# Free Alaska CDL General Knowledge Practice Test 2023

Our CDL practice tests:
Based on 2021 AK commercial driver's license manual
Perfect for first-time, renewal applicants
AK CDL General Knowledge Test format:
50 questions
80% passing score
List of questions
1.
You are driving at night and you must dim your headlights for traffic. Good speed management says you should:
2.
The most important thing you can do when dealing with an aggressive driver is:
3.
What is the best way to prevent brake failure on long downgrades?
4.
The primary cause of fatal crashes is:
5.
Which statement is true about extending the 14 hour on duty clock by using the 8 hour sleeper berth provision?
6.
As the blood alcohol concentration (BAC) goes up, what happens?
7.
Hazmat placards are what shape?
8.
At what time does a violation occur on this log?
9.
Which of these is true about tires and hot weather?
10.
When driving in very hot weather, it is critically important to carefully inspect:
11.
12.
What is the Federal Standard for maximum weight on a tandem axle vehicle?
13.
All vehicles on all highways have a maximum allowable height of:
14.
Sliding the 5th wheel will change the weight distribution almost exclusively between which sets of axles?
15.
What factor has the greatest affect on how much weight is moved per hole in the tandem slider rail?
16.
When driving, when is it acceptable to signal other drivers that it is safe to pass?
17.
While exiting the vehicle for a 'look', how many points of contact must you keep with the vehicle at all times?
18.
If you cannot see the driver of a vehicle, then:
19.
When should you test your parking brakes?
20.
Which of the following require an additional CDL endorsement to drive?
21.
EOBR's are required to automatically record which of the following?
22.
You are checking your wheels and rims for a pre-trip inspection. Which of these statements is true?
23.
What violation has occurred at 10:00 a.m. on Day 2?
Day 1

Day 2
24.
Which of these is a good thing to do when steering to avoid a crash?
25.
Which of these is true about tire pressure?
26.
27.
Whenever possible, a row of metal coils with eyes vertical requires one direct tiedown to secure against rearward movement at what maximum angle?
28.
An anchor point is defined as:
29.
Empty trucks:
30.
Should brake adjustment be checked often?
31.
Your log must include all of the following, EXCEPT:
32.
Under normal circumstances, what is the maximum allowed width for commercial vehicles?
33.
Your vehicle has hydraulic brakes. While traveling on a level road, you press the brake pedal and find that it goes to the floor. Which of these statements is true?
34.
When crossing railroad tracks in a placarded vehicle or a bus _________.
35.
You are driving a heavy vehicle. You must exit a highway using an off-ramp that curves downhill. You should:
36.
Combination vehicles must display license plates:
37.
If loading and securing paper rolls on a second layer ______.
38.
Where in the trailer could you place cargo so that the weight applied to the trailer tandems is greater than the weight of the cargo itself?
39.
What is the correct method of determining what percentage of fuel is distributed between the steer axle and the drive axles?
40.
Methods of securing building materials against forward motion include:
41.
What violation occurs in the example below?
Day 1
42.
Which of these statements about the hazard of vehicle fire is true?
43.
What can be the result of too much weight on the back of the trailer?
44.
45.
Posted heights at overpasses:
46.
The pre-trip inspection should show that the exhaust system is _____.
47.
Which log below contains at least one violation?
Day 1

Day 2
48.
Specifically prohibited in the testing area are cellphones and:
49.
According to the general rule, for how much space should you leave in front of your vehicle at speeds below 40 mph?
50.
The pre-trip inspection should generally include how many steps?