longer combination vehicles have the tendency to swing wide on turns. This is called:
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jackknifing.
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hydroplaning.
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off-tracking.
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rollover.
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14.
If you try to couple when the trailer is too low:
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the tractor may strike and damage the trailer nose.
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the tractor could roll away.
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it might not couple correctly.
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All of the above.
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15.
If you are being tailgated, you should:
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flash your brake lights.
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increase your following distance.
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speed up.
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move to the left lane.
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16.
Which of the following is NOT a way to determine if your trailer is equipped with ABS (antilock braking system)?
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The letters "ABS" are printed on the side of the steering wheel.
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It was built after March 1, 1998.
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It has yellow ABS malfunction lamps.
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Wheel speed sensor wires are coming from the back of the brakes.
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17.
What should you do if your vehicle gets stuck on the railroad tracks?
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Get out of the vehicle and away from the tracks as quickly as possible, then call 911.
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Turn on the emergency flashers and call 911.
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Stay inside the vehicle and call 911.
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Call 911, then get out of the vehicle and away from the tracks.
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18.
You have two tie-downs on a 15 foot load. How many more tie-downs do you need to secure cargo and keep it from shifting or falling?
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Two
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None
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One
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Three
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19.
Which of the following is NOT part of inspecting the coupling?
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Checking for enough clearance between the rear of the tractor frame and the landing gear.
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Making sure the fifth-wheel jaws have closed around the shank of the kingpin.
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Making sure there is no space between the upper and the lower fifth-wheel
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Checking that the locking lever is in the "lock" position
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20.
When backing a trailer on a curved path you should back towards:
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neither side (back up straight).
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either side.
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the driver's side.
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the passenger's side.
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