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.
To help you to stay alert while driving, you should:
2.
When are helpers needed to back your vehicle?
3.
Which statement below is false?
4.
The North American Cargo Securement Standard cover vehicles weighing:
5.
Placing a phone call while driving:
6.
Which of these is a good thing to do when driving at night?
7.
Which of these is not a brake check you normally do during your walk-around inspection?
8.
There are three maximum limits you must follow at all times. Those limits are:
9.
Who is responsible for ensuring that the vehicles, anchor points and other securement components are in good working order?
10.
If your brakes fail on a downgrade, you must first:
11.
Instead of stopping in an emergency, what is many times the safer action?
12.
When road lighting is poor or confusing, you should:
13.
Which of these is not required knowledge for drivers seeking a hazardous material endorsement?
14.
You receive a scale ticket and your drive axles are 35,700 and your trailer tandems are 30,600. Based upon a trailer with 4 inch slider rail hole spacings, what is the minimum number of holes you would have to slide the tandems to get the weight legal, and what would the final weights be?
15.
In case of which fires can you use water to put it out?
16.
Most serious skids result from:
17.
What is the maximum allowable weight on a 5-axle combination vehicle?
18.
Cargo and securement devices should be checked within how many miles after starting a trip?
19.
The load carrying area of a truck, trailer, or intermodal container is referred to as the:
20.
Who enforces HOS regulations?
21.
Passing on the wrong side of the road, passing in a school zone, and driving the wrong way on a one-way street are all specific examples of:
22.
A load weighing 41,500 lbs requires securement against rearward force of:
23.
What are most front-wheel skids caused by:
24.
Brake fade:
25.
Which of these statements about rear drive wheel braking skid is true?
26.
You are driving a 40-foot vehicle at 55 mph. The road is dry, and visibility is good. What is the least amount of space that you need to have in front of your vehicle?
27.
Controlled braking is:
28.
An anchor point is defined as:
29.
When calculating directional forces, 'g' is expressed as:
30.
'Blocking' is defined as:
31.
In general, the best braking technique to use in maintaining a safe speed when driving on a downgrade is:
32.
In the following picture, what are axles 2 and 3 commonly referred to as?

33.
Where should the ignition key be during the pre-trip inspection?
34.
Specific cargo securement rules on automobiles and light trucks apply to vehicles of what weight?
35.
After turning and getting up to speed:
36.
Which of these statements about overhead clearance is true?
37.
You are driving a heavy vehicle. You must exit a highway using an off-ramp that curves downhill. You should:
38.
What are the two primary laws governing the placement of the tandems?
39.
One option of positioning bundles of building materials is:
40.
What is the best way to determine what percentage of the weight of fuel will go to each set of axles?
41.
The distance that you should look ahead of your vehicle while driving is about __ at low speed.
42.
Which of these statements about engine overheating is true?
43.
All of these are requirements for securing longwood lengthwise except:
44.
What is the minimum WLL of a tiedown used to secure logs?
45.
When securing concrete pipe over 45 inches loaded crosswise, which direction must the tiedowns on the front half of the load run?
46.
In the following picture, what are axles 4 and 5 commonly referred to as?

47.
Products that pose a risk to health, safety
and property during transportation are called:
48.
If you're able to arrive early for a delivery, you should:
49.
What kind of extinguisher would you use to fight an electrical fire?
50.
The maximum number of allowable looks and/or pull-ups on any particular exam exercise is: