US South Dakota DMV CDL Combination Vehicles Test 8

DMV & CDL » Category

Author: TestGru Team (Education Specialist)

20 questions · All questions on one page

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

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

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 a combination vehicle?

A) tractor plus trailer(s)

B) single truck

C) bus

D) van

Question 2

What is a converter dolly?

A) device coupling doubles

B) a tool box

C) a light

D) a spare tire

Question 3

How couple doubles?

A) rear trailer, dolly, front trailer in order

B) front first always

C) no order

D) any order

Question 4

What is the crack-the-whip effect?

A) brake lock

B) rear trailer swings in turns

C) engine surge

D) tire pop

Question 5

How prevent rollover in combos?

A) brake in curve

B) slow well below curve speed

C) no need

D) speed through

Question 6

What is off-tracking in combos?

A) tire brand

B) speeding

C) rear follows shorter path

D) brake wear

Question 7

How check coupling?

A) fifth-wheel jaws locked, no gap

B) radio test

C) paint check

D) tire shine

Question 8

What is trailer hand valve for?

A) fueling

B) testing trailer brakes only

C) lights

D) parking

Question 9

How test trailer emergency brakes?

A) drive fast

B) visual only

C) no test

D) charge, pull supply, tug test

Question 10

What is a shut-off valve for?

A) fuel flow

B) controls air to rear in doubles

C) horn

D) lights

Question 11

How many valves on last trailer?

A) one open

B) half open

C) all open

D) none open (all closed)

Question 12

What is the air line order?

A) drive then connect

B) connect service+emergency before moving

C) one line enough

D) no lines

Question 13

How inspect pintle hook?

A) no chains

B) latched, safety chains crossed

C) rust fine

D) loose ok

Question 14

What are safety chains for?

A) noise

B) looks

C) backup coupling if hook fails

D) weight

Question 15

How brake with empty trailers?

A) harder

B) no brakes

C) same

D) gentler (light trailers lock easily)

Question 16

What is trailers jackknifing?

A) parking trick

B) tractor-trailer folds in skid

C) coupling step

D) turning wide

Question 17

How avoid jackknife?

A) steady braking, no sudden moves

B) speed up

C) jerk wheel

D) slam brakes

Question 18

How handle doubles in wind?

A) speed up

B) stop in lane

C) slow, extra space, firm grip

D) ignore

Question 19

What is rearward amplification?

A) last trailer moves most

B) fuel use

C) engine power

D) brake force

Question 20

How lane change with doubles?

A) tailgate first

B) slower, more space, signal long

C) quick swerve

D) no signal

US South Dakota DMV CDL Combination Vehicles Test 8

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