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CDL Combination Vehicles Exam Question With Verified Answers
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CDL Combination Vehicles Exam Question With Verified Answers HOW CAN YOU TEST THE TRAILER EMERGENCY BRAKES? - answerPlace the tractor emergency valve in the emergency position, try to nudge the vehicle forward. COMBINATION VEHICLES ARE USUALLY HEAVIER, LONGER, AND REQUIRE MORE DRIVING SKILL TH...

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  • September 29, 2024
  • 4
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • cdl combination vehicles exam question with verifi

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CDL Combination Vehicles Exam Question
With Verified Answers

HOW CAN YOU TEST THE TRAILER EMERGENCY BRAKES? - answer✔Place the tractor
emergency valve in the emergency position, try to nudge the vehicle forward.
COMBINATION VEHICLES ARE USUALLY HEAVIER, LONGER, AND REQUIRE MORE
DRIVING SKILL THAN SINGLE COMMERCIAL VEHICLES. - answer✔True
WHAT TYPE OF TRAILERS CAN GET STUCK ON RAILROAD-HIGHWAY CROSSINGS?
- answer✔Low slung units and single-axle tractor pulling a long trailer with its landing gear set
to accommodate a tandem-axle tractor.
THE AIR LEAKAGE RATE FOR A COMBINATION VEHICLE (ENGINE OFF, BRAKES
OFF) SHOULD BE NO MORE THAN ____ PSI PER MINUTE. - answer✔3
AIR LINES ON A COMBINATION VEHICLE ARE OFTEN COLORED TO KEEP THEM
FROM GETTING MIXED UP. THE EMERGENCY LINE IS ____; THE SERVICE LINE IS
____. - answer✔Red, Blue
THERE ARE TWO THINGS THAT A DRIVER CAN DO TO PREVENT A ROLLOVER.
THEY ARE "GO SLOW AROUND CORNERS" AND _____. - answer✔Keep the weight of
your cargo as close to the ground as possible.
YOU ARE DRIVING A SEMI AND THE TRAILER BREAKS AWAY, PULLING APART
THE AIR LINES. YOU EXPECT THE TRAILER BRAKES TO COME ON AND ____ . -
answer✔The tractor brakes to keep working.
WHY SHOULD YOU NOT USE THE TRAILER HAND VALVE WHILE DRIVING? -
answer✔Because of the danger of making the trailer skid.
WHAT MIGHT HAPPEN IF THE TRAILER IS TOO HIGH WHEN YOU TRY TO COUPLE?
- answer✔The trailer may not couple correctly.
WHAT PART OF THE KINGPIN SHOULD THE LOCKING JAWS CLOSE AROUND? -
answer✔The shank.
A FULL TRAILER IS 10 TIMES MORE LIKELY TO ROLLOVER THAN AN EMPTY ONE.
- answer✔True

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