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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!

Which violation occurs on the below example?

  • There is a 14 hour rule violation
  • There is a 30 minute break violation
  • There is an 11 hour rule violation
  • There are no violations on this log
This is a question from page 98 - 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 9:00 p.m. - 10:00 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 2:00 a.m. The driver drove for just 1 hour between 9:00 p.m. and 10:00 p.m., far below the 11 hour driving limit.

Explanation - 30 Minute Break: The driver never drove a CMV after being on duty for more than 8 hours. Therefore, no violation has occurred.

Explanation - 14 Hour Limit: After 10 consecutive hours off duty, the driver had 14 hours available beginning at 2:00 a.m. Because the 14 hour calculation includes all off duty time of less than 10 consecutive hours, all of this driver's time between 2:00 a.m. and 10:00 p.m. is included in the calculation. Even though the driver spent 9 consecutive hours off duty, the 14 hour limit does not get extended. In order for an 8 consecutive hour (or longer) break to extend the 14 hour limit, the 8 consecutive hours must occur in the sleeper berth. However, the driver could have spent 10 hours off duty and both the 11 and 14 hour limits would have reset. The driver reached the 14 hour limit at 4:00 p.m. and violated the 14 hour rule at 9:00 p.m. by driving a CMV beyond the 14 hour duty limit.

NOTE: Even though this driver had 10 hours off duty during the day and only drove for 1 hour, that hour of driving was done in violation of the 14 hour rule. The driver did not obtain another 10 consecutive hours off duty, so the calculation point does not change and the 9-hour break must be included in the calculation of the 14 hour limit. After 10:00 p.m., the driver must be off duty for at least 10 consecutive hours, or in a sleeper berth for at least 8 consecutive hours, before driving again.

To remain in compliance: The driver should not have driven after 4:00 p.m., which was the end of the 14 hour limit. If he or she had gone into a sleeper berth for the 9 hour break, that break would have been excluded from the 14 hour calculation and the driver would have remained in compliance. Furthermore, the driver could have elected to remain off duty until 10:00 p.m. for a total of 10 hours off duty which would have reset both the 11 hour and 14 hour limits.

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Who enforces HOS regulations?
  • Carriers
  • DOT Officials
  • All of these answers are correct
  • Police Officers
This is a question from page 92 - click here to look up the answer

Quote From Page 0 Of The Illinois CDL Manual:

Who Enforces HOS Regulations?

Law enforcement:

Generally, DOT officers are the ones who enforce HOS rules, although any police officer may inspect a driver's logbook. Individual states are responsible for maintaining weigh stations where drivers are pulled in for random vehicle and logbook inspections. Drivers may also be pulled over for random checks by police officers or DOT officials at any time and have their logbooks inspected. While it's not a frequent occurrence, chances are your logbook will be checked every now and then. Be ready for it at all times!

Carriers:

In addition to law enforcement and DOT officials, most carriers have their own company policies regarding logbooks. A drivers logs are frequently reviewed by internal auditors for discrepancies or violations. A driver with too many violations might be warned, disciplined, or terminated (terminating a driver usually only occurs after several violations). The increased use of electronic logging devices has forced carriers to crack down on HOS violations even more.

TruckingTruth's Advice:

You should always be prepared for a random inspection. Your logs must always be current. If you get pulled into a weigh station or get pulled over for a random inspection, which does happen, and your logbook is not current, you will be cited for a violation.

The carrier you work for will also have logbook auditors. Companies themselves are required to keep driver logs for a period of time and receive random audits from the DOT. If too many of their drivers have logbook violations, the company can be fined or otherwise penalized. They have an interest in passing those audits so if you cause too many problems for them, they will take action.

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What violations occurred on the below example?

  • There is an 11 hour rule violation and a 30 minute break violation
  • There is a 14 hour rule violation and a 30 minute break violation
  • There are no violations on this example
  • There is a 30 minute break violation
This is a question from page 101 - 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 p.m. to midnight.

Explanation - 11 Hour Limit: After 10 consecutive hours off duty, the driver was eligible to drive for up to 11 hours beginning at midnight. The driver drove for 5 hours before obtaining 10 consecutive hours off duty using a combination of consecutive off duty and sleeper berth time. This 10 hour break moves the calculation point to 3:00 p.m., at which point the driver had another 11 hours available. Because the driver then drove for only 9 hours (out of an available 11), there are no violations.

Explanation - 30 Minute Break: After taking 10 consecutive hours off duty from 5:00 a.m. to 3:00 p.m., the driver was eligible to drive for 11 hours. However, the driver did not meet the 30 minute break provision requirements. At 11 p.m., the driver had been on duty longer than 8 consecutive hours without a 30 minute break. As such, the driver was not allowed to operate a CMV from the hours of 11:00 p.m. to Midnight.

