Fishing Industry Vessels Examination

Coast Guard Chief Engineer (Uninspected Fishing Industry Vessels) Examination Practice Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• What is the primary responsibility of a Chief Engineer on an uninspected

fishing industry vessel?

• Ensure the vessel’s catch quality
• Supervise deck crew operations
• Maintain propulsion and machinery systems
• Ensure the safe operation, maintenance, and repair of all engineering

equipment

Rationale: The Chief Engineer is responsible for the safe and effective

operation of all vessel engineering systems.

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• Which document must be maintained to track all maintenance actions

performed on the propulsion plant?

• Navigation log
• Engineering logbook
• