CDL PRACTICE TEST - GENERAL KNOWLEDGE (IOWA)
41.
Before starting down a hill, you should:
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slow down and shift to a lower gear.
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release the accelerator and shift to Neutral at the same time.
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look for an escape route.
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42.
The vehicle inspection report:
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ensures that vehicle inspections are conducted regularly.
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tells the motor carrier about problems that may need fixing.
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ensures that when the driver gets behind the wheel, the mechanic is responsible for the safe operation of the vehicle.
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43.
You should always back and turn toward the driver's side:
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unless you have someone to help you.
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unless it means having to go around the block first.
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so you can watch the rear of your vehicle by looking out the side window.
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44.
Emergency equipment is:
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optional.
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required.
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only required when transporting hazardous materials.
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45.
When changing lanes, you should:
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do it quickly so other vehicles won't get into the lane.
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turn sharply.
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do it slowly, so a driver you did not see may have a chance to honk their horn.
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46.
Brake lag is:
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the time required for the air brakes to work after the brake pedal is pushed.
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the distance your vehicle will travel, in ideal conditions, while you are braking.
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the amount of air pressure required to stop the vehicle.
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47.
Drivers should use their horn when needed, however they must be aware that using the horn:
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can startle other drivers.
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consumes the battery.
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damages your hearing.
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48.
Drivers should check and adjust their mirrors:
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before starting a trip.
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after a trip.
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while driving.
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49.
Which of these is a possible consequence of forcing an automatic transmission into a lower gear at high speed?
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Loss of all engine braking effect
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Loss of steering control
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Loss of hydraulic pressure
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50.
If your vehicle is hydroplaning, you should:
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release the accelerator and push in the clutch.
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use the brakes to slow down.
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accelerate to get through the water as quickly as possible.
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