Free Illinois 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 IL General Knowledge Practice Test has the same questions as the real exam which is based on the Illinois CDL manual. Our CDL practice test covers most of the subject areas on the Illinois 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 Illinois 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 IL commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
IL CDL General Knowledge Test format:
50 questions
40 correct answers to pass
80% passing score
List of questions
1.
You can see a marking on a vehicle ahead of you. The marking is a red triangle with an orange center. What does the marking mean?
2.
The driver is responsible for all of the following except for:
3.
A vertical barrier across the front of the deck of a vehicle to prevent forward movement of cargo is a:
4.
Define 'bolster':
5.
Which may be a sign of tire failure?
6.
On what day and time does a 14 hour rule violation occur?
Day 1

Day 2
7.
All of the following are requirements for dividing vehicles over 33ft except:
8.
Hydroplaning:
9.
Special permits will be required for loads that are:
10.
When using stab braking, all of the following are steps except
11.
Which of the following systems should receive extra attention during winter weather inspection?
12.
What does the 14 hour on duty limit mean?
13.
ABS malfunction lights will be what color?
14.
Implied consent means:
15.
When securing concrete pipe with a diameter up to 45 inches loaded crosswise as a group, a crosswise tiedown should be used every how many feet?
16.
All of the following are considered excessive speeding except:
17.
A left-hand turn should end:
18.
The distance that you should look ahead of your vehicle while driving amounts to about ___ miles at normal highway speed.
19.
When entering or crossing traffic, observe all of the following except:
20.
Most serious skids result from:
21.
To help slow the vehicle to reduce the need for using the service brakes, some vehicles are equipped with:
22.
Another name for 'skid', a platform or tray on which cargo is placed so that it can be handled as an article.
23.
You should signal continuously while turning because:
24.
If you are driving while sleepy, the safest remedy is:
25.
What affect will sliding the trailer tandems forward have on the weight distribution?
26.
Banding is:
27.
Which of the following require an additional CDL endorsement to drive?
28.
Which of these statements about cargo loading is true?
29.
Which day on the example below contains a violation?
Day 1

Day 2
30.
The object of the pre-trip inspection is:
31.
Who must complete a log?
32.
What is a cab shield?
33.
Communication means:
34.
Extra care is needed to keep your vehicle centered in your lane because commercial vehicles:
35.
What is the minimum requirement for securing roll-off and hook containers?
36.
A combined Tank vehicle & hazardous material endorsement will be designated with what letter on the CDL?
37.
You are checking your brakes and suspension system for a pre-trip inspection. Which of these statements is NOT true?
38.
To protect the area after an accident, steps you should take include:
39.
Some common causes of vehicle fires are spilled fuel, improper fueling, under-inflated tires, and:
40.
Which of the following is NOT a characteristic of tire failure?
41.
What does emergency braking mean?
42.
What is the maximum legal weight for the drive axles or trailer tandems?
43.
When entering and exiting an expressway, and also generally any time you drive, you should:
44.
Which statement below is false?
45.
The narrowest end of a boulder should be pointed:
46.
When involved in an accident and not seriously injured, basic steps you should take include assist the injured, notify authorities, and:
47.
Which of these is NOT a good rule to follow when caring for injured persons at an accident scene?
48.
Option #1 for securing coils transported with eyes lengthwise includes:
49.
Which log below contains at least one violation?
Day 1

Day 2
50.
Specifically prohibited in the testing area are cellphones and: