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CDL Practice Test: Logbook Rules

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CDL Practice Test: Logbook Rules

Logbook Rules Questions

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Good Luck!

What happens if you spend 8 hours in the sleeper berth?
  • Those hours will not count as part of your 14 hour on duty time, and therefore, would allow you to extend the time during which you could use your maximum 11 hours of driving
  • You will regain 8 hours on your 14 hour on duty time
  • Spending 8 hours in the sleeper berth will completely reset your 60/70 hour on duty clock
  • Spending 8 hours in the sleeper berth will completely reset your 14 hour on duty time and your 11 hour driving time
This is a question from page 95 - click here to look up the answer

Quote From Page 0 Of The Illinois CDL Manual:

Eight hours of sleeper berth time:

You may also use the sleeper berth to extend the 14 hour limit. Any period in the sleeper berth of at least 8 consecutive hours will not count as part of the 14 hours, and, therefore, would allow you to extend the time during which you could use your maximum 11 hours of driving.

TruckingTruth's Advice:

Basically, when you take an 8 hour break in the sleeper berth, your time simply extends. You can't reset your hours completely, but those 8 hours will not count against your 14 hour on duty time.

In other words, let's say you have the following hours remaining:

  • 14 hour duty clock: 7 hours
  • 11 hour driving clock: 6 hours

If you go into the sleeper berth, in 8 hours you will still have the same time remaining.

If you had taken 10 consecutive hours off instead, your 14 and 11 hour limits would have completely reset. That's why the 8 hour sleeper berth rule should only be used when necessary. Normally this rule is used when it is necessary in order to make a delivery legally and on-time.

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On which of the below logs did a violation occur?

Day 1

Day 2

  • Day 2 contains at least one violation
  • No violations occurred on either day
  • Both days contain at least one violation
  • Day 1 contains at least one violation
This is a question from page 98 - click here to look up the answer

Quote From Page 0 Of The Illinois CDL Manual:

Day 1

Day 2

Violations: There are no violations in this example.

Explanation - 11 Hour Limit: After 10 consecutive hours off duty, the driver had 11 available hours of driving and began driving at 11:00 a.m. on Day 1. The driver drove between the hours of 11:00 a.m. until 4:00 p.m. (5 hours), went off duty for 1 hour, then drove between 5:00 p.m. and 11:00 p.m. (6 hours). No more driving was completed on Day 1 so the driver did not exceed the 11 hour driving limit (5 + 6). Starting at Midnight going into Day 2, the driver may not drive a CMV until he/she goes off duty for a minimum of 10 consecutive hours, which is indicated on the log. On Day 2, the driver only operated a CMV for 3 hours and so no violation occurred.

Explanation - 30 Minute Break: The 1 hour off duty break between 4:00 p.m. and 5:00 p.m. on Day 1 fulfilled the 30 minute break requirement. While only 30 minutes off duty is required, taking a break longer than 30 minutes (as in this case) is perfectly legal. The driver may drive a CMV only if 8 hours or less have passed since the end of the driver’s last off duty period of at least 30 minutes. On Day 2, the driver was only on duty for a 3 hour stretch which wouldn't require the 30 minute break. Both Day 1 and Day 2 of this example are free from any 30 minute break violations.

Explanation - 14 Hour Limit: After taking 10 consecutive hours off duty, the driver changed to on duty status at 10:00 a.m. on Day 1. This is the calculation point for the 14 hour limit so the driver has until Midnight to complete all driving tasks. At midnight, the driver switched to the sleeper berth for 10 consecutive hours. Since the driver performed all driving tasks within 14 hours on Day 1, no violation occurred. No violation occurred on Day 2, either, since the driver was only on duty (driving) for a total of 3 hours.

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Which of the following is considered on duty time
  • All driving time
  • All time loading and unloading your truck
  • All time inspecting or servicing your truck, including fueling
  • All of these are considered on duty time
This is a question from page 94 - click here to look up the answer

Quote From Page 0 Of The Illinois CDL Manual:

What Is Considered On Duty Time?

