COMBINATION TEST HAWAII - PRACTICE TEST
11.
If you smell exhaust fumes in the cab, you should:
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open the windows.
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remember to conduct a post-trip inspection.
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stop immediately.
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12.
When more cargo is piled up in a truck, the truck becomes easier to turn over. Fully loaded rigs are _________ to roll over in a crash than empty rigs.
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ten times more likely
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five times more likely
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three times more likely
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13.
Anti-lock brakes:
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keep your brakes from locking up when you brake hard.
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help you stop faster.
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increase your stopping distance.
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14.
Before starting down a hill, you should:
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release the accelerator and shift to Neutral at the same time.
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look for an escape route.
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slow down and shift to a lower gear.
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15.
The proper following distance for a 60-foot vehicle traveling at 50 mph is:
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6 seconds
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7 seconds
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4 seconds
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16.
Off-tracking is:
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when the tires lose their contact with the road and have little or no traction.
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when a vehicle makes a turn and the rear wheels of the trailer end up driving in a different path than the tractor and the front wheels of the trailer.
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when a vehicle towing a trailer skids, and the trailer pushes the towing vehicle from behind until it spins the vehicle around.
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17.
Your vehicle has hydraulic brakes. When you press the brake pedal while driving and the pedal goes to the floor, remember that:
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shifting into neutral may help slow the vehicle.
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the parking brake should never used to slow the vehicle.
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pumping the brake pedal may generate enough hydraulic pressure to stop the vehicle.
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18.
When you use your mirrors while driving on the road, you should:
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check them quickly.
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only use the driver's side mirror.
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avoid checking them regularly.
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19.
In combination vehicles with air brakes, the trailer air supply control should pop out when the air pressure falls within the range of:
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100 to 120 psi
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20 to 45 psi
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10 to 20 psi
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20.
Tests have shown that trucks with a high center of gravity are more likely to tip over, therefore you should:
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put the lightest parts of the cargo under the heaviest parts.
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distribute the cargo as low as possible.
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All of the above.
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