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US Florida DMV CDL Combination Vehicles Test 1

DMV & CDL » Category

Author: TestGru Team (Education Specialist)

20 questions · All questions on one page

Prepared with up-to-date content
DMV Florida — Cdl Combination DMV — Florida (USA, State Traffic Law) USA — Florida State DMV & FMCSA (MUTCD) — USA
What is this test? for Florida DMV Cdl Combination permit/CDL, USA (MUTCD) — DMV — Florida (USA, State Traffic Law) level, USA — Florida.
Is this for you? For driver candidates in Florida, USA — Cdl Combination permit/CDL (16+, State DMV)
Section: DMV Florida — Cdl Combination · Education: High School & Adult (16+) · Part: DMV Florida — Cdl Combination · Country: USA · Region: USA — Florida

The DMV written test is an important step measuring driver candidates' knowledge of traffic laws, first aid, and vehicle technology.

This test reinforces your theoretical knowledge and provides the fundamentals needed to pass the exam and become a safe driver.

By solving this test of 20 questions, you can both test your knowledge and identify the topics you need to improve.

Question 1
In Florida, what is a combination vehicle?
A) tractor plus trailer(s)
B) single truck
C) bus
D) van
Question 2
In Florida, what is a converter dolly?
A) a spare tire
B) a light
C) a tool box
D) device coupling doubles
Question 3
In Florida, how couple doubles?
A) front first always
B) rear trailer, dolly, front trailer in order
C) any order
D) no order
Question 4
In Florida, what is the crack-the-whip effect?
A) rear trailer swings in turns
B) brake lock
C) tire pop
D) engine surge
Question 5
In Florida, how prevent rollover in combos?
A) slow well below curve speed
B) speed through
C) brake in curve
D) no need
Question 6
In Florida, what is off-tracking in combos?
A) tire brand
B) rear follows shorter path
C) brake wear
D) speeding
Question 7
In Florida, how check coupling?
A) fifth-wheel jaws locked, no gap
B) paint check
C) radio test
D) tire shine
Question 8
In Florida, what is trailer hand valve for?
A) lights
B) parking
C) testing trailer brakes only
D) fueling
Question 9
In Florida, how test trailer emergency brakes?
A) charge, pull supply, tug test
B) visual only
C) no test
D) drive fast
Question 10
In Florida, what is a shut-off valve for?
A) lights
B) fuel flow
C) controls air to rear in doubles
D) horn
Question 11
In Florida, how many valves on last trailer?
A) none open (all closed)
B) one open
C) all open
D) half open
Question 12
In Florida, what is the air line order?
A) connect service+emergency before moving
B) drive then connect
C) one line enough
D) no lines
Question 13
In Florida, how inspect pintle hook?
A) no chains
B) loose ok
C) latched, safety chains crossed
D) rust fine
Question 14
In Florida, what are safety chains for?
A) backup coupling if hook fails
B) noise
C) looks
D) weight
Question 15
In Florida, how brake with empty trailers?
A) gentler (light trailers lock easily)
B) harder
C) same
D) no brakes
Question 16
In Florida, what is trailers jackknifing?
A) tractor-trailer folds in skid
B) parking trick
C) coupling step
D) turning wide
Question 17
In Florida, how avoid jackknife?
A) steady braking, no sudden moves
B) jerk wheel
C) speed up
D) slam brakes
Question 18
In Florida, how handle doubles in wind?
A) slow, extra space, firm grip
B) ignore
C) stop in lane
D) speed up
Question 19
In Florida, what is rearward amplification?
A) last trailer moves most
B) engine power
C) brake force
D) fuel use
Question 20
In Florida, how lane change with doubles?
A) slower, more space, signal long
B) quick swerve
C) no signal
D) tailgate first

About This Test

For Drivers 16+ & CDL (USA, 51 States × 9 Topics) — State DMV permit and CDL General, Air Brakes, Combination, HazMat and Tanker per MUTCD & FMCSA state law. Section: DMV & CDL, USA.

DMV & CDL USA — 51 States (incl. DC) × 9 topics = 4,400+ tests: Road Signs (MUTCD), Traffic Laws, First Aid, Vehicle Technique, Motorcycle, CDL General Knowledge, Air Brakes, Combination, HazMat. State traffic law + FMCSA. 8×20Q per state-topic.

DMV Forum: no toxic driving shaming; respect first — auto-moderation → (content hidden) for profanity/insults in topics & replies.

Study Tips:

  • Study your state manual first
  • Master signs before laws
  • Do motorcycle/CDL separately
  • Drive kind — Forum kind