Explanation - 14 Hour Limit: After 10 consecutive hours off duty on the previous day, the driver had 14 hours available beginning at Midnight. The driver accumulated just 5 on duty hours before going off duty for another 10 consecutive hours. The calculation point then moves to 3:00 p.m., and after that point the driver accumulated 9 hours on duty which is within the legal 14 hour limit.

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Which statement is true about extending the 14 hour on duty clock by using the 8 hour sleeper berth provision?
  • None of these answers are correct
  • You can section the 8 hour break into two 4 hour segments
  • The 8 hours can be split between sleeper berth time and off duty time as long as those hours are consecutive
  • You must spend all 8 hours consecutively in the sleeper berth
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.

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Is there a 14 hour rule violation on Day 2?

Day 1

Day 2

  • Yes, at 7:00 a.m.
  • Yes, at 1:00 a.m.
  • No 14 hour rule violation occurs
  • Yes, at 9:00 p.m.
This is a question from page 100 - 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 hours of driving time available beginning at 2:00 a.m. on Day 1. The driver used those 11 hours by 4:00 p.m. on Day 1, when he or she entered the sleeper berth for 8 consecutive hours. Because the driver accumulated at least 10 hours of rest using a combination of at least 8 consecutive hours in a sleeper berth (4:00 p.m. to Midnight on Day 1) and another break of at least 2 consecutive hours (8:00 a.m. to 10:00 a.m. on Day 1), he or she was eligible for the split sleeper berth provision. This moves the calculation point to the end of the first of the two periods of rest, or 10:00 a.m. on Day 1. Starting the calculation from there, the driver accumulated another 10 hours of driving by 5:00 a.m. on Day 2. By 7:00 a.m. on Day 2, the driver accumulated another pair of qualifying breaks totaling at least 10 hours [4:00 p.m. to Midnight on Day 1 (8 hours) and 5:00 a.m. to 7:00 a.m. on Day 2 (2 hours)]. This moves the calculation point again, to the end of the first of the two breaks, or Midnight beginning Day 2. From there, the driver accumulated another 10 hours of driving by 1:00 p.m. on Day 2. The pattern of 8/2 split sleeper berth provisions continued, with no 11 hour violations.

Explanation - 30 Minute Break: On Day 1, the driver spent a total of 12 hours split between on duty and driving time. In order to continue driving beyond the 8th hour, a 30 minute break must be recorded. The calculation point on Day 1 is 2:00 a.m., so in order to continue driving after 10:00 a.m. (8 hours later), a minimum of 30 minutes must be spent off duty. In this example, the driver spent 2 hours in the sleeper berth from 8:00 a.m. to 10:00 a.m. and this satisfies the 30 minute break requirement, so no violation occurred. On Day 2, the driver first went on duty at midnight. In order to drive a CMV after 8:00 a.m. (8 hours later) a minimum of a 30 minute break off duty would be required. The driver met that requirement by taking a 2 hour break off duty (sleeper berth) break between 5:00 a.m. and 7:00 a.m. The hours spent driving between 9:00 p.m. and Midnight on Day 1 are also legal since an 8 hour break was taken between 1:00 p.m. and 9:00 p.m.

Explanation - 14 Hour Limit: Calculation of the 14 hour limit begins at 2:00 a.m. on Day 1. The driver accumulates 14 hours by 4:00 p.m. before entering the sleeper berth. Because the driver then met the requirements for the split sleeper berth provision, the calculation point moves to the end of the first qualifying break, or 10:00 a.m. on Day 1. So at Midnight leading into Day 2, the driver had accumulated 6 hours. By 7:00 a.m. on Day 2, the driver accumulated another pair of qualifying breaks totaling at least 10 hours and has not exceeded the 14 hour limit. This moves the calculation point again, to the end of the first of the two breaks, or Midnight leading into Day 2. From there, the driver accumulated 13 of 14 hours by 1:00 p.m. on Day 2. This split sleeper berth pattern continued, with no 14 hour limit violations.

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Which statement below is false?
  • Authorized government inspectors may check your logs at any time
  • You never need to log your days off
  • You must have a log for each day of the last 8 days
  • The current day's log must be current to your last change of duty status
This is a question from page 96 - click here to look up the answer

Quote From Page 0 Of The Illinois CDL Manual:

You are required to account for every day on your log, even days off, unless you are covered by a logbook exception on any of the days. The log must cover all 24 hours of every day.

Authorized government inspectors may check your logs at any time. You must have a log for each day of the last 8 days that you were required to log (you might have been under an exception on some of those days). The current day’s log must be current to your last change of duty status. Inspectors check your logs to see if you have violated the hours of service regulations. Violations of the hours of service regulations can result in being fined and/or placed out of service.

