ND CDL DOUBLES TRIPLES PRACTICE TEST

11. Which of the following may have reduced the clearances since the heights were posted at bridges and overpasses?
Repaving of the road
Traffic
The weight of a cargo
Rain
12. As you approach off ramps and on ramps, remember:
that braking and turning at the same time can be a dangerous.
that the posted speed limit may be safe for automobiles, but may not be safe for larger vehicles.
to slow down  before you get on the curved part of an off ramp or on ramp.
All of the above.
13. ABS helps you:
drive faster.
stop faster.
brake harder.
None of the above.
14. Which of the following will off-track the most?
The rear wheels of the tractor.
The front wheels of the last trailer.
The front wheels of the tractor.
The rear wheels of the last trailer.
15. You hear a loud "bang" which sounds like a tire blowout. You should:
inspect your tires with your mirrors.
assume you have a tire failure.
check the tires at the next stop.
keep driving as normal.
16. During a walk around inspection of a combination vehicle, drivers should check that:
all locking pins are present and locked in place.
the glide plate is securely mounted to the trailer frame.
the locking jaws are around the shank.
All of the above.
17. When more cargo is piled up in a truck, the center of gravity moves:
to the right side of the truck.
to the left side of the truck.
closer to the ground.
higher up from the road.
18. Hanging meat in a refrigerated truck can be:
a very unstable load with a low center of gravity.
a very stable load if properly distributed.
a very stable load with a low center of gravity.
a very unstable load with a high center of gravity.
19. An ABS system:
decreases your stopping distance.
requires a change in the way you brake.
helps increase a vehicle's stopping power.
is a safety anti-skid braking system.
20. It's very important to distribute the cargo so it is:
as high up as possible.
in the centre of the load.
piled up.
as low as possible.
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