UTAH DOUBLES TRIPLES PRACTICE CDL TEST
11.
You must have at least 4/32 inch tread depth in every major groove on front tires and at least ___ inch on other tires.
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1/32
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4/32
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3/32
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2/32
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12.
You as a driver should always:
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stay in your lane.
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drive slowly in the left lane of traffic.
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make emergency plans when you see a hazard.
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reduce your following distance.
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13.
When should you be particularly careful about high winds?
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When driving at night
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When driving in winter
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When emerging from a tunnel
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When going downhill
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14.
Which of the following is not a type of retarder?
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Electric
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Exhaust
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Pressure
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Hydraulic
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15.
To start moving without rolling back, you should:
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apply the trailer brake hand valve.
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put on the parking brake whenever necessary.
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partly engage the clutch before you take your right foot off the brake.
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All of the above.
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16.
If your trailer starts to skid, you should:
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release the brakes.
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steer in the opposite direction.
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lock the brakes.
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pump the brakes.
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17.
Engine oil pressure should come up to normal within _________ after the engine is started.
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two minutes
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seconds
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ten minutes
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five minutes
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18.
Pre-trip inspections of doubles and triples should:
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take more time than inspecting straight trucks.
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be done by the shipper.
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be done once a week.
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take less time than inspecting straight trucks.
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19.
Enough tread is especially important in winter conditions. You need at least ________ tread depth on steering axle tires.
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8/32 inch
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6/24 inch
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2/8 inch
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4/32 inch
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20.
When inspecting the coupling, make sure the fifth-wheel jaws have closed around the:
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shank of the kingpin.
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the electrical cord.
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head of the kingpin.
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the brake camshaft.
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