CDL Combination Vehicles Exam Question With Verified Answers
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Course
CDL
Institution
CDL
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...
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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