Hours of Service / ELD

First published: September 2, 2026Last verified: September 2, 2026Reviewed by the CertQuestUSA team

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 citing the real regulation it comes from.

Where these questions come from

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

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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

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

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

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

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

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

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 diagnostic for Hours of Service / ELD?

Yes -- 10 real questions across the exam's domains, no sign-up required, with a domain-by-domain breakdown at the end.

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