US Iowa DMV CDL General Knowledge Test 2

DMV & CDL » Category

Author: TestGru Team (Education Specialist)

20 questions · All questions on one page

Prepared with up-to-date content

DMV Iowa — Cdl General DMV — Iowa (USA, State Traffic Law) USA — Iowa State DMV & FMCSA (MUTCD) — USA

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

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 Iowa, what are glad hands for?

A) waving

B) light switches

C) fuel caps

D) air line connections tractor-trailer

Question 2

In Iowa, what color is emergency air line?

A) blue

B) green

C) yellow

D) red

Question 3

In Iowa, what color is service air line?

A) black

B) white

C) blue

D) red

Question 4

In Iowa, what is landing gear check?

A) fully raised, handle secured

B) dragging fine

C) half down ok

D) no check

Question 5

In Iowa, how test trailer emergency brakes?

A) drive fast

B) no test

C) visual only

D) pull trailer air supply, tug gently

Question 6

In Iowa, what is a DOT annual inspection?

A) optional

B) required yearly vehicle inspection

C) every 5 years

D) driver exam

Question 7

In Iowa, what goes in a driver log?

A) hours, duty changes, locations

B) songs

C) meals

D) dreams

Question 8

In Iowa, what is personal conveyance?

A) limited personal use off-duty

B) hauling freight

C) paid miles

D) team driving

Question 9

In Iowa, what is adverse driving extra?

A) skip logs

B) no extra

C) +10 hours

D) +2 hours in bad weather

Question 10

In Iowa, what is a weigh station for?

A) checking legal weight/compliance

B) fueling

C) food

D) repairs

Question 11

In Iowa, what is an overweight ticket risk?

A) Nothing happens

B) bonus

C) fines, delays, out-of-service

D) praise

Question 12

In Iowa, how secure hazmat differently?

A) hide it

B) same as all freight

C) per hazmat rules + placards

D) no rules

Question 13

In Iowa, what is cargo weight distribution for?

A) legal axles, stable handling

B) fuel only

C) speed

D) looks

Question 14

In Iowa, what are shiners in pre-trip?

A) lights/reflectors check

B) paint

C) tire brand

D) radio

Question 15

In Iowa, what is steer tire minimum tread?

A) 1/32

B) 4/32 inch

C) no minimum

D) 2/32

Question 16

In Iowa, what is drive tire minimum tread?

A) 2/32 inch

B) 6/32

C) 4/32

D) no minimum

Question 17

In Iowa, how check slack adjusters?

A) any play ok

B) no check

C) about 1 inch free play max

D) by sound

Question 18

In Iowa, what is a low air warning?

A) never

B) at 20 psi

C) at 120 psi

D) buzzer/light at ~55-75 psi

Question 19

In Iowa, what are mudflaps for?

A) looks

B) Nothing happens

C) blocking debris spray

D) speed

Question 20

In Iowa, how often check mirrors in city?

A) only turns

B) hourly

C) constantly, every few seconds

D) never

US Iowa DMV CDL General Knowledge Test 2

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