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US Rhode Island DMV CDL Combination Vehicles Test 6

DMV & CDL » Category

Author: TestGru Team (Education Specialist)

20 questions · All questions on one page

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

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
True or false in Rhode Island: one type.
A) True
B) False
Question 2
True or false in Rhode Island: visual only.
A) True
B) False
Question 3
True or false in Rhode Island: fuel valve.
A) True
B) False
Question 4
True or false in Rhode Island: with doubles.
A) True
B) False
Question 5
Which is correct about CDL combination vehicles in Rhode Island?
A) van
B) bus
C) tractor plus trailer(s)
D) single truck
Question 6
What is a combination vehicle?
A) bus
B) single truck
C) van
D) tractor plus trailer(s)
Question 7
What is a converter dolly?
A) a tool box
B) a light
C) device coupling doubles
D) a spare tire
Question 8
How couple doubles?
A) any order
B) rear trailer, dolly, front trailer in order
C) no order
D) front first always
Question 9
What is the crack-the-whip effect?
A) rear trailer swings in turns
B) brake lock
C) engine surge
D) tire pop
Question 10
How prevent rollover in combos?
A) brake in curve
B) no need
C) speed through
D) slow well below curve speed
Question 11
What is off-tracking in combos?
A) rear follows shorter path
B) speeding
C) tire brand
D) brake wear
Question 12
How check coupling?
A) tire shine
B) fifth-wheel jaws locked, no gap
C) paint check
D) radio test
Question 13
What is trailer hand valve for?
A) parking
B) testing trailer brakes only
C) lights
D) fueling
Question 14
How test trailer emergency brakes?
A) no test
B) charge, pull supply, tug test
C) drive fast
D) visual only
Question 15
What is a shut-off valve for?
A) lights
B) fuel flow
C) controls air to rear in doubles
D) horn
Question 16
How many valves on last trailer?
A) all open
B) half open
C) none open (all closed)
D) one open
Question 17
What is the air line order?
A) no lines
B) connect service+emergency before moving
C) drive then connect
D) one line enough
Question 18
How inspect pintle hook?
A) no chains
B) loose ok
C) latched, safety chains crossed
D) rust fine
Question 19
What are safety chains for?
A) noise
B) looks
C) weight
D) backup coupling if hook fails
Question 20
How brake with empty trailers?
A) no brakes
B) same
C) harder
D) gentler (light trailers lock easily)

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