1.
To test the service brake:
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gently try to pull forward with the trailer parking brake on, then release the brake.
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shift your transmission to a low gear, pump the brake pedal three times, then hold it down for five seconds.
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push the brake pedal firmly while going about 5 mph.
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2.
Before driving a truck or bus with a dual air brake system, the minimum pressure in both the primary and secondary
systems should be at least:
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100 psi.
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75 psi.
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130 psi.
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3.
If you must stop on a one-way or divided highway, you should place warning devices _______ toward the approaching traffic.
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10, 100 and 200 feet
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5, 25 and 50 feet
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5, 50 and 500 feet
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4.
When is it safe to leave your vehicle unattended without applying the parking brakes or chocking the wheels?
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Never.
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Only while you are taking a rest break.
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When you are conducting your pre-trip inspection.
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5.
If your vehicle has an alcohol evaporator, every day during cold weather, you should:
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fill it up with oil to prevent alcohol from freezing.
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fill it up with oil to prevent the pipes from freezing.
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check the alcohol container and fill up as necessary.
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6.
An ABS system:
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gives you more control over the vehicle during braking.
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helps you avoid skids caused by over braking.
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All of the above.
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7.
If your brakes fail while you are driving on a downgrade, you should:
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take the least hazardous escape route you can.
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use an escape ramp if it's available.
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All of the above.
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8.
The braking power of the spring brakes:
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is not affected by the condition of the service brakes.
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depends on the brakes being in adjustment.
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is not affected by the air pressure level.
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9.
To check that spring brakes come on automatically, the first thing to do is to:
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continue to step on and off the brake pedal until the air pressure falls to the manufacturer’s specification.
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release the parking brake, move the vehicle forward slowly, and apply the brakes firmly.
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turn off the engine, release the parking brake and time the air pressure drop.
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10.
Your vehicle has air brakes. To stop, you should:
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pull the parking brake control knob out.
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push the brake pedal down.
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release the accelerator, push in the clutch, and shift to Neutral at the same time.
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