COMBINATION PRACTICE TEST - MN CDL
11.
When parking, you should choose a spot:
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that requires backing up.
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that allows you to pull forward when you leave.
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that allows you do a walk around inspection.
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All of the above.
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12.
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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13.
The crack-the-whip effect:
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can cause problems for drivers coming toward you.
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can turn the trailer over.
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can cause a vehicle to tilt.
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the ends of some vehicles to drag.
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14.
If you are driving a 30 foot vehicle at 35 mph, you should leave at least _______ between your vehicle and the vehicle in front of you.
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2 seconds
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1 seconds
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3 seconds
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4 seconds
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15.
You should always try to back toward the driver's side because:
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you can more easily correct any steering errors.
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you can watch the rear of your vehicle out the side window.
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backing toward the left side is more dangerous.
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None of the above.
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16.
Before leaving your vehicle unattended, you should:
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Apply the parking brake.
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Remove the keys.
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Chock the wheels.
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All of the above.
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17.
Overloading a vehicle with cargo can have negative effects on all of the following except:
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Braking
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Steering
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Weight limits
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Speed control
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18.
To prevent rollover, you should:
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turn the engine off while turning.
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drive in the left lane.
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drive on the shoulder of the road when possible.
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drive slowly around corners.
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19.
If you must drive slowly, how should you alert following drivers?
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Flash your brake lights
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Turn on your taillights
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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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20.
Which of the following is NOT part of checking the sliding fifth-wheel?
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Checking that the slide is not damaged or parts are missing
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Checking that it is properly greased
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Checking that all locking pins are present and locked in place
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Testing the tractor protection valve
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