COMBINATION TEST UTAH - PRACTICE TEST
11.
Longer combination vehicles have the tendency to swing wide on turns. This is called:
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off-tracking.
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jackknifing.
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hydroplaning.
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rollover.
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12.
Do not use the trailer hand valve in driving because:
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of the danger of making the trailer skid.
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the trailer emergency brakes will come on.
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the brakes can overheat and lose their braking power.
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All of the above.
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13.
Strong winds can make it difficult to stay in your lane especially when driving:
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vehicles with ABS.
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heavier vehicles.
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lighter vehicles.
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flatbed trailers.
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14.
When you back under a trailer:
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back the tractor slowly.
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make sure the trailer brakes are locked.
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use lowest reverse gear.
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All of the above.
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15.
What is the minimum tread depth for tires other than front tires?
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2/32 inch
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8/32 inch
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4/16 inch
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4/32 inch
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16.
When parking, you should choose a spot:
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that requires backing up.
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that allows you to pull forward when you leave.
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that allows you do a walk around inspection.
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All of the above.
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17.
At speeds below 40 mph, you should leave at least one second in front of you for each ___ feet of vehicle length.
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30
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5
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10
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20
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18.
When driving trucks with trailers, drivers should:
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avoid making sudden movements with the steering wheel.
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decrease their following distance.
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push the brake pedal to the floor when braking.
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make quick lane changes.
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19.
If you must drive slowly, how should you alert following drivers?
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Use your emergency flashers if it is legal
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Help them out by signaling when it is safe to pass
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Turn on your taillights
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Flash your brake lights
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20.
Overloading a vehicle with cargo can have negative effects on all of the following except:
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Steering
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Weight limits
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Speed control
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Braking
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