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1000+CEU Questions
7Exam Domains
10Free Questions
2026Updated
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Everything your CEU certification prep needs

Practice expert-vetted questions, find your weak domains, and turn every mistake into a focused review plan.

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Every question is reviewed by an experienced CEU professional for clarity, accuracy and practical exam relevance.

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Domain analytics show which parts of the exam blueprint are holding you back.

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Missed questions become a review list, so nervous guessing turns into focused repetition.

1,000+ exam-realistic questions
All 7 CEU domains
Weighted to the exam blueprint
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Updated for the 2026 exam
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Study by domain

Practice the CEU exam by domain

1. Q511 - General Subjects I. Topics: General Subjects; Prints and tables; Hydraulics; Bilge systems; Oily water separators; Sanitary-Sewage Systems; Freshwater systems; Lubrication systems; Automation systems; Control systems; Propellers-Shafting; Distilling systems; Administration; Bearings; Governors; Cooling systems; Steering systems; Deck machinery; Ventilation systems.

Key exam domain

Identify weak areas and improve with focused review.

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2. Q512 - General Subjects II. Topics: Refrigeration-Air Conditioning; Air conditioning systems; Refrigeration systems; Control systems; Safety; Casualty control; Management Level; Management skills; Crisis management; Shipyard; Inspections-surveys; Vessel layup; Employee familiarization; Operational planning; Assessing competency; Management practices; Arbitration; Internal documents; International laws-Conv.; Technical analysis; Maintenance systems; Troubleshooting; Codes & regulations.

Key exam domain

Identify weak areas and improve with focused review.

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3. Q513 - Steam Plants. Topics: Steam Generators; Main boilers; Feedwater systems; Condensate systems; Recovery systems; Fuel; Main fuel systems; Boiler water chemistry; Control systems; Automation systems; Steam Engines; Main turbines; Auxiliary turbines; Governor systems; Control systems; Automation systems; Lubrication systems; Drive systems; Auxiliary diesels; Safety; Casualty control.

Key exam domain

Identify weak areas and improve with focused review.

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4. Q514 - Motor Plants. Topics: Motor Propulsion; Main engines; Auxiliary engines; Starting systems; Lubrication systems; Fuel; Fuel systems; Fuel injection systems; Air-charging systems; Control systems; Automation systems; Governors; Steam Generators; Auxiliary boilers; Water chemistry; Safety; Casualty control.

Key exam domain

Identify weak areas and improve with focused review.

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5. Q515 - Gas Turbine Plants. Topics: Gas Turbines; Thermo; Operating parameters; Start systems; Lubrication systems; Fuel systems; Drive systems; Instrumentation-Controls; Maintenance; Inspection; Troubleshooting; Casualty control; Steam Generators; Auxiliary boilers; Feedwater systems; Condensate systems; Recovery systems.

Key exam domain

Identify weak areas and improve with focused review.

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6. Q516 - Engineering Safety & Environmental Protection. Topics: Safety; Fire theory; Fire prevention; Fire fighting; Flooding; Dewatering; Stability and trim; Damage control; Emergency Equipment-Lifesaving Appliances; General safety; Hazardous materials; Pollution prevention; U.S. rules & regulations; Environmental protection.

Key exam domain

Identify weak areas and improve with focused review.

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7. Q517 - Electrical, Electronic, & Control Engineering. Topics: Electricity-Electronics-Control Engineering; Motor controllers; Propulsion systems; Distribution systems; Electronic systems; Safety; Casualty control; Troubleshooting; High voltage systems; Computers-Networks; Bridge navigation equipment.

Key exam domain

Identify weak areas and improve with focused review.

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Built for practice, not passive reading Active recall and repetition build real exam-day readiness.
Written to match the real exam Every question mirrors the style, difficulty, and phrasing of the actual CEU exam.
Aligned to the CEU blueprint Weighted across every exam domain, so you practice exactly what's tested.
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Frequently asked questions

Straight answers about the CEU exam, the questions, pricing, the free trial, and how this fits your prep.

