COMBINATION PRACTICE TEST - NM CDL
11.
Axle weight is:
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the weight transmitted to the ground by one axle or one set of axles.
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the maximum safe weight your tires can carry at a specified pressure.
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the weight of all the axles added together.
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12.
During a walk around inspection of a combination vehicle, drivers should check that:
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all locking pins are present and locked in place.
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the glide plate is securely mounted to the trailer frame.
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All of the above.
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13.
When driving in a construction zone, if a construction worker is near the road, you should:
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further reduce your speed.
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maintain a constant speed.
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come to a complete stop.
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14.
As part of the final air brake check, you should:
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Test air leakage rate.
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Check air compressor governor cut-in and cut-out pressure.
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All of the above.
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15.
When connecting the glad hands, you should press the two seals together with the couplers at a ______ angle to each other.
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45 degree
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30 degree
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90 degree
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16.
The service line is also called:
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pressure line or signal line.
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control line or signal line.
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signal line or air line.
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17.
If a load is placed on one side of the trailer:
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making turns may be easier.
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the steering axle weight will be too light to steer safely.
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a rollover is more likely.
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18.
In your mirror, you see a car approaching from the rear. The next time you check your mirror, you don't see the car. If you wish to change lanes, you should:
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ease into the other lane slowly so the other car can get out of the way.
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wait until you are sure the car isn't in your blind spot.
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assume the car left the roadway and change lanes as normal.
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19.
You should test the coupling by:
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pulling against the pin of the second semitrailer.
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applying the parking brakes so the rig will not move.
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locking the pintle hook.
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20.
When driving on slippery surfaces, you should:
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change lanes often.
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not pass slower vehicles unless necessary.
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make turns as quickly as possible.
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