KENTUCKY CDL DOUBLES TRIPLES PRACTICE TEST
11.
What happens when the center of gravity of a truck moves higher up from the road?
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It becomes much easier to downshift at the right rpm.
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The vehicle is more stable while turning.
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It is easier it is to turn around corners.
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The truck becomes easier to turn over.
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12.
Emergency equipment is:
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encouraged.
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only required when transporting hazardous materials.
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required.
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optional.
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13.
Too much weight on the steering axle can cause:
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poor traction.
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hard steering and damage to the steering axle and tires.
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better handling.
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None of the above.
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14.
You are driving a heavy vehicle with a manual transmission, and you have to stop on the shoulder while driving on an uphill grade. When putting your vehicle back in motion up the grade, you should:
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use the parking brake to hold the vehicle until the clutch engages.
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keep the clutch slipping while slowly accelerating.
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partly engage the clutch before you take your right foot off the brake.
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shift down to a speed that you can control without using the brakes.
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15.
When approaching a double railroad track, you should:
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remember that a train on one track may hide a train on the other track.
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remember that trains may be more frequent.
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expect to hear a train when it's approaching.
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rely upon the presence of warning signals.
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16.
A low air pressure warning signal:
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is optional on vehicles with air brakes.
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is required on all vehicles without air brakes.
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is required on vehicles with air brakes.
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None of the above.
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17.
Before connecting the converter dolly to the rear trailer, make sure that:
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the trailer height is slightly lower than the center of the fifth-wheel.
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the locking jaws rest on the kingpin.
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the kingpin rests on the fifth-wheel.
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the shut-off valves at the rear of the first trailer are open.
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18.
To reduce the chance of rollover, you should:
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place the cargo as high as possible inside the trailer.
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distributed the cargo as low as possible inside the trailer.
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put the lightest parts of the cargo under the heaviest parts.
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None of the above.
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19.
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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3/32
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1/32
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4/32
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2/32
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20.
Dual tires:
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should always come in contact with each other.
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should come in contact with each other whenever possible.
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should not come in contact with each other.
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are dangerous.
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