Free Iowa CDL General Knowledge Practice Test 2022

You are looking for actual practice for your coming CDL test? So you have come to the right place. Our IA General Knowledge Practice Test has the same questions as the real exam which is based on the Iowa CDL Manual. Our CDL practice test pack covers most of the subject areas on the Iowa General Knowledge Test such as shifting techniques, railroad crossing safety, drunk driving laws, and much more to make you become a safer driver. In addition, each question has a detailed explanation that will help you understand the concept and answer future questions about it correctly. If you don't get the pass right away, don't worry, you can take this practice test an unlimited number of times to make sure you learn all the questions. Our Iowa CDL Practice Test will refine your driving knowledge so you can earn your CDL and start driving on the roads. Let’s take our practice test now!

Our CDL practice tests:
Based on 2022 IA commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
IA CDL General Knowledge Test format:
50 questions
40 correct answers to pass
80% passing score
List of questions
1.
You're loaded heavy with 1/2 tank of fuel onboard. Using the following numbers, where should you move the 5th wheel to get it setup properly?

steer axle: 10,800 pounds
drive axles: 34,700 pounds
Weight transfer: 500 pounds per hole
2.
Which of these is NOT a danger when an automatic transmission is forced into a low gear at a high speed?
3.
You are inspecting hydraulic brakes. You should pump the brake pedal three times then apply firm pressure to the pedal for five seconds. If the brakes are working properly, the pedal should:
4.
When using stab braking, all of the following are steps except
5.
When making a left turn, you should do which of the following?
6.
As the blood alcohol concentration (BAC) goes up, what happens?
7.
A hook-lift container is:
8.
A row of metal coils loaded with eyes lengthwise requires how many direct tiedowns over each side-by-side row or coil?
9.
You should lightly apply your brakes to flash the brake lights if:
10.
Commercial drivers are allowed to hold CDL's in how many states at the same time?
11.
When driving in very hot weather, it is critically important to carefully inspect:
12.
When starting to move the truck, when is it acceptable to roll backwards?
13.
What is a cab shield?
14.
When coming down a long, steep downgrade, what should be your primary method of controlling your speed?
15.
When loading and securing a boulder, it should be:
16.
Which of these is true about notifying the authorities after an accident occurs?
17.
To secure a cubic-shaped boulder, how many tiedowns are required, at minimum?
18.
How many tiedowns are required for cargo that is prevented from forward movement?
19.
Touching or crossing over a boundary line during the driving exam is considered a(n):
20.
A bulkhead is defined as:
21.
All of the following are key parts of the steering system except:
22.
When entering or crossing traffic, observe all of the following except:
23.
In bad weather many drivers tailgate large vehicles. What should you do?
24.
Why should you always plan on arriving to your destination as quickly as possible?
25.
Which of these do not provide extra gears on some trucks?
26.
When securing concrete pipe loaded crosswise, arrange the top tier:
27.
When stopping behind another vehicle, a safe gap to leave is one that:
28.
Which of these actions are NOT recommended for a left turn?
29.
When driving at night you should use your high beams when oncoming traffic is not within ____ feet?
30.
What violations occurred in this example?
Day 1

Day 2
31.
If you are forced to leave the road in an emergency, all of these are good guidelines except:
32.
What is the total WLL of two 20mm nylon ropes and one 5/8-inch wire rope?
33.
The maximum number of pull-ups allowed during the driving exam before failure is:
34.
Empty trucks:
35.
Which of these would NOT help if windshield is covered with ice?
36.
When changing lanes, put you turn signal on, and:
37.
Merging to the road is safest if you:
38.
If loading and securing paper rolls on a second layer:
39.
Backing your vehicle in a straight line without crossing over or touching the exercise boundaries is called:
40.
Which of these statements about tires and hot weather driving is true?
41.
What is the minimum nominal dimension of timber blocking used to secure concrete pipe?
42.
What does BAC stand for?
43.
When entering and exiting an expressway, and also generally any time you drive, you should:
44.
Using the following numbers for your calculations, how much weight will come off your drive axles?

Miles per gallon: 6

Miles travelled: 360

Percentage of fuel weight on drive axles: 30%
45.
Which day below contains a 30 minute break violation?
Day 1

Day 2
46.
Where will the weight of fuel be distributed?
47.
Option #1 for securing coils transported with eyes lengthwise includes:
48.
The term 'edge protector' refers to:
49.
On combination vehicles longer than 20 feet or wider than 80 inches, amber or yellow reflectors must be installed:
50.
Submitting fingerprints for a background check will be required for drivers applying for: