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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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What is a 34 hour restart?
  • The regulations allow you to "restart" your 60 or 70 hour clock calculations after having at least 34 consecutive hours off duty
  • If you take at least two 17 hour breaks within an 8 day period, all your hours will reset
  • After you have been on duty for 34 hours, you must take a 70 hour break
  • If you drive less than 34 hours in 7 days, all your hours will reset
This is a question from page 93 - click here to look up the answer

Quote From Page 0 Of The Illinois CDL Manual:

The 34 Hour Restart

The regulations allow you to "restart" your 60 or 70 hour clock calculations after having at least 34 consecutive hours off duty. In other words, after you have taken at least 34 hours off duty in a row, you have the full 60 or 70 hours available again. You would then begin counting hours on the day of the restart and not go back the full 7 or 8 days.

TruckingTruth's Advice:

If you are planning to become an OTR truck driver, you will use the 8 day / 70 hour limit. That means, you are unable to drive once you've been on duty for more than 70 hours within an 8 day period. If you've worked close to that limit, you may want to "reset" the 70 hour limit. The only way to completely reset your 70 hour limit is to take an extended amount of time off duty. If you take 34 consecutive hours off without driving or performing on duty tasks, your 70 hour limit will reset.

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What happens if you spend 8 hours in the sleeper berth?
  • 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
  • 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
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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Which statement below is true?
  • An EOBR may be used without creating any paper copies
  • EOBRs must be capable of printing a log sheet
  • EOBRs are declining in usage
  • EOBRs must store at least the previous 3 days of log information
This is a question from page 106 - click here to look up the answer

Quote From Page 0 Of The Illinois CDL Manual:

The EOBR device must be capable of displaying or printing for enforcement officers the times of duty status changes and other required information. It must also store this information for the prior 7 days. An EOBR may be used without creating any paper copies of logs by transmitting the data electronically to the carrier, or it may be used to print copies of the logs that would be signed by the driver and mailed to the carrier.

What Is The Future Of EOBRs

Even 5 years ago, the vast majority of major trucking carriers relied on paper logs. But the DOT and FMCSA have begun a historic crackdown on enforcing and regulating, among other things, HOS rules. Violations now effect both the drivers record as well as the carriers safety rating. We are at a turning point where it now makes financial sense for trucking companies to switch over from using paper logs to EOBRs. These electronic recording devices are here to stay and will only grow in usage as time goes on. In fact, on January 31, 2011, the FMCSA proposed a rule that would require Electronic On-Board Recorders for interstate commercial truck and bus companies.

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What violation occurs at 2:00 p.m. on this example?

  • No violation occurs at 2:00 p.m.
  • 14 hour rule violation
  • 30 minute break violation
  • 11 hour rule violation
This is a question from page 99 - 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 2:00 p.m. - 3:00 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 midnight. The driver reached the 11 hour limit at 3:00 p.m., at which point he or she entered the sleeper berth for 8 consecutive hours. The 8 hour sleeper berth period, combined with the earlier 2 hour off duty period (in this case, a combination of sleeper berth and off duty time beginning at 9:00 a.m.), made the driver eligible for the split sleeper berth provision. That is, the driver accumulated at least 10 hours of rest using a combination of at least 8 (but less than 10) consecutive hours in a sleeper berth and another break of at least 2 (but less than 10) consecutive hours either off duty and/or in a sleeper berth. This moves the 11 hour calculation point to the end of the first of the two qualifying breaks, or 11:00 a.m. After 11:00 a.m., the driver accumulated 4 hours of driving time, leaving 7 hours to be used after 11:00 p.m.

Explanation - 30 Minute Break: Since the driver was never on duty beyond an 8 consecutive hour period without at least 30 minutes taken off duty, there are no violations of the 30 minute break provision in this example.

Explanation - 14 Hour Limit: After 10 consecutive hours off duty, the driver had 14 hours available beginning at midnight. The 14 hour limit was reached at 2:00 p.m., but the driver continued to drive, resulting in a 1 hour violation from 2:00 p.m. to 3:00 p.m. The driver then went into the sleeper berth for 8 consecutive hours, which enabled him or her to take advantage of the split sleeper berth provision. This moves the 14 hour calculation point to 11:00 a.m. Counting forward from there (and excluding the 8 hour sleeper berth period), the driver had 10 hours remaining at 11:00 p.m. and had no further violations. The fact that the driver returned to compliance after 11:00 p.m. does not remove the violation from 2:00 p.m. - 3:00 p.m. The driver should have taken the break at 2:00 p.m. to avoid the violation.

