CDL DOUBLES PRACTICE TEST ARIZONA
11.
On any upgrade, _________ – the more you will have to use lower gears to climb hills or mountains.
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the longer the grade
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the steeper the grade
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All of the above.
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12.
Air pressure should build up in a single air system, within about:
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10 minutes.
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15 minutes.
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3 minutes.
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13.
If your ABS fails:
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you will still have normal brake functions.
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your tires might grab unexpectedly and you could lose control.
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the first step is to get the vehicle off the road and stop.
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14.
If an aggressive driver confronts you, you should NOT:
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try to let them pass.
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make eye contact.
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ignore gestures.
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15.
If your vehicle is hydroplaning, you should:
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speed up.
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stay off the brake.
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put the vehicle in reverse.
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16.
When a combination vehicle goes around a corner:
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the front and rear wheels follow a different path.
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the driver must keep the rear of your vehicle far away from the curb.
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the rear wheels of the trailer will never off-track.
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17.
By pushing the trailer air supply control knob in, you:
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shut the air off and put on the trailer emergency brakes.
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supply the tires with air.
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supply the trailer with air.
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18.
A low air pressure warning signal:
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is optional on vehicles with air brakes.
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is required on all vehicles without air brakes.
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is required on vehicles with air brakes.
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19.
To know how much space you should keep in front of you when driving at speeds below 40 mph, one good rule says you need at least ______ for each ______ of vehicle length.
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1 second; 10 feet
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2 seconds; 10 feet
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1 second; 5 feet
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20.
When going down a steep downgrade, you should primarily brake using:
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the service brakes.
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the braking effect of the engine.
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the parking brake.
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