IOWA CDL Exam with Questions and
Correct Answers 2025
What ,do ,you ,need ,a ,CDL ,to ,operate? ,- ,CORRECT ,ANSWER-Any ,single ,vehicle ,with
,a ,gross ,vehicle ,weight ,rating ,of ,26,001 ,pounds ,or ,more
A ,combination ,vehicle ,with ,a ,gross ,combination ,weight ,rating ,of ,26,001 ,or ,more
,pounds, ,provided ,the ,GVWR ,of ,the ,vehicle ,being ,towed ,is ,in ,excess ,of ,10,00 ,pounds
A ,vehicle ,designed ,to ,transport ,16 ,or ,more ,passengers ,(including ,the ,driver)
How ,can ,you ,lose ,your ,CDL ,fro ,at ,least ,one ,year? ,- ,CORRECT ,ANSWER-Driving ,a
,CMV ,if ,your ,blood ,alcohol ,concentration ,is ,.04% ,or ,higher
Driving ,a ,CMV ,under ,the ,influence ,of ,alcohol
Refusing ,to ,undergo ,blood ,alcohol ,testing
Driving ,a ,CMV ,while ,under ,the ,influence ,of ,a ,controlled ,substance
Leaving ,the ,scene ,of ,an ,accident ,involving ,a ,CMV
Committing ,a ,felony ,involving ,the ,sue ,of ,a ,CMV
Driving ,a ,CMV ,when ,the ,CDL ,is ,suspended
Causing ,a ,fatality ,through ,negligent ,operation ,of ,a ,CMV
How ,can ,you ,lose ,your ,CDL ,for ,3 ,years? ,- ,CORRECT ,ANSWER-if ,that ,offense
,occurs ,while ,you ,are ,operating ,a ,CMV ,that ,is ,placarded ,for ,hazardous ,materials
How ,can ,you ,lose ,your ,CDL ,for ,life? ,- ,CORRECT ,ANSWER-a ,second ,offense
if ,you ,use ,a ,CMV ,to ,commit ,a ,felony ,involving ,controlled ,substances
, When ,you ,will ,be ,put ,out-of-service ,for ,24 ,hours? ,- ,CORRECT ,ANSWER-If ,you ,have
,any ,detectable ,amount ,of ,alcohol ,under ,.04%
How ,can ,you ,lose ,your ,CDL ,for ,60 ,days? ,- ,CORRECT ,ANSWER-If ,you ,have
,committed ,two ,serious ,traffic ,violations ,within ,a ,three-year ,period ,involving ,a ,CMV
How ,can ,you ,lose ,your ,CDL ,for ,120 ,days? ,- ,CORRECT ,ANSWER-For ,three ,or ,more
,serious ,traffic ,violations ,within ,a ,three-year ,period ,involving ,a ,CMV
How ,can ,you ,lose ,your ,CDL ,for ,90 ,days? ,- ,CORRECT ,ANSWER-if ,you ,have
,committed ,your ,first ,violation ,of ,an ,out-of-service ,order
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
You ,must ,notify ,your ,employer ,within ,30 ,days... ,- ,CORRECT ,ANSWER-of ,conviction
,for ,any ,traffic ,violations ,(except ,parking)
You ,must ,notify ,your ,employer ,within ,two ,business ,days... ,- ,CORRECT ,ANSWER-if
,your ,license ,is ,suspended, ,revoked, ,or ,canceled, ,or ,if ,you ,are ,disqualified ,from
,driving
What ,is ,the ,most ,important ,reason ,for ,doing ,a ,vehicle ,inspection? ,- ,CORRECT
,ANSWER-SAFETY
What ,things ,should ,you ,check ,during ,a ,trip? ,- ,CORRECT ,ANSWER-Watch ,gauges
,for ,signs ,of ,trouble. ,
Use ,your ,senses ,to ,check ,for ,problems ,(look,listen,smell,and ,feel) ,
Check ,critical ,items ,when ,you ,stop ,: ,tires, ,wheels, ,rims, ,brakes, ,lights, ,reflectors,
,electrical ,connections ,to ,trailers, ,trailer ,coupling ,devices, ,cargo ,securement ,devices.
