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DOUBLES TRIPLES TEST NY - CDL PRACTICE TEST

11. ABS:
improves your visibility at night.
helps you avoid skids caused by over braking.
may cause your wheels to lock when you break hard.
helps you stop faster.
12. Blocking and bracing are:
driving techniques used to regain control when your drive wheels start to skid.
used to keep cargo from sliding and to prevent movement of cargo.
coupling devices used to connect the service air lines from the truck or tractor to the trailer.
None of the above.
13. The posted speed for a curve that may be safe for a straight truck:
can be ignored when driving a double or triple.
could be too fast for a double or triple.
is never safe for a double or triple.
is likely to be safe for a double or triple.
14. You should test the coupling by:
pulling against the pin of the second semitrailer.
applying the parking brakes so the rig will not move.
disconnect the safety chains.
locking the pintle hook.
15. On any upgrade, gravity:
doesn't affect your speed.
slows you down.
doubles your speed.
speed you up.
16. An ABS system:
is a safety anti-skid braking system.
requires a change in the way you brake.
helps increase a vehicle's stopping power.
decreases your stopping distance.
17. With low beams, drivers can see ahead about:
100 feet
15 feet
250 feet
150 feet
18. Texting is:
safer than  engaging in conversation with a passenger.
safer than talking on a cell phone.
about as safe as adjusting the radio.
the most dangerous distraction.
19. An alcohol evaporator:
is used to reduce the risk of ice in air brake valves and other parts during cold weather.
protects the air brake system from too much pressure.
used to reduce the chance of the front wheels skidding.
to hold compressed air.
20. Do NOT use the parking brakes:
when you park for less than two hours.
when you leave your vehicle.
to test that they work.
if the brakes are very hot.
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