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Michigan CDL Combination Practice Questions - Michigan CDL Combination Vehicles Test Exam
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Question
1
of 25
QUESTION 1 / 25
For a Michigan Group A CDL applicant, which knowledge test is listed in addition to General Knowledge?
Choose one answer below.
A
Combination Vehicle
✓
B
Passenger Transport
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C
Tank Vehicle
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D
School Bus
✓
QUESTION 2 / 25
How many questions does Michigan SOS list for the Group A Combination Vehicle knowledge test?
Choose one answer below.
A
70 questions
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B
20 questions
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C
10 questions
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D
50 questions
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QUESTION 3 / 25
What minimum score must you earn on a Michigan CDL knowledge test?
Choose one answer below.
A
70 percent
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B
90 percent
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C
80 percent
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D
60 percent
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QUESTION 4 / 25
If you fail a Michigan CDL knowledge test, when may you retake that category?
Choose one answer below.
A
Immediately the same day
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B
After 14 days
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C
Only after a skills test
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D
After a one-day wait
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QUESTION 5 / 25
Before a Michigan CDL skills test, how long must the CLP generally be held?
Choose one answer below.
A
At least 14 days
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B
No waiting period
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C
At least 24 hours
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D
At least 7 days
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QUESTION 6 / 25
Under FMCSA Group A rules, the towed unit must exceed what GVWR when GCWR is 26,001 pounds or more?
Choose one answer below.
A
26,001 pounds
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B
10,000 pounds
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C
5,000 pounds
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D
16,000 pounds
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QUESTION 7 / 25
Where does Michigan SOS say CDL knowledge tests are administered?
Choose one answer below.
A
Only through remote home testing
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B
Only during a loaded road test
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C
At computer testing stations for written knowledge tests
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D
Only at third-party skills yards
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QUESTION 8 / 25
Which official study source should Michigan combination applicants start with?
Choose one answer below.
A
A competitor answer key
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B
Only a passenger-car handbook
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C
Only a hazmat endorsement chart
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D
The Michigan Commercial Driver License Manual
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QUESTION 9 / 25
Which failed test result prevents issuance of a Group A CLP or CDL under federal rules?
Choose one answer below.
A
Failing the combination-vehicle portion
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B
Failing a motorcycle test
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C
Missing a school-bus endorsement not sought
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D
Having an expiring operator license
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QUESTION 10 / 25
What Michigan fee is listed for each standard CDL group designation or endorsement?
Choose one answer below.
A
$$125
✓
B
$$5
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C
$$1
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D
$$25
✓
QUESTION 11 / 25
What is off-tracking in a combination vehicle?
Choose one answer below.
A
The fifth wheel sliding by design
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B
The electrical connector failing
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C
Trailer wheels follow a shorter path than the tractor in a turn
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D
The ABS lamp test at startup
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QUESTION 12 / 25
Why must a tractor-trailer turn wider than a straight vehicle?
Choose one answer below.
A
The kingpin steers the front axle
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B
Trailer brakes turn automatically
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C
The fifth wheel blocks mirror use
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D
The trailer rear wheels cut inside the tractor path
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QUESTION 13 / 25
What is the safest general speed strategy before a curve or ramp?
Choose one answer below.
A
Slow to a safe speed before entering
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B
Brake hard in the middle
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C
Use only the trailer hand valve
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D
Coast in neutral
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QUESTION 14 / 25
Why are combination vehicles prone to rollover?
Choose one answer below.
A
Landing gear lowers during turns
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B
High centers of gravity and trailer dynamics amplify steering changes
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C
The fifth wheel locks steering
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D
Service lines add extra tire grip
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QUESTION 15 / 25
What is rearward amplification?
Choose one answer below.
A
A stronger fifth-wheel lock
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B
Higher tractor air pressure
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C
Steering movement grows larger toward the rear of the combination
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D
A louder backup alarm
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QUESTION 16 / 25
Why does a combination vehicle need more following distance?
Choose one answer below.
A
It uses electric brakes only
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B
It stops shorter than a car
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C
It does not need turn space
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D
It is longer and heavier and needs more distance to stop
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QUESTION 17 / 25
What following-distance rule is commonly taught for a 60-foot combination over 40 mph?
Choose one answer below.
A
About seven seconds
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B
Two seconds total
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C
One second total
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D
Ten seconds only when empty
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QUESTION 18 / 25
What should you do in strong crosswinds with an empty or lightly loaded trailer?
Choose one answer below.
A
Drive on the shoulder
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B
Reduce speed and maintain firm control
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C
Accelerate through the wind
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D
Use the hand valve continuously
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QUESTION 19 / 25
Why are humped railroad crossings a special risk for some combinations?
Choose one answer below.
A
The service line must disconnect
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B
Trailer brakes cannot work near rails
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C
The trailer underside or landing gear can hang up
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D
The fifth wheel must unlock
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QUESTION 20 / 25
What is the safest response when traffic squeezes beside your wide right turn?
Choose one answer below.
A
Turn harder to beat it
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B
Ignore it because the trailer is visible
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C
Use the hand valve to pivot
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D
Stop or wait until the side is clear before turning
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QUESTION 21 / 25
What is a jackknife?
Choose one answer below.
A
The tractor and trailer fold toward each other at the coupling
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B
Landing gear folds for travel
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C
Fifth wheel jaws close normally
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D
The electrical line coils behind the cab
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QUESTION 22 / 25
What usually causes a trailer skid?
Choose one answer below.
A
A raised landing gear crank
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B
Locked trailer wheels
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C
A greased fifth wheel
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D
Too much following distance
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QUESTION 23 / 25
If the trailer begins to skid while braking, what should you do first?
Choose one answer below.
A
Steer sharply away
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B
Pull the trailer air supply knob
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C
Release the brakes so trailer wheels can roll
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D
Apply the hand valve harder
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QUESTION 24 / 25
Why is hand-valve use on slick roads dangerous?
Choose one answer below.
A
It disconnects the kingpin
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B
It disables tractor protection
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C
It raises landing gear
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D
It can lock trailer wheels and start a skid
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QUESTION 25 / 25
Why can an empty trailer lock brakes more easily than a loaded trailer?
Choose one answer below.
A
There is less weight on the tires for traction
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B
Empty trailers have no chambers
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C
The service line is disabled
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D
The fifth wheel sits lower
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