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How many on duty hours are remaining after the following has been logged (use a scratch sheet of paper if you need to):

- On duty/not driving: 3 hours

- Driving: 4 hours

- Sleeper berth: 8 hours

- Driving: 7 hours

- Off duty: 2 hours

  • 14 hour clock: 7 hours
    11 hour clock: 6 hours
  • 14 hour clock: 5 hours
    11 hour clock: 4 hours
  • Both the 11 and 14 hour limits have reset so all hours are now available
  • There is no time remaining on the drivers 11 or 14 hour clocks
This is a question from page 95 - click here to look up the answer

Quote From Page 0 Of The Illinois CDL Manual:

Example of the split sleeper berth rule:

After taking 10 consecutive hours off duty, You start to work at 7:00 a.m. At 10:00 a.m., you begin driving and at 2:00 p.m. you spend 8 hours in your sleeper berth before resuming driving again at 10:00 p.m. At 10:00 p.m. Those 8 hours in the sleeper berth do not count as part of the 14 hour limit.

This means that you only used 7 of your 14 hours so far, and your 14 hour limit gets extended from 9:00 p.m. that evening to 5:00 a.m. the next morning. Your driving limit is still 11 hours and so far you have only driven 4 hours. That means you have 7 hours of driving time still available, allowing you to drive from 10:00 p.m. until 5:00 a.m.

At 5:00 a.m. you take your second rest period, going off duty for 2 hours. That brings you to 7:00 a.m.

Since you met the regulation of getting the equivalent of 10 hours off duty in two periods, you now have a new calculation point for figuring your 11 and 14 hours. Your new calculation point is at the end of the first rest period, which was at 10:00 p.m. Your new 14 hour period begins at 10:00 p.m. and ends 14 hours later, at noon the following day. During that new 14 hour period you are allowed 11 hours of driving.

From 10:00 p.m. to 7:00 a.m. you used-up 9 of the 14 duty-period hours and 7 of the 11 hours of driving time. Therefore you now have 5 hours of duty time available during which you are allowed to drive 4 hours.

Because your 14 hour duty period ends at 12:00 noon that day, before you can drive a CMV again after 12:00 noon, you must have another rest period in the sleeper berth of at least 8 consecutive hours (if you are using the sleeper-berth exception). After that you must again recalculate how many hours you will have available. Your new calculation point will be the end of the 2-hour off duty period you took earlier (7:00 a.m.).

TruckingTruth's Advice:

This example can be pretty confusing. Go back to page 95 for the full write up and explanation if you're still confused. It's very important to have a good understanding of the split sleeper berth provision.

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Is the following example within legal HOS limits?

- A trucker starts driving at 12:00pm

- At 5pm the driver takes a 1 hour break

- At 6pm the driver begins driving again

- At 11:30pm, the driver shuts down and goes off duty for 10 consecutive hours

  • No, the driver did not satisfy the 30 minute break requirement
  • No, the driver exceeded his legal drive time by 30 minutes
  • Yes, the example is legal
  • No, the driver exceeded his 14 hour on duty time
This is a question from page 93 - click here to look up the answer

Quote From Page 0 Of The Illinois CDL Manual:

During the 14 consecutive hour on duty period, you are only allowed to drive your truck for up to 11 total hours. Once you have driven a total of 11 hours, you have reached the driving limit and must be off duty for another 10 consecutive hours before driving your truck again.

There are times when you will be required to take a 30 minute break. If you have been on duty for more than 8 consecutive hours without at least 30 minutes off duty, you are not allowed to operate a CMV until a 30 minute break is taken. You may perform on duty tasks but you cannot drive.

TruckingTruth's Advice:

Let's go through the example together:

Beginning the day:

In this hypothetical situation, a driver begins his day at 12pm. At that point, both his 14 hour on duty clock and 11 hour driving clock have started.

Taking a break

When the driver takes his 1 hour break, his 11hr clock stops. At this point, since he is no longer driving, only his 14 hour clock continues to run. This break also satisfies the 30 minute break provision. So far, here's how his time looks:

  • 14 hour clock: 9 hours remaining (will be 8 hours remaining once his break is complete).
  • 11 hour clock: 6 hours remaining (will remain 6 hours throughout his entire break).
Resume driving:

So, after the driver takes his 1 hour break, he still has 9 hours on his 14 hour on duty clock and 6 hours on his 11 hour driving clock remaining. Since he took 1 hour off duty, he now has 8 more consecutive hours that he can drive without taking a 30 minute break off duty.

Shutting down:

It has now been 5.5 hours since the driver took his break. So let's look at our remaining hours again.

  • 14 hour clock: The driver had 8 hours remaining once he started driving again after his break and 5.5 hours have passed since then. The driver still has 2.5 hours remaining on his 14 hour on duty limit.
  • 11 hour clock: The driver had 6 hours remaining after his break. He has driven an additional 5.5 hours since then. That means the driver still has 30 minutes remaining on his 11 hour driving clock.

So yes, this driver is indeed legal! And once he takes 10 consecutive hours off, he can do it all over again.

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