CDL TANKER TEST IOWA - PRACTICE TEST
11.
Which of the following is not a way to know when to change gears?
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Use road speed (mph)
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Use engine speed (rpm)
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Check that the pressure gauge shows normal oil pressure
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12.
If driving a heavy vehicle, you should:
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stay in the right lane.
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stay in the left lane.
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try to pass other vehicles going uphill.
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13.
Which of the following is not a type of retarder?
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Pressure
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Exhaust
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Hydraulic
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14.
The service line is also called:
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brake line.
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cable line.
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control line.
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15.
Excessive use of the service brakes results in overheating. Too much heat can:
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cause the brakes apply unevenly.
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cause the brakes to grab.
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make the brakes stop working.
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16.
The heavier the vehicle:
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the higher the center of gravity will be.
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the more work the brakes must do to stop it.
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the less work the brakes must do to stop it.
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17.
Too little weight on the driving axles can cause:
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longer stopping distances.
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mechanical damage.
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poor traction.
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18.
If your truck has automatic transmission, you should downshift:
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when going down grades.
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after entering a curve.
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whenever road conditions allow.
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19.
If the ABS is not working:
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you should immediately reduce your speed.
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the truck will have no brakes.
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the truck will still have normal brakes.
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20.
The hazardous materials regulations require vehicles transporting certain types or quantities of HazMat to display warning signs called:
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reflective triangles.
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HazMat warnings.
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placards.
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