MONTANA CDL DOUBLES TRIPLES PRACTICE TEST
11.
How does ABS help you?
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ABS makes stab braking more effective.
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ABS helps you avoid wheel lock up and maintain control when you brake hard on slippery surfaces.
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ABS replaces your normal brakes and helps you to stop faster.
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ABS always shortens your stopping distance.
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12.
You are more at risk of being fatigued:
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when driving alone.
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when driving during the day.
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after getting more than 8 hours of sleep.
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when stopping periodically during long trips.
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13.
When the wheels of a trailer lock up, which of the following is most likely to occur?
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The rig will stay in a straight line but slide sideways.
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The trailer will tend to push the towing vehicle sideways (tractor jackknife).
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The trailer will the trailer
has overturn.
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The trailer will tend to swing around (trailer jackknife).
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14.
When driving a 50-foot truck at 40 mph, your minimum following distance should be:
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5 seconds
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8 seconds
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6 seconds
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4 seconds
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15.
Before driving a vehicle with a dual brake brake system, the driver should:
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wait at least 10 minutes before driving.
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wait at least 5 minutes before driving.
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pump the brake pedal 10 times to build pressure.
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allow time for the air compressor to build up a minimum of 100 psi pressure in both the primary and secondary systems.
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16.
You are driving a modern truck with a manual transmission. When going down a hill you should usually:
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use a lower gear than would be required to go up the hill.
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use the same gear you would use to go up the hill.
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shift into neutral and coast.
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downshift after your
speed has already built up.
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17.
To start moving without rolling back, you should:
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partly engage the clutch before you take your right foot off the brake.
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put on the parking brake whenever necessary.
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apply the trailer brake hand valve.
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All of the above.
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18.
When driving in very hot weather, you may have to:
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increase your speed until the tires cool off.
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decrease your following distance.
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reduce your speed to prevent overheating.
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watch out for black ice.
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19.
Fully loaded rigs:
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are much more likely to roll over than empty rigs.
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are less likely to roll over than empty rigs.
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are just as likely to roll over as empty rigs.
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None of the above.
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20.
A low air pressure warning signal:
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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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is optional on vehicles with air brakes.
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None of the above.
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