The 60 / 70 hour limit is based on how many hours you work over a 7 or 8 day period. Just what kind of work is considered on duty time? It includes all time you are working or are required to be ready to work, for any employer. Here are some specific activities which are considered to be on duty time:

  • All time spent at a plant, shipping / receiving facility, terminal, or other facility of a motor carrier, unless you are in your sleeper berth or have been relieved of all work related responsibilities.
  • All time inspecting or servicing your truck, including fueling it and washing it.
  • All driving time.
  • All other time in a truck unless you are resting in a sleeper berth.
  • All time loading, unloading, supervising, or attending your truck; or handling paperwork for shipments.
  • All time spent providing a breath, saliva, hair, or urine sample for drug / alcohol testing, including travel to and from the collection site.
  • All time spent doing any other work for a motor carrier, including giving or receiving training and driving a company car.
  • All time spent doing paid work for anyone who is not a motor carrier, such as a part-time job at a local restaurant.

The bottom line is that on duty time includes all time you are working for a motor carrier, whether paid or not, and all time you are doing paid work for anyone else.

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Which statement is true?
  • If you are doing work for your motor carrier but aren't being paid for the work, you may log it as off duty time
  • None of these statements are true
  • All time taking care of your truck when it is broken down may be logged as off duty time
  • Washing your truck may be logged as off duty time
This is a question from page 94 - click here to look up the answer

Quote From Page 0 Of The Illinois CDL Manual:

What Is Off Duty Time?

By understanding the definition of on duty time, you will get a good idea of what is considered off duty time. In order for time to be considered off duty, you must be relieved of all responsibility for performing work and be free to pursue activities of your own choosing.

If you are not doing any work (paid or unpaid) for a motor carrier, and you are not doing any paid work for anyone else, you may record the time as off duty time.

Personal Use Of A Commercial Motor Vehicle

It is possible that occasionally you may not use a truck in commerce at all. You may be moving your personal belongings to a new house or, as a hobby you may be taking your horses to a horse show. As long as the activity is not in support of a business, you are not operating in commerce.

If you are not operating your truck in commerce, you are not subject to the hours of service regulations.

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What violation occurs on the below example?

Day 1

Day 2

  • There is an 11 hour rule violation only
  • There is an 11 hour rule violation as well as a 14 hour rule violation
  • There is an 11 hour violation as well as a 30 minute break violation
  • There is a 14 hour rule violation only
This is a question from page 99 - click here to look up the answer

Quote From Page 0 Of The Illinois CDL Manual:

Day 1

Day 2

Violations: There is a violation of the 11 and 14 hour rules at 2:00 p.m. on Day 1.

Explanation - 11 Hour Limit: After 10 consecutive hours off duty prior to the start of Day 1, the driver had 14 hours of on duty time available and 11 hours of driving time available, starting at Midnight on Day 1. The driver performed driving duties during the following times on Day 1:

  • 1:00 a.m. to 5:00 a.m. (4 Hours)
  • 6:00 a.m. to 10:00 a.m. (4 Hours)
  • 11:00 a.m. to 3:00 p.m. (4 Hours)

Given the above breakdown of driving hours, we can see that the driver had operated a CMV for 12 total hours (4 + 4 + 4) on Day 1 without taking a 10 consecutive hour break. So on Day 1, the 11 hour driving limit has been exceeded and a violation occurred at 2:00 p.m. On Day 2, the driver began driving at 1:00 a.m. after taking 10 consecutive hours off duty. This reset the drivers 11 and 14 hour limits, bringing the new calculation point to 1:00 a.m. After driving for 5 hours between 1:00 a.m. and 6:00 a.m., the driver never returned to driving again. Therefore, no violation occurred on Day 2.

Explanation - 30 Minute Break: On Day 1, the driver went on duty at midnight and would therefore need a minimum of a 30 minute break off duty in order to drive beyond 8:00 a.m. However, a 1 hour break was completed at 5 a.m. satisfying the 30 minute break provision and allowing the driver to continue driving without violating the break provision. On Day 2, the driver went on duty at 1:00 a.m. which is the new starting calculation point after taking a 10 consecutive-hour break. In order to continue driving beyond 9 a.m. (8 hours after the starting calculation point), the driver would need to take a minimum of 30 minutes off duty or in the sleeper berth. However, at 6 a.m. the driver switched to on duty and remained there until switching to the sleeper berth at 11 a.m. The driver was allowed to be on duty beyond 9 a.m. and only driving would have been prohibited. Since the driver did not operate a CMV for the rest of the day, no violation occurred.

