DOUBLES TRIPLES TEST FL - CDL PRACTICE TEST
11.
During a walk around inspection of a double or triple trailer, make sure that the converter dolly air tank drain valve is _____ and the glad hands are ______.
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open; not connected
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closed; not connected
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open; properly connected
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closed; properly connected
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12.
Before each trip, you must make sure:
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your cargo obscures your view to the sides.
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the truck is overloaded.
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the cargo is balanced and secured.
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the cargo has a high center of gravity.
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13.
Which of the following will off-track the most?
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The front wheels of the last trailer.
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The rear wheels of the tractor.
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The front wheels of the tractor.
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The rear wheels of the last trailer.
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14.
You should do an after-trip inspection:
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at least once a week.
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after each trip.
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once a month.
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after each stop.
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15.
Blocking and bracing are:
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coupling devices used to connect the service air lines from the truck or tractor to the trailer.
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driving techniques used to regain control when your drive wheels start to skid.
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used to keep cargo from sliding and to prevent movement of cargo.
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None of the above.
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16.
If you must drive slowly, how should you alert following drivers?
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Help them out by signaling when it is safe to pass
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Use your emergency flashers if it is legal
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Turn on your taillights
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Flash your brake lights
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17.
If brakes fail on a long downgrade, you should:
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use an escape ramp if it is available.
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pump the brake pedal 3 times.
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set the parking brake.
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turn off the engine as soon as you.
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18.
When coupling, you should:
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make sure the trailer wheels are not chocked.
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make sure the sliding fifth-wheel is locked.
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be aware that wrong coupling and uncoupling can be very dangerous.
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make sure the trailer kingpin is bent.
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19.
Too much weight on the steering axle can cause:
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poor traction.
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better handling.
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hard steering and damage to the steering axle and tires.
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None of the above.
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20.
A red triangle with an orange center means:
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Liquid tanker
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Slow-moving vehicle
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The vehicle is hauling hazardous materials
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Law enforcement vehicle
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