CDL GENERAL KNOWLEDGE TEST (WASHINGTON) - PRACTICE TEST
41.
When you need to brake, you should warn the drivers behind:
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by changing lanes.
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by flashing your brake lights.
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by making gestures.
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42.
What should you do if you doubt you have safe space to pass under a low bridge?
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Go slowly, and take another route if you are not sure you can make it.
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Increase the weight of your vehicle to clearing under the bridge.
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If no warnings are posted, assume there is enough clearance under the bridge and proceed slowly.
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43.
When driving, you should check your mirrors:
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every 10 seconds.
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only when there may be a problem.
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regularly.
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44.
When driving in foggy conditions you should:
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drive on the shoulder.
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slow down.
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speed up.
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45.
Fully loaded trucks require greater stopping distances than empty vehicles. True or False?
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True, but only if the truck was built after 1998.
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False.
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True, but only on wet surfaces.
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46.
Texting while operating a commercial motor vehicle is:
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acceptable if you are contacting your supervisor.
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illegal.
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acceptable if you are contacting your dispacther.
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47.
When a tire suddenly blows out while you are driving, what should you do first?
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Use controlled or stab braking.
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Hold the steering wheel firmly and stay off the brakes.
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Brake lightly and hold the steering wheel firmly.
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48.
The minimum tire tread depth for all tires other than front tires is:
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4/32 inch
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2/32 inch
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1/32 inch
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49.
You should reject a vehicle until which of the following gets rectified?
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Faulty flashers
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Faulty headlights
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All of the above.
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50.
Before starting down a hill, you should slow down and shift down:
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to a gear that will cause your engine to exceed its redline.
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so you can coast downhill.
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to a speed that you can control without using the brakes hard.
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