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NJ CDL Doubles Triples Practice Questions - New Jersey CDL Doubles and Triples Endorsement Test Exam
Practice mode
Question
1
of 25
QUESTION 1 / 25
Which statement is correct about T endorsement for New Jersey CDL doubles/triples operation?
Choose one answer below.
A
T is the NJ endorsement for operating CMVs pulling double or triple trailers where legal
✓
B
It is a passenger bus loading rule
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C
It applies only to tank vehicles
✓
D
It waives the CDL knowledge test
✓
QUESTION 2 / 25
Which statement is correct about license class for New Jersey CDL doubles/triples operation?
Choose one answer below.
A
It is a passenger bus loading rule
✓
B
NJ MVC lists Class A as required for double/triple trailer operation
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C
It applies only to tank vehicles
✓
D
It waives the CDL knowledge test
✓
QUESTION 3 / 25
Which statement is correct about test length for New Jersey CDL doubles/triples operation?
Choose one answer below.
A
It is a passenger bus loading rule
✓
B
It applies only to tank vehicles
✓
C
The NJ CDL Manual lists the double/triple trailer test as 20 questions
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D
It waives the CDL knowledge test
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QUESTION 4 / 25
Which statement is correct about passing score for New Jersey CDL doubles/triples operation?
Choose one answer below.
A
It is a passenger bus loading rule
✓
B
It applies only to tank vehicles
✓
C
It waives the CDL knowledge test
✓
D
NJ MVC CDL knowledge tests require at least 80 percent correct
✓
QUESTION 5 / 25
Which statement is correct about FMCSA testing for New Jersey CDL doubles/triples operation?
Choose one answer below.
A
FMCSA lists Double/Triple Trailers as a knowledge-test-only endorsement
✓
B
It is a passenger bus loading rule
✓
C
It applies only to tank vehicles
✓
D
It waives the CDL knowledge test
✓
QUESTION 6 / 25
Which statement is correct about converter gear for New Jersey CDL doubles/triples operation?
Choose one answer below.
A
Leave the dolly component loose until highway speed
✓
B
Converter gear on a dolly is a coupling device with one or two axles and a fifth wheel
✓
C
Use the dolly only as cargo securement
✓
D
Ignore the dolly if lights work
✓
QUESTION 7 / 25
Which statement is correct about dolly positioning for New Jersey CDL doubles/triples operation?
Choose one answer below.
A
Leave the dolly component loose until highway speed
✓
B
Use the dolly only as cargo securement
✓
C
The dolly should be in front of the second trailer and in line with the kingpin
✓
D
Ignore the dolly if lights work
✓
QUESTION 8 / 25
Which statement is correct about pintle hook for New Jersey CDL doubles/triples operation?
Choose one answer below.
A
Leave the dolly component loose until highway speed
✓
B
Use the dolly only as cargo securement
✓
C
Ignore the dolly if lights work
✓
D
The pintle hook must be locked after the dolly is hooked to the front trailer
✓
QUESTION 9 / 25
Which statement is correct about converter dolly ABS for New Jersey CDL doubles/triples operation?
Choose one answer below.
A
Converter dollies built on or after March 1, 1998, are required to have ABS
✓
B
Leave the dolly component loose until highway speed
✓
C
Use the dolly only as cargo securement
✓
D
Ignore the dolly if lights work
✓
QUESTION 10 / 25
Which statement is correct about pintle hook hazard for New Jersey CDL doubles/triples operation?
Choose one answer below.
A
Leave the dolly component loose until highway speed
✓
B
Never unlock the pintle hook with the dolly still under the rear trailer because the tow bar may fly up
✓
C
Use the dolly only as cargo securement
✓
D
Ignore the dolly if lights work
✓
QUESTION 11 / 25
Which statement is correct about load order for New Jersey CDL doubles/triples operation?
Choose one answer below.
A
Skip the visual check and drive away
✓
B
Release all brakes before aligning equipment
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C
The more heavily loaded semitrailer should be first behind the tractor
✓
D
Use sharp steering to force coupling
✓
QUESTION 12 / 25
Which statement is correct about trailer height for New Jersey CDL doubles/triples operation?
Choose one answer below.
A
Skip the visual check and drive away
✓
B
Release all brakes before aligning equipment
✓
C
Use sharp steering to force coupling
✓
D
The rear trailer should be slightly lower than the dolly fifth wheel before coupling
✓
QUESTION 13 / 25
Which statement is correct about coupling test for New Jersey CDL doubles/triples operation?
