Free Hours of Service Practice Test Online

Official exam: Hours of Service / ELD

Take a free Hours of Service practice test online: a full 50-question paper with every answer explained, no sign-up, scored by topic. The full 112-question bank and the timed simulator are $14.99 for 30 days.

First published: September 2, 2026Bank updated: September 2, 2026Published by CertQuestUSA · review process

TL;DR

Hours of Service / ELD: a 112-question practice bank for the real DOT / FMCSA Carrier Compliance standard, 2 full papers of 50 questions each with no repeats, every question written to the regulation it comes from.

Where these questions come from

Every question in this bank cites a source -- primarily 49 CFR (100%) of this exam's citations.

Take a full practice test free. 50 real questions built to the exam's domain weights, every answer explained, no sign-up required, with a domain-by-domain score at the end.

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2

full papers, no repeats

50

questions per paper

112

questions in the bank

What this exam covers

Driving-Time Limits (11-Hour / 14-Hour / 30-Minute Break)13%
The ELD Mandate (Devices, Malfunctions, Exemptions)45%
Exceptions (Adverse Conditions, Short-Haul, Agricultural)16%
On-Duty Limits & 34-Hour Restart13%
Sleeper Berth Provisions13%

5 real sample questions

Within how many hours must a driver provide written notice to the motor carrier of an ELD malfunction?

A. 24 hours

B. 8 hours

C. 48 hours

D. 72 hours

Show answer and reasoning

Correct answer: A. 24 hours

B: 8 hours is shorter than the notice window the regulation requires.
C: 48 hours is longer than the notice window the regulation requires.
D: 72 hours is longer than the notice window the regulation requires.

Source: 49 CFR 395.34

How many consecutive hours off duty must a property-carrying driver take before driving again?

A. 10 consecutive hours

B. 8 consecutive hours

C. 12 consecutive hours

D. 6 consecutive hours

Show answer and reasoning

Correct answer: A. 10 consecutive hours

B: 8 hours is not the off-duty threshold under 395.3(a)(1).
C: 12 hours is not required; 10 is the figure the regulation states.
D: 6 hours is not required; 10 is the figure the regulation states.

Source: 49 CFR 395.3(a)(1)

A driver comes on duty after 10 hours off. How many consecutive hours does the driver have to drive before the on-duty window closes?

A. 14 consecutive hours

B. 11 consecutive hours

C. 16 consecutive hours

D. 12 consecutive hours

Show answer and reasoning

Correct answer: A. 14 consecutive hours

B: 11 hours is the driving-time limit inside the window, not the window itself.
C: 16 hours applies only under the limited short-haul exception in 395.1(o), not as the general rule.
D: 12 hours is not the figure stated in 395.3(a)(2).

Source: 49 CFR 395.3(a)(2)

What is the maximum number of hours a property-carrying driver may drive within the 14-hour window?

A. 11 hours

B. 14 hours

C. 10 hours

D. 12 hours

Show answer and reasoning

Correct answer: A. 11 hours

B: 14 hours is the on-duty window, not the driving-time cap.
C: 10 hours is the required off-duty period, not the driving limit.
D: 12 hours is not the figure stated in 395.3(a)(3)(i).

Source: 49 CFR 395.3(a)(3)(i)

After how many cumulative hours of driving must a driver take a 30-minute break before continuing to drive?

A. 8 cumulative hours

B. 6 cumulative hours

C. 10 cumulative hours

D. 4 cumulative hours

Show answer and reasoning

Correct answer: A. 8 cumulative hours

B: 6 hours is not the trigger point stated in 395.3(a)(3)(ii).
C: 10 hours is not the trigger point; it would allow driving too long without a break.
D: 4 hours is not the trigger point stated in the regulation.

Source: 49 CFR 395.3(a)(3)(ii)

Real-world data for this exam

Heavy and Tractor-Trailer Truck Drivers: real median wageMay 2025$58,640/yr Hours-of-Service Compliancesince 2023-01-01443,495 violations Part of the real CDL Driver career pathExplore ›

Frequently asked questions

Where can I take a free Hours of Service practice test online?

Right here. CertQuestUSA's free Hours of Service practice test online is a full 50-question practice paper built to the real exam's domain weights, with every answer explained, with no sign-up and no credit card, and shows your score by topic at the end. The full 112-question bank, with every answer explained and cited to the regulation it comes from, is $14.99 for a 30-day pass that never renews.

How many questions are on the CertQuestUSA Hours of Service / ELD practice test?

112 questions total, split into 2 full papers of 50 each with no repeats across papers.

What topics does the Hours of Service / ELD test cover?

5 domains, with the heaviest weight on The ELD Mandate (Devices, Malfunctions, Exemptions) (45%), Exceptions (Adverse Conditions, Short-Haul, Agricultural) (16%), and Driving-Time Limits (11-Hour / 14-Hour / 30-Minute Break) (13%).

Where do CertQuestUSA's Hours of Service / ELD questions come from?

Primarily 49 CFR (100%) of this bank's citations -- computed directly from this exam's own question sources, not a generic description.

Is there a free Hours of Service / ELD practice test?

Yes -- one full 50-question practice paper built to the exam's domain weights, free with no sign-up, with every answer explained and a domain-by-domain score at the end.

Need the certificate itself, not just the practice?

This page is a practice test. Certified Training USA, our sister site, sells the Hours of Service & ELD Training course with a certificate of completion.

See the course

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