The CEU exam spans 7 domains - Q511 - General Subjects I. Topics: General Subjects; Prints and tables; Hydraulics; Bilge systems; Oily water separators; Sanitary-Sewage Systems; Freshwater systems; Lubrication systems; Automation systems; Control systems; Propellers-Shafting; Distilling systems; Administration; Bearings; Governors; Cooling systems; Steering systems; Deck machinery; Ventilation systems., Q512 - General Subjects II. Topics: Refrigeration-Air Conditioning; Air conditioning systems; Refrigeration systems; Control systems; Safety; Casualty control; Management Level; Management skills; Crisis management; Shipyard; Inspections-surveys; Vessel layup; Employee familiarization; Operational planning; Assessing competency; Management practices; Arbitration; Internal documents; International laws-Conv.; Technical analysis; Maintenance systems; Troubleshooting; Codes & regulations., Q513 - Steam Plants. Topics: Steam Generators; Main boilers; Feedwater systems; Condensate systems; Recovery systems; Fuel; Main fuel systems; Boiler water chemistry; Control systems; Automation systems; Steam Engines; Main turbines; Auxiliary turbines; Governor systems; Control systems; Automation systems; Lubrication systems; Drive systems; Auxiliary diesels; Safety; Casualty control., Q514 - Motor Plants. Topics: Motor Propulsion; Main engines; Auxiliary engines; Starting systems; Lubrication systems; Fuel; Fuel systems; Fuel injection systems; Air-charging systems; Control systems; Automation systems; Governors; Steam Generators; Auxiliary boilers; Water chemistry; Safety; Casualty control., Q515 - Gas Turbine Plants. Topics: Gas Turbines; Thermo; Operating parameters; Start systems; Lubrication systems; Fuel systems; Drive systems; Instrumentation-Controls; Maintenance; Inspection; Troubleshooting; Casualty control; Steam Generators; Auxiliary boilers; Feedwater systems; Condensate systems; Recovery systems., Q516 - Engineering Safety & Environmental Protection. Topics: Safety; Fire theory; Fire prevention; Fire fighting; Flooding; Dewatering; Stability and trim; Damage control; Emergency Equipment-Lifesaving Appliances; General safety; Hazardous materials; Pollution prevention; U.S. rules & regulations; Environmental protection., and Q517 - Electrical, Electronic, & Control Engineering. Topics: Electricity-Electronics-Control Engineering; Motor controllers; Propulsion systems; Distribution systems; Electronic systems; Safety; Casualty control; Troubleshooting; High voltage systems; Computers-Networks; Bridge navigation equipment.. Every practice question maps to one of them, so you train on exactly what's tested.

No - and that matters. These are original practice questions written to mirror the style, difficulty, and domain coverage of the CEU exam blueprint. We never distribute actual exam content, so practicing here keeps you fully compliant with official exam policies.

No. CEU Exam Prep is an independent study resource for Chief Engineer (Unlimited) (CEU). It is not affiliated with, sponsored by, or endorsed by the official certifying body or exam administrator.

What candidates say

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Real feedback from CEU candidates on Reddit.

★★★★★
Sourced from Reddit

"put this off for months then had like three weeks before my exam date. the Q513 steam plant questions saved me, i hadnt touched a boiler since cadet days. grinded practice sets every night and somehow passed first try."

r/merchantmarine Posted on Reddit
★★★★★
Sourced from Reddit

"wasnt sure the online stuff would actually match what NMC asks but it was close enough to not matter. the mistake review feature is what did it for me, kept missing the same governor questions until i actually understood why instead of just memorizing answers."

r/USCG Posted on Reddit
★★★★★
Sourced from Reddit

"ceuexam.com got me thru the management level stuff, especially the crisis management and casualty control questions which i was definately weak on. did the mock exams on repeat for like a month. relief more than anything when the results came back."

r/merchantmarine Posted on Reddit

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