Page 1 of 71
IOWA CDL EXAM WITH 4 CHAPTERS LATEST UPDATE
THIS YEAR ALL 300 QUESTIONS AND CORRECT DETAILED
ANSWERS JUST RELEASED
CONTENTS -all chapters
1. IOWA CDL Exam
2. CDL – Iowa exam book
3. CDL Iowa - General Knowledge
4. Iowa CDL Airbrakes
IOWA CDL Exam
QUESTION: How can you lose your CDL for 60 days? - ANSWER-If you have committed two
serious traffic violations within a three-year period involving a CMV
QUESTION: How can you lose your CDL for 120 days? - ANSWER-For three or more serious
traffic violations within a three-year period involving a CMV
QUESTION: How can you lose your CDL for 90 days? - ANSWER-if you have committed your first
violation of an out-of-service order
1
,Page 2 of 71
for at least one year if you have committed two violations of an out-of-service order in a ten-
year period
for at least three years if you have committed three or more violations of an out-of-service
order in a ten-year period
QUESTION: You must notify your employer within 30 days... - ANSWER-of conviction for any
traffic violations (except parking)
QUESTION: You must notify your employer within two business days... - ANSWER-if your license
is suspended, revoked, or canceled, or if you are disqualified from driving
QUESTION: What is the most important reason for doing a vehicle inspection? - ANSWER-
SAFETY
QUESTION: What things should you check during a trip? - ANSWER-Watch gauges for signs of
trouble.
Use your senses to check for problems (look,listen,smell,and feel)
2
,Page 3 of 71
Check critical items when you stop : tires, wheels, rims, brakes, lights, reflectors, electrical
connections to trailers, trailer coupling devices, cargo securement devices.
QUESTION: Name some key steering system parts - ANSWER-steering wheel, tie rod, steering
shaft, hydraulic fluid reservoir, gear box, pitman arm, drag link, steering knuckle, spindle,
steering arm, power steering cylinder
QUESTION: Name some suspension system defects - ANSWER-missing nuts, bolts, cotter keys,
or other parts
bent loose or broken parts such as steering column,
steering gearbox, or tie rods
IF power steering equipped, hoses, pumps, and fluid level; check for leaks steering
steering wheel play of more than 10 degrees can make it hard to steer
QUESTION: What three kinds of emergency equipment must you have? - ANSWER-fire
extinguisher
3
, Page 4 of 71
spare electrical fuses
warning devices for parked vehicles
QUESTION: What is the minimum tread depth for front tires? For other tires? - ANSWER-4/32-
inch tread depth on front tires
2/32-inch on other tires
QUESTION: Name some things you should check on the front of your vehicle during the walk
around inspection? - ANSWER-low beams are on and both of the four-way flashers are working,
high beams work, turn off headlights and four-way emergency flashers, parking, clearance,
side-marker, and identification lights, right turn signal, and start walk-around inspection
QUESTION: What should wheel bearing seals be checked for? - ANSWER-Leaks, Leaks, LEAKS!!
QUESTION: How many red reflective triangles should you carry? - ANSWER-3
4
IOWA CDL EXAM WITH 4 CHAPTERS LATEST UPDATE
THIS YEAR ALL 300 QUESTIONS AND CORRECT DETAILED
ANSWERS JUST RELEASED
CONTENTS -all chapters
1. IOWA CDL Exam
2. CDL – Iowa exam book
3. CDL Iowa - General Knowledge
4. Iowa CDL Airbrakes
IOWA CDL Exam
QUESTION: How can you lose your CDL for 60 days? - ANSWER-If you have committed two
serious traffic violations within a three-year period involving a CMV
QUESTION: How can you lose your CDL for 120 days? - ANSWER-For three or more serious
traffic violations within a three-year period involving a CMV
QUESTION: How can you lose your CDL for 90 days? - ANSWER-if you have committed your first
violation of an out-of-service order
1
,Page 2 of 71
for at least one year if you have committed two violations of an out-of-service order in a ten-
year period
for at least three years if you have committed three or more violations of an out-of-service
order in a ten-year period
QUESTION: You must notify your employer within 30 days... - ANSWER-of conviction for any
traffic violations (except parking)
QUESTION: You must notify your employer within two business days... - ANSWER-if your license
is suspended, revoked, or canceled, or if you are disqualified from driving
QUESTION: What is the most important reason for doing a vehicle inspection? - ANSWER-
SAFETY
QUESTION: What things should you check during a trip? - ANSWER-Watch gauges for signs of
trouble.
Use your senses to check for problems (look,listen,smell,and feel)
2
,Page 3 of 71
Check critical items when you stop : tires, wheels, rims, brakes, lights, reflectors, electrical
connections to trailers, trailer coupling devices, cargo securement devices.
QUESTION: Name some key steering system parts - ANSWER-steering wheel, tie rod, steering
shaft, hydraulic fluid reservoir, gear box, pitman arm, drag link, steering knuckle, spindle,
steering arm, power steering cylinder
QUESTION: Name some suspension system defects - ANSWER-missing nuts, bolts, cotter keys,
or other parts
bent loose or broken parts such as steering column,
steering gearbox, or tie rods
IF power steering equipped, hoses, pumps, and fluid level; check for leaks steering
steering wheel play of more than 10 degrees can make it hard to steer
QUESTION: What three kinds of emergency equipment must you have? - ANSWER-fire
extinguisher
3
, Page 4 of 71
spare electrical fuses
warning devices for parked vehicles
QUESTION: What is the minimum tread depth for front tires? For other tires? - ANSWER-4/32-
inch tread depth on front tires
2/32-inch on other tires
QUESTION: Name some things you should check on the front of your vehicle during the walk
around inspection? - ANSWER-low beams are on and both of the four-way flashers are working,
high beams work, turn off headlights and four-way emergency flashers, parking, clearance,
side-marker, and identification lights, right turn signal, and start walk-around inspection
QUESTION: What should wheel bearing seals be checked for? - ANSWER-Leaks, Leaks, LEAKS!!
QUESTION: How many red reflective triangles should you carry? - ANSWER-3
4
