RI CDL COMBINATION PRACTICE TEST
11.
The only way to stop a front-wheel skid is to:
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supply more power to the drive wheels.
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let the vehicle slow down.
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countersteer.
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12.
Which of the following is NOT part of inspecting the coupling?
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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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Checking for enough clearance between the rear of the tractor frame and the landing gear.
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13.
If you are driving a 30 foot vehicle at 35 mph, you should leave at least _______ between your vehicle and the vehicle in front of you.
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3 seconds
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4 seconds
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2 seconds
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14.
If you let air out of hot tires:
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as the tire cools, the air pressure will be too low.
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air pressure will increases, causing the tires to blow out.
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the tires will cool off much sooner.
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15.
As part of the final air brake check, you should:
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Test air leakage rate.
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Check air compressor governor cut-in and cut-out pressure.
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All of the above.
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16.
Which of the following statements about off-tracking is true?
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If there is more than one trailer, the rear wheels of the last trailer will off-track the most.
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When a vehicle goes around a corner, the rear wheels follow the same path as the front wheels.
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Longer vehicles off-track less.
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17.
To know how much space you should keep in front of you when driving at speeds below 40 mph, one good rule says you need at least ______ for each ______ of vehicle length.
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1 second; 5 feet
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2 seconds; 10 feet
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1 second; 10 feet
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18.
When driving on slippery surfaces, you should:
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change lanes often.
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make turns as quickly as possible.
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not pass slower vehicles unless necessary.
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19.
When coupling, you should:
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make sure the trailer wheels are not chocked.
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be aware that wrong coupling and uncoupling can be very dangerous.
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make sure the trailer kingpin is bent.
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20.
How many red reflective triangles should you carry?
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3
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5
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2
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