Explanation - 14 Hour Limit: After 10 consecutive hours off duty prior to the start of Day 1, the driver had 14 hours of on duty time available starting at Midnight on Day 1. While the driver would have been allowed to remain on duty indefinitely, no driving was allowed after 14 hours (2:00 p.m.).

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At what time does a violation occur on this log?

  • 7:00 p.m.
  • 9:00 p.m.
  • 10:00 p.m.
  • 8:00 p.m.
This is a question from page 104 - click here to look up the answer

Quote From Page 0 Of The Illinois CDL Manual:

Violations: There is a 14 hour rule violation from 10:00 p.m. - 11:00 p.m.

Explanation - 11 Hour Limit: After 10 consecutive hours off duty, the driver had 11 hours of driving time available starting at midnight. The driver completed 9 hours of driving by 11:00 p.m. and went off duty, so there are no violations of the 11 hour rule.

Explanation - 30 Minute Break: Since the driver was never on duty longer than 8 consecutive hours, the 30 minute break provision was never a factor.

Explanation - 14 Hour Limit: After 10 consecutive hours off duty, the driver had 14 hours available at midnight. The driver used 10 of those hours by 10:00 a.m. before entering the sleeper berth for 8 consecutive hours. The 8 consecutive hour sleeper berth period is excluded from the 14 hour limit, but the 1 hour off duty period connected to that sleeper berth period is not. So the 14 hour limit was reached at 10:00 p.m., 4 hours after the end of the sleeper berth period, and the driver violated the rule by continuing to drive for another hour. To remain in compliance, the driver should have either stopped driving at 10:00 p.m., or remained in the sleeper berth from 6:00 p.m. - 7:00 p.m.

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What time does a 14 hour rule violation occur?

  • There is no 14 hour rule violation in this example
  • At 3:00 p.m.
  • At 6:00 p.m.
  • At 5:00 p.m.
This is a question from page 104 - click here to look up the answer

Quote From Page 0 Of The Illinois CDL Manual:


Violations: There is a 30 minute break violation from 11:00 a.m. to 1 p.m. and again from 5 p.m. to 6 p.m.



Explanation - 11 Hour Limit: After 10 consecutive hours off duty, the driver was eligible to drive for up to 11 hours beginning at 4:00 a.m. The driver drove only 6 hours, within the legal limit.



Explanation - 30 Minute Break: The driver went on duty at 4:00 a.m. and was eligible to drive during the next 8 consecutive hours until noon. By that time, a 30 minute off duty break would be required. However, the driver never went off duty within that 8 hour period. Therefore, at noon, the driver was in violation of the 30 minute break provision. Since drivers may remain on duty without a 30 minute break, there is no violation during the on duty hours of 1 p.m. to 5 p.m. However, at 5 p.m. the driver returned to driving but still never took 30 minutes off duty. As such, this driver was in violation of the 30 minute break provision again from the hours of 5 p.m. to 6 p.m. To remain in compliance, the driver should have taken a 30 minute off duty break at 10:00 a.m. This would have kept the driver in compliance for both driving periods.



Explanation - 14 Hour Limit: After 10 consecutive hours off duty, the driver had 14 hours available beginning at 4:00 a.m. The driver stopped driving a CMV upon reaching the 14 hour limit at 6:00 p.m., so there are no violations.

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What does HOS stand for?
  • Highway Organization System
  • Hours of Service
  • Hometime Optimization System
  • Hours on Site
This is a question from page 92 - click here to look up the answer

Quote From Page 0 Of The Illinois CDL Manual:

As a truck or bus driver, you'll be required to record and abide by all working and driving limitations which were created by the Department of Transportation (DOT). The rules govern a commercial driver's working and resting hours and are referred to as Hours of Service (HOS) Regulations.

TruckingTruth's Advice:

During the rest of this program, we will be referencing HOS instead of saying Hours of Service every time. As an industry standard, HOS always stands for Hours of Service and the vast majority of people in the trucking industry are very familiar with the term HOS.

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