Name ,some ,key ,steering ,system ,parts ,- ,CORRECT ,ANSWER-steering ,wheel, ,tie ,rod,
,steering ,shaft, ,hydraulic ,fluid ,reservoir, ,gear ,box, ,pitman ,arm, ,drag ,link, ,steering
,knuckle, ,spindle, ,steering ,arm, ,power ,steering ,cylinder
Name ,some ,suspension ,system ,defects ,- ,CORRECT ,ANSWER-missing ,nuts, ,bolts,
,cotter ,keys, ,or ,other ,parts
bent ,loose ,or ,broken ,parts ,such ,as ,steering ,column, ,
steering ,gearbox, ,or ,tie ,rods ,
Correct Answers 2025
What ,do ,you ,need ,a ,CDL ,to ,operate? ,- ,CORRECT ,ANSWER-Any ,single ,vehicle ,with
,a ,gross ,vehicle ,weight ,rating ,of ,26,001 ,pounds ,or ,more
A ,combination ,vehicle ,with ,a ,gross ,combination ,weight ,rating ,of ,26,001 ,or ,more
,pounds, ,provided ,the ,GVWR ,of ,the ,vehicle ,being ,towed ,is ,in ,excess ,of ,10,00 ,pounds
A ,vehicle ,designed ,to ,transport ,16 ,or ,more ,passengers ,(including ,the ,driver)
How ,can ,you ,lose ,your ,CDL ,fro ,at ,least ,one ,year? ,- ,CORRECT ,ANSWER-Driving ,a
,CMV ,if ,your ,blood ,alcohol ,concentration ,is ,.04% ,or ,higher
Driving ,a ,CMV ,under ,the ,influence ,of ,alcohol
Refusing ,to ,undergo ,blood ,alcohol ,testing
Driving ,a ,CMV ,while ,under ,the ,influence ,of ,a ,controlled ,substance
Leaving ,the ,scene ,of ,an ,accident ,involving ,a ,CMV
Committing ,a ,felony ,involving ,the ,sue ,of ,a ,CMV
Driving ,a ,CMV ,when ,the ,CDL ,is ,suspended
Causing ,a ,fatality ,through ,negligent ,operation ,of ,a ,CMV
How ,can ,you ,lose ,your ,CDL ,for ,3 ,years? ,- ,CORRECT ,ANSWER-if ,that ,offense
,occurs ,while ,you ,are ,operating ,a ,CMV ,that ,is ,placarded ,for ,hazardous ,materials
How ,can ,you ,lose ,your ,CDL ,for ,life? ,- ,CORRECT ,ANSWER-a ,second ,offense
if ,you ,use ,a ,CMV ,to ,commit ,a ,felony ,involving ,controlled ,substances
, When ,you ,will ,be ,put ,out-of-service ,for ,24 ,hours? ,- ,CORRECT ,ANSWER-If ,you ,have
,any ,detectable ,amount ,of ,alcohol ,under ,.04%
How ,can ,you ,lose ,your ,CDL ,for ,60 ,days? ,- ,CORRECT ,ANSWER-If ,you ,have
,committed ,two ,serious ,traffic ,violations ,within ,a ,three-year ,period ,involving ,a ,CMV
How ,can ,you ,lose ,your ,CDL ,for ,120 ,days? ,- ,CORRECT ,ANSWER-For ,three ,or ,more
,serious ,traffic ,violations ,within ,a ,three-year ,period ,involving ,a ,CMV
How ,can ,you ,lose ,your ,CDL ,for ,90 ,days? ,- ,CORRECT ,ANSWER-if ,you ,have
,committed ,your ,first ,violation ,of ,an ,out-of-service ,order
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
You ,must ,notify ,your ,employer ,within ,30 ,days... ,- ,CORRECT ,ANSWER-of ,conviction
,for ,any ,traffic ,violations ,(except ,parking)
You ,must ,notify ,your ,employer ,within ,two ,business ,days... ,- ,CORRECT ,ANSWER-if
,your ,license ,is ,suspended, ,revoked, ,or ,canceled, ,or ,if ,you ,are ,disqualified ,from
,driving
What ,is ,the ,most ,important ,reason ,for ,doing ,a ,vehicle ,inspection? ,- ,CORRECT
,ANSWER-SAFETY
What ,things ,should ,you ,check ,during ,a ,trip? ,- ,CORRECT ,ANSWER-Watch ,gauges
,for ,signs ,of ,trouble. ,
Use ,your ,senses ,to ,check ,for ,problems ,(look,listen,smell,and ,feel) ,
Check ,critical ,items ,when ,you ,stop ,: ,tires, ,wheels, ,rims, ,brakes, ,lights, ,reflectors,
,electrical ,connections ,to ,trailers, ,trailer ,coupling ,devices, ,cargo ,securement ,devices.
Name ,some ,key ,steering ,system ,parts ,- ,CORRECT ,ANSWER-steering ,wheel, ,tie ,rod,
,steering ,shaft, ,hydraulic ,fluid ,reservoir, ,gear ,box, ,pitman ,arm, ,drag ,link, ,steering
,knuckle, ,spindle, ,steering ,arm, ,power ,steering ,cylinder
Name ,some ,suspension ,system ,defects ,- ,CORRECT ,ANSWER-missing ,nuts, ,bolts,
,cotter ,keys, ,or ,other ,parts
bent ,loose ,or ,broken ,parts ,such ,as ,steering ,column, ,
steering ,gearbox, ,or ,tie ,rods ,
