COMBINATION TEST GEORGIA - PRACTICE TEST
11.
Rollovers happen when drivers:
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turn too fast.
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turn too slowly.
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stop too often.
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brake too hard.
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12.
When backing a trailer, if you turn the wheel left:
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the cab will go right and the trailer will go left.
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the cab and the trailer will go left.
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the cab will go left and the trailer will go right.
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the cab and the trailer will go right.
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13.
What happens when the center of gravity of a truck moves higher up from the road?
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The vehicle is more stable while turning.
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It becomes much easier to downshift at the right rpm.
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It is easier it is to turn around corners.
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The truck becomes easier to turn over.
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14.
If your vehicle is equipped with air brakes, loss of air pressure in the emergency line will cause:
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the vehicle to slide back and forth.
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the trailer supply valve to open.
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the springs to put on the brakes.
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the trailer emergency brakes to come on.
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15.
When driving a 50 foot combination vehicle at 50 mph in ideal conditions, you should keep at least ____ seconds of space in front of you.
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5
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6
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10
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4
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16.
If during vehicle inspection a tire is too hot to touch, you should:
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let air out.
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make sure there is enough engine oil on the tires.
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immediately decrease air pressure.
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remain stopped until the tire cools off.
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17.
When coupling a tractor to a semi-trailer, after checking if the fifth-wheel is in proper position for coupling you should:
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connect the air lines to the trailer.
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connect the electrical cord and check the air lines.
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make sure the area around the vehicle is clear and the trailer wheels are chocked.
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secure the vehicle.
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18.
While driving, you should use your mirrors to:
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know where other vehicles are around you.
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check where the rear of your vehicle is while you make turns.
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check the condition of the tires and cargo.
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All of the above.
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19.
If loose or missing, _______ may cause movement between the frame and fifth wheel assembly.
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locking pins
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safety chains
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electric connectors
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mounting bolts
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20.
A bridge formula permits less maximum axle weight for axles that:
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are closer together
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have poor weight balance
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are further apart than normal
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have a high center of gravity
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