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HOS regulations were designed to do all of the following except:
  • To ensure drivers wouldn't push themselves too far
  • To regulate the maximum amount of time drivers can spend resting between driving shifts
  • To require drivers to keep an updated log showing all of their working and resting hours
  • So that carriers can't force drivers to drive beyond their limits
This is a question from page 92 - click here to look up the answer

Quote From Page 0 Of The Illinois CDL Manual:

What Are Hours Of Service Regulations?

HOS regulations are rules issued by the Federal Motor Carrier Safety Administration (FMCSA) which is a division within the Department of Transportation (DOT). The regulations limit the number of daily and weekly hours which can be spent driving and working. They also regulate the minimum amount of time drivers must spend resting between driving shifts. Drivers are required to keep an updated log showing all of their working and resting hours.

Why Do HOS Regulations Exist?

The purpose of HOS regulations is to reduce accidents caused by driver fatigue. Many drivers don't like being told when they can and can't drive, but as you can see in Figure 13-1 below, the risk of an accident is directly related to how many hours a driver has been behind the wheel. HOS regulations were designed so that drivers wouldn't push themselves too far and also so that carriers can't force drivers to drive beyond their limits.

Figure 13-1

TruckingTruth's Advice:

The required resting periods are minimum requirements, not maximum requirements. The same can be said about working hours. Bottom line, if you're too tired to drive, don't drive!

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Which of these could be considered off duty time?
  • Fueling your truck
  • Washing your truck
  • Completing paperwork required by your carrier
  • Taking a 2 hour nap at a rest area
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.

TruckingTruth's Advice:

Once you start your day, you have 14 hours to complete it until you're not allowed to drive anymore. While you may go off duty during that 14 hour period, it will not change the time at which the 14 hour on duty limit will expire.

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What violations occurred on Day 2 of this example?

Day 1

Day 2


  • 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 is a 14 and 11 hour rule violation as well as a 30 minute break violation
  • There is a 14 and 11 hour rule violation
This is a question from page 102 - click here to look up the answer

Quote From Page 0 Of The Illinois CDL Manual:

Day 1

Day 2

Violations: There are a total of 3 violations on Day 2. First, there is a 14 hour rule violation from 1:00 a.m. - 2:00 a.m. Second, there is a 30 minute break violation from 8:00 p.m - midnight. And third, there is also an 11 hour rule violation from 11:00 p.m. - midnight.

Explanation - 11 Hour Limit: After 10 consecutive hours off duty using a combination of off duty and sleeper berth time, the driver was eligible to drive for up to 11 hours starting at 10:00 a.m. on Day 1. By 2:00 a.m. on Day 2, the driver had driven 9 hours. By obtaining 10 consecutive hours off duty on Day 2, the 11 hour calculation point moved to noon on Day 2, at which point the driver had 11 hours of driving time available again. The driver violated the 11 hour rule by driving beyond the 11 hour limit between 11:00 p.m. and Midnight.

Explanation - 30 Minute Break: On Day 1, the driver was never required to take a 30 minute break because the longest stretch of on duty time during the entire day was only 6 consecutive hours. On day 2, the driver never took a minimum of 30 consecutive minutes off duty, even after remaining in the driver's seat for more than 8-hours. At 8:00 p.m. the driver was in violation of the 30 minute break provision and remained in violation for the remainder of the day.

Explanation - 14 Hour Limit: After 10 consecutive hours off duty, the driver had 14 hours available at 10:00 a.m. on Day 1. The driver reached the 14 hour limit at midnight (the 5-hour sleeper-berth period is included in the 14 hour calculation because it was less than 8 hours). Though the driver was not eligible to drive a CMV after midnight, he or she was able to continue working on duty without violation, as long as no driving took place (which was done for 1 hour). The driver violated the 14 hour rule by driving a CMV at 1:00 a.m. Then, after 10 consecutive hours off duty, the 14 hour calculation point moved to noon on Day 2, at which point the driver had 14 hours available to work again.

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The 14 hour limit can be extended by:
  • Spending 8 consecutive hours either in a sleeper berth or off duty
  • Spending 8 consecutive hours off duty
  • None of these answers are correct
  • Spending 8 consecutive hours in a 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:

2. 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:

Remember, in order to extend the 14 hour limit, all 8 hours must be logged as sleeper berth time. You can't spend the 8 hours off duty or switch back and forth between sleeper berth and off duty time.

In most cases, it makes more sense to simply stay in the sleeper berth for 2 more hours (total of 10 consecutive hours in the sleeper berth). That way, instead of extending the 14 hour limit, you create an entirely new starting point for the 14 hour limit and will have all 14 hours available again.

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[1,4,1,2,2,4,3,4]
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