WA CDL PRACTICE TEST - GENERAL KNOWLEDGE
41.
Which of the following may have reduced the clearances since the heights were posted at bridges and overpasses?
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Rain
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The weight of a cargo
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Repaving of the road
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42.
If your vehicle is equipped with a front brake limiting valve, to ensure normal stopping power make sure the control is:
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in the "normal" position.
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in the "slippery" position.
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in the "neutral" position.
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43.
When transporting a load, the cargo should be inspected:
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after every break you take during your trip.
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only after driving.
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by a helper.
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44.
The earliest way to recognize that your trailer has started to skid is:
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by checking your mirrors.
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by checking the jackknife sensor.
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by releasing the brakes.
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45.
Under-loaded front axles:
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can improve traction.
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can make the steering axle weight too light to steer safely.
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can cause tire failure.
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46.
Tar in the road pavement often rises to the surface in very hot weather. Spots where the tar "bleeds":
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have good traction.
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are very slippery.
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will help you get better gas mileage.
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47.
If your vehicle is equipped with a retarder, you should turn it off:
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when you are driving in heavy traffic.
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when you are running late.
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whenever the road is wet, icy, or snow covered.
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48.
Your vehicle has automatic transmission. When going down grades, you should:
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select a low range to get greater engine braking.
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put the gearshift in "Park".
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select a high range to get greater engine braking.
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49.
If you experience a loss of hydraulic pressure, you should do all of the following except:
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Pump the brakes
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Put the transmission in Neutral
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Downshift
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50.
A tank endorsement is:
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required for both liquids and gases.
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only required when transporting liquids.
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only required when transporting gases.
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