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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 violation has occurred on the below log?

  • There is a 14 hour rule violation
  • There is no violation on this log
  • There is an 11 hour rule violation
  • There is a 30 minute break violation
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 are no violations in this example.

Explanation - 11 Hour Limit: After 10 consecutive hours off duty, the driver had 11 hours of drive time available starting at 1:00 a.m. The driver drove between the hours of 1:00 a.m. and 6:00 a.m. (5 hours), then again between the hours of 7:00 a.m to 10:00 a.m. (3 hours) and finally between the hours of noon to 2:00 p.m (2 hours). Since the driver was allwed a total of 11 hours of drive time but only drove 10 hours (5 + 3 + 2), no violation occurred.

Explanation - 30 Minute Break: After 10 consecutive hours off duty, the driver went on duty at midnight. At that point, the driver could perform driving duties until 8:00 a.m. before a 30 minute break off duty would be required to continue any driving tasks. After driving for 5 hours (on duty for a total of 6 hours) the driver fulfilled the break requirement by spending 1 hour off duty between the hours of 6:00 a.m. and 7:00 a.m. Starting at 7:00 a.m. the driver was allowed to continue driving for the remainder of his/her available 11 and 14 hour limits.

Explanation - 14 Hour Limit: After 10 consecutive hours off duty, the driver had 14 hours available beginning at Midnight. At 2:00 p.m., the driver had reached the end of the 14 hour window (10 hours driving; 3 hours on duty; 1 hour off duty). The driver may not drive a CMV once he or she has reached the end of the 14 consecutive-hour period and in this example, the driver goes off duty for the required 10 consecutive hours starting at 2:00 p.m.

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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 a 14 hour rule violation only
  • There is an 11 hour violation as well as a 30 minute break violation
  • There is an 11 hour rule violation as well as a 14 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:

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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What does EOBR stand for?
  • Electric Orientation and Break Recorder
  • Electronic On-Board Recorder
  • Electronic Occurrence and Break Recorder
  • Enforcement of Break Rules
This is a question from page 106 - click here to look up the answer

Quote From Page 0 Of The Illinois CDL Manual:

Many motor carriers have installed electronic devices in their trucks to help accurately record hours of service information. If such a device meets the requirements of the safety regulations, it is called an Electronic On-Board Recorder (EOBR), and may be used in place of a paper logbook.

TruckingTruth's Advice:

EOBRs are slowly becoming the industry standard. If you are hired on with any large carrier, chances are very high that you will be using an EOBR. Many small companies still use paper logbooks, but EOBRs will soon take over.

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Which statement is true about extending the 14 hour on duty clock by using the 8 hour sleeper berth provision?
  • You must spend all 8 hours consecutively in the sleeper berth
  • None of these answers are correct
  • The 8 hours can be split between sleeper berth time and off duty time as long as those hours are consecutive
  • You can section the 8 hour break into two 4 hour segments
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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How current must your logbook be?
  • It must show your last duty change
  • Your current day log must be filled out within' 48 hours
  • Logs must be filled out at the end of each driving day
  • You must show what time you went on duty, then the rest of the log can be filled out when you go off duty for the day
This is a question from page 96 - click here to look up the answer

Quote From Page 0 Of The Illinois CDL Manual:

The current days log must be current to your last change of duty status.

TruckingTruth's Advice:

Quite a few truck drivers are written citations or are placed out of service because their logbooks aren't current. These citations are the result of laziness. You must be current to your last duty status change. So if you are randomly stopped by a police officer and your logbook is checked, it should when you last changed into the driving status.

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What violations occurred on Day 2 of this example?

Day 1

Day 2


  • There is a 14 and 11 hour rule violation
  • There is a 14 and 11 hour rule violation as well as a 30 minute break violation
  • There is a 14 hour rule violation and a 30 minute break violation
  • There is an 11 hour rule violation and a 30 minute break 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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When you change your duty status, you must document all of the following except:
  • The state you are in
  • All of these must be documented
  • The city or town you are in
  • The county you are in
This is a question from page 97 - click here to look up the answer

Quote From Page 0 Of The Illinois CDL Manual:

Remarks: This is the area where you must list the city, town, or village, and state abbreviation when a change of duty status occurs. You should also explain any unusual circum­stances or log entries that may be unclear when reviewed later, such as encountering adverse driving conditions.

TruckingTruth's Advice:

Law enforcement officers will check all of your paperwork, including receipts or toll records, to make sure your logs are showing the correct locations at the correct times.

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

  • No violation occurs at 2:00 p.m.
  • 30 minute break violation
  • 11 hour rule violation
  • 14 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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[2,4,2,1,1,2,4,4]
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