Choose one answer below.
A
Test dolly-to-trailer coupling by pulling against the pin of the second semitrailer
✓
B
Skip the visual check and drive away
✓
C
Release all brakes before aligning equipment
✓
D
Use sharp steering to force coupling
✓
QUESTION 14 / 25
Which statement is correct about visual coupling check for New Jersey CDL doubles/triples operation?
Choose one answer below.
A
Skip the visual check and drive away
✓
B
There should be no space between fifth wheel plates and jaws must close on the kingpin
✓
C
Release all brakes before aligning equipment
✓
D
Use sharp steering to force coupling
✓
QUESTION 15 / 25
Which statement is correct about post-coupling connections for New Jersey CDL doubles/triples operation?
Choose one answer below.
A
Skip the visual check and drive away
✓
B
Release all brakes before aligning equipment
✓
C
Connect safety chains, air hoses, and light cords after coupling the rear trailer
✓
D
Use sharp steering to force coupling
✓
QUESTION 16 / 25
Which statement is correct about uncoupling location for New Jersey CDL doubles/triples operation?
Choose one answer below.
A
Uncouple on a grade whenever possible
✓
B
Leave disconnected lines dragging
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C
Release the pintle hook before support is set
✓
D
Park in a straight line on firm, level ground before uncoupling
✓
QUESTION 17 / 25
Which statement is correct about uncoupling shut-off valves for New Jersey CDL doubles/triples operation?
Choose one answer below.
A
Close air shut-offs at the rear of the first semitrailer and on the dolly if equipped
✓
B
Uncouple on a grade whenever possible
✓
C
Leave disconnected lines dragging
✓
D
Release the pintle hook before support is set
✓
QUESTION 18 / 25
Which statement is correct about dolly fifth wheel release for New Jersey CDL doubles/triples operation?
Choose one answer below.
A
Uncouple on a grade whenever possible
✓
B
Release the converter dolly fifth wheel latch before pulling the dolly out
✓
C
Leave disconnected lines dragging
✓
D
Release the pintle hook before support is set
✓
QUESTION 19 / 25
Which statement is correct about triple uncoupling for New Jersey CDL doubles/triples operation?
Choose one answer below.
A
Uncouple on a grade whenever possible
✓
B
Leave disconnected lines dragging
✓
C
Uncouple the third trailer first using the doubles method
✓
D
Release the pintle hook before support is set
✓
QUESTION 20 / 25
Which statement is correct about fifth wheel jaws for New Jersey CDL doubles/triples operation?
Choose one answer below.
A
Check only the tractor cab
✓
B
Assume the rear trailer follows safely without inspection
✓
C
Ignore the item until after the trip
✓
D
Locking jaws must be around the shank, not the head, of the kingpin
✓
QUESTION 21 / 25
Which statement is correct about release arm for New Jersey CDL doubles/triples operation?
Choose one answer below.
A
The release arm must be properly seated with the safety latch or lock engaged
✓
B
Check only the tractor cab
✓
C
Assume the rear trailer follows safely without inspection
✓
D
Ignore the item until after the trip
✓
QUESTION 22 / 25
Which statement is correct about shut-off valve positions for New Jersey CDL doubles/triples operation?
Choose one answer below.
A
Check only the tractor cab
✓
B
Rear shut-offs on front trailers should be open and rear shut-offs on the last trailer closed
✓
C
Assume the rear trailer follows safely without inspection
✓
D
Ignore the item until after the trip
✓
QUESTION 23 / 25
Which statement is correct about landing gear for New Jersey CDL doubles/triples operation?
Choose one answer below.
A
Check only the tractor cab
✓
B
Assume the rear trailer follows safely without inspection
✓
C
Landing gear should be fully raised, complete, undamaged, and the crank handle secured
✓
D
Ignore the item until after the trip
✓
QUESTION 24 / 25
Which statement is correct about air flow to all trailers for New Jersey CDL doubles/triples operation?
Choose one answer below.
A
Check only the tractor dashboard gauge
✓
B
Operate with air only to the first trailer
✓
C
Use light cords instead of air lines
✓
D
Air must reach all the way to the back for all brakes to work
✓
QUESTION 25 / 25
Which statement is correct about tractor protection valve for New Jersey CDL doubles/triples operation?
Choose one answer below.
A
The trailer air supply control should pop out in the manufacturer range, usually 20 to 45 psi
✓
B
Check only the tractor dashboard gauge
✓
C
Operate with air only to the first trailer
✓
D
Use light cords instead of air lines
✓
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