CDL AIR BRAKES PRACTICE TEST - OHIO
16.
Empty trucks require _____ stopping distances because empty vehicles have ______ traction.
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less; more
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greater; more
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greater; less
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17.
The parking brake:
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should be used when you need to apply the brakes firmly.
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should be used when driving in bad weather.
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should be used whenever you park.
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18.
Emergency brakes must be held on by:
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hydraulic pressure.
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mechanical force.
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air pressure.
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19.
Which of the following is not a way to know when to change gears?
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Check that the pressure gauge shows normal oil pressure
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Use engine speed (rpm)
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Use road speed (mph)
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20.
Under a pressurized system, the radiator cap:
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should never be hot.
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should be removed when the coolant is hot.
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should never be removed until the system has cooled.
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