CDL GENERAL KNOWLEDGE TEST (VERMONT) - PRACTICE TEST
41.
After starting the engine the coolant temperature should:
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rise quickly.
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slowly decrease.
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rise gradually.
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42.
If a trailer does not have spring brakes, to keep the trailer from moving you should:
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use wheel chocks.
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park on a slight decline.
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use the service brakes.
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43.
To use the controlled braking method in an emergency, you should:
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apply the brakes when the wheels lock up.
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apply the brakes as hard as you can without locking the wheels.
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apply your brakes all the way, and release the brakes when the wheels lock up.
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44.
If your vehicle gets stuck on a railroad track, you should:
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get out of the vehicle and walk as far away from the tracks as possible.
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try to re-start the vehicle.
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stay in the vehicle and call for help.
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45.
When you discover a fire, if the trailer doors are hot you should not open them because:
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the temperature of the trailer should not be changed in any way.
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with air many fires do less damage.
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opening the doors lets air in and may make the fire flare up.
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46.
When backing, you should:
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back quickly.
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use the mirrors on both sides.
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only use mirror on the driver's side.
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47.
When driving in very hot weather, the heat will increase the chances of:
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loss of hydraulic pressure.
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tire failure.
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ABS malfunction.
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48.
Escape ramps are:
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reserved for vehicles carrying dangerous goods.
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used to stop runaway vehicles safely.
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reserved for combination vehicles.
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49.
Right after it starts to rain, the road is very slippery. Why?
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Because the water mixes with oil left on the road by vehicles.
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Because black ice may form on the road.
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Because rain is very slippery.
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50.
If the drive wheels begin to spin, you should:
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take your foot off the accelerator.
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apply your brakes all the way.
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accelerate smoothly and change gears as necessary.
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