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Michigan CDL Doubles Triples Practice Questions - Michigan CDL Doubles and Triples Endorsement Test Exam
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Question
1
of 25
QUESTION 1 / 25
In Michigan, which CDL endorsement covers double-trailer operation?
Choose one answer below.
A
T endorsement
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B
N endorsement
✓
C
P endorsement
✓
D
H endorsement
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QUESTION 2 / 25
What does the Michigan CDL guide say about triple trailers in Michigan?
Choose one answer below.
A
They are not permitted in Michigan
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B
They are permitted only with hazmat
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C
They are allowed at night only
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D
They require only a tank endorsement
✓
QUESTION 3 / 25
Which Michigan CDL manual sections are listed for the T endorsement?
Choose one answer below.
A
Sections 6 and 7
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B
Sections 4 and 8
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C
Sections 9 and 10
✓
D
Only Section 1
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QUESTION 4 / 25
Under federal CDL rules, what must a Double/Triple Trailers applicant pass?
Choose one answer below.
A
A specialized knowledge test
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B
A passenger loading skills test
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C
Only a road-sign test
✓
D
A motorcycle maneuver test
✓
QUESTION 5 / 25
What T endorsement topic is expressly included in 49 CFR 383.115?
Choose one answer below.
A
Assembly and hookup of units
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B
School bus evacuation drills
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C
Motorcycle balance
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D
Passenger ticketing
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QUESTION 6 / 25
Which federal rule sets the CDL knowledge-test passing standard at at least 80 percent?
Choose one answer below.
A
49 CFR 383.135
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B
49 CFR 393.11
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C
49 CFR 392.22
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D
49 CFR 383.5
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QUESTION 7 / 25
What does Michigan SOS require for each CDL endorsement being added?
Choose one answer below.
A
A written knowledge exam
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B
Only a new photo
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C
No test under any circumstance
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D
Only proof of insurance
✓
QUESTION 8 / 25
For an existing CDL holder adding T in Michigan, what does SOS say about ELDT?
Choose one answer below.
A
ELDT is not required just to add T
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B
ELDT is always required before T
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C
TSA screening replaces the T test
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D
Passenger ELDT is required
✓
QUESTION 9 / 25
Which endorsement is for tank vehicles rather than doubles/triples?
Choose one answer below.
A
N endorsement
✓
B
T endorsement
✓
C
S endorsement
✓
D
X endorsement only
✓
QUESTION 10 / 25
Why does the Michigan T endorsement still study triples concepts if triples are not permitted in Michigan?
Choose one answer below.
A
The federal endorsement is Double/Triple Trailers and Section 7 covers the knowledge area
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B
Michigan secretly permits triples everywhere
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C
Triples replace air-brake tests
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D
The topic applies only to motorcycles
✓
QUESTION 11 / 25
What is a converter dolly used for in doubles operation?
Choose one answer below.
A
Coupling a semitrailer behind another trailer
✓
B
Opening cargo doors
✓
C
Replacing the tractor engine
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D
Marking a hazmat load
✓
QUESTION 12 / 25
Which dolly coupling part connects to the trailer ahead?
Choose one answer below.
A
Pintle hook and drawbar eye connection
✓
B
Windshield wiper arm
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C
Cargo bulkhead
✓
D
Landing-gear crank only
✓
QUESTION 13 / 25
What must be true of a converter dolly pintle hook before travel?
Choose one answer below.
A
It is latched and secured
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B
It is left open for turning
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C
It is replaced by air lines
✓
D
It is removed from the dolly
✓
QUESTION 14 / 25
If safety chains are part of the dolly connection, what should inspection confirm?
Choose one answer below.
A
They are secured to the trailer
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B
They are stored in the cab
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C
They replace the pintle hook
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D
They are wrapped around glad hands
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QUESTION 15 / 25
What should be done with converter dolly support equipment before road travel?
Choose one answer below.
A
Raise and secure it
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B
Leave it dragging
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C
Remove it at every stop
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D
Tie it to the service line
✓
QUESTION 16 / 25
What should be true of the converter dolly air tank drain valve before moving?
Choose one answer below.
A
It is closed
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B
It is open to vent continuously
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C
It is removed
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D
It is used as an electrical socket
✓
QUESTION 17 / 25
Why inspect a spare tire carried on a converter dolly?
Choose one answer below.
A
It must be secured so it cannot fall or shift
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B
It controls the dolly brakes
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C
It replaces the safety chains
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D
It proves the service line works
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QUESTION 18 / 25
What should dolly air lines be checked for?
Choose one answer below.
A
Support, proper routing, and damage or leaks
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B
Paint match only
✓
C
Radio reception
✓
D
Fuel flow
✓
QUESTION 19 / 25
What is the danger of a defective converter dolly tire?
Choose one answer below.
A
It can destabilize the rear trailer and combination
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B
It makes the horn fail
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C
It lowers the CDL fee
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D
It prevents the tractor from starting
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QUESTION 20 / 25
When should a converter dolly defect be repaired?
Choose one answer below.
A
Before operating the combination
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B
Only after delivery
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C
Only if a competitor manual says so
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D
Never, if speed is low
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QUESTION 21 / 25
For safest handling in doubles, where should the heavier semitrailer be placed?
Choose one answer below.
A
First position behind the tractor
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B
Last position behind the dolly
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C
Either position with no effect
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D
On the shoulder before departure
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QUESTION 22 / 25
Before coupling the rear trailer, what should you do if you doubt its brakes will hold?
Choose one answer below.
A
Chock the wheels
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B
Release all brakes
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C
Back faster
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D
Open all rear valves
✓
QUESTION 23 / 25
If the rear trailer has no spring brakes, how can emergency brakes be set before coupling?
Choose one answer below.
A
Charge the tank through the emergency line, then disconnect it
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B
Connect only the light cord
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C
Open the service valve and drive away
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D
Lower landing gear halfway
✓
QUESTION 24 / 25
Why should trailer height be slightly lower than the fifth wheel during coupling?
Choose one answer below.
A
So the fifth wheel lifts the trailer and the kingpin seats
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B
So the kingpin rides over the jaws
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C
So no visual check is needed
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D
So landing gear carries the load during travel
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QUESTION 25 / 25
What is high coupling?
Choose one answer below.
A
A failed or unsafe coupling where the kingpin does not properly lock in the fifth wheel
✓
B
A legal high-clearance route
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C
A required heavy-load placement
✓
D
A lighting test
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