US Oregon DMV CDL Combination Vehicles Test 7

DMV & CDL » Category

Author: TestGru Team (Education Specialist)

20 questions · All questions on one page

Prepared with up-to-date content

DMV Oregon — Cdl Combination DMV — Oregon (USA, State Traffic Law) USA — Oregon State DMV & FMCSA (MUTCD) — USA

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

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

What is trailers jackknifing?

A) coupling step

B) tractor-trailer folds in skid

C) turning wide

D) parking trick

Question 2

How avoid jackknife?

A) speed up

B) jerk wheel

C) slam brakes

D) steady braking, no sudden moves

Question 3

How handle doubles in wind?

A) speed up

B) ignore

C) slow, extra space, firm grip

D) stop in lane

Question 4

What is rearward amplification?

A) engine power

B) last trailer moves most

C) fuel use

D) brake force

Question 5

How lane change with doubles?

A) no signal

B) tailgate first

C) slower, more space, signal long

D) quick swerve

Question 6

What is a lowboy trailer?

A) van

B) tanker

C) food trailer

D) low deck for heavy equipment

Question 7

How secure converter dolly?

A) no lights

B) safety chains, lights connected

C) loose tow

D) fast tow

Question 8

What is kingpin inspection?

A) brand

B) grease amount

C) not bent, cracks, locked

D) paint color

Question 9

What gap between fifth wheel?

A) not checked

B) 1 inch ok

C) any gap

D) no gap (tight coupling)

Question 10

How uncouple safely?

A) any slope

B) fast pull

C) level ground, brakes set, lower gear first

D) no brakes

Question 11

What is trailer ABS light for?

A) turn signal

B) shows trailer ABS fault

C) brake lights

D) decoration

Question 12

How test ABS?

A) no test

B) ask others

C) drive test

D) watch dash + trailer lamp at startup

Question 13

What is landing gear position?

A) dragging fine

B) down always

C) half down ok

D) fully raised for travel

Question 14

How cross railroad with doubles?

A) stop on tracks

B) shift on tracks

C) race gates

D) know clearance, never stop on tracks

Question 15

What following distance for combos?

A) 6+ seconds at speed

B) no rule

C) tailgate

D) 2 seconds

Question 16

What are trailer brakes types?

A) hand only

B) one type

C) service, emergency, parking

D) no trailer brakes

Question 17

How check air lines on doubles?

A) visual only

B) no check

C) connected, sealed, no leaks or tangles

D) tug hard

Question 18

What is a tractor protection valve?

A) keeps tractor air if trailer breaks away

B) fuel valve

C) light switch

D) horn

Question 19

How test tractor protection?

A) pull trailer supply, check tractor brakes hold

B) ask others

C) no test

D) drive test

Question 20

What is bobtailing?

A) backing

B) with doubles

C) driving tractor without trailer

D) parking

US Oregon DMV CDL Combination Vehicles Test 7

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