KENTUCKY CDL DOUBLES TRIPLES PRACTICE TEST

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