Colorado CDL Practice Test - General Knowledge
11.
To keep your vehicle from rolling back when you start, you should:
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apply the emergency brake whenever necessary.
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partly engage the clutch before you take your foot off the brake.
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pump the brakes.
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turn the engine off before you take your foot off the brake.
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12.
If you must drive slowly, how should you alert following drivers?
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Use your emergency flashers if it is legal
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Flash your brake lights
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Help them out by signaling when it is safe to pass
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Turn on your taillights
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13.
In order to protect yourself and others, you must be aware that children may do something hazardous because:
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they tend to act quickly without checking traffic.
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they don't have a driving license.
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they are often found in school zones.
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they tend to like trucks.
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14.
Rough acceleration can cause:
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mechanical damage.
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damage electrical and brake lines.
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tire damage.
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All of the above.
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15.
The most important hand signal you should agree on with a helper is:
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Stop
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Go
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Slowly
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Keep backing
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16.
The low air pressure warning light is usually:
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yellow.
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blue.
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red.
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orange.
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17.
When the road is very slippery, you should:
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apply the brakes often to keep the linings dry.
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use the parking brake instead of the service brake.
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downshift to stop.
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stop at the first safe place.
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18.
When backing, you should:
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back and turn toward the right side whenever possible.
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back quickly.
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only use mirror on the driver's side.
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use the mirrors on both sides.
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19.
After starting the engine, oil pressure should rise to a normal level:
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within 3 miles.
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within 2 minutes.
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within seconds.
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within 6 minutes.
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20.
Which of the following statements about stopping distance is true?
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Braking distance is the distance your vehicle will travel, in ideal conditions, while you are braking.
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Perception distance is the distance your vehicle travels, in ideal conditions, from the time your eyes see a hazard until your brain recognizes it.
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Reaction distance is the distance you will continue to travel, in ideal conditions, before you hit the brakes.
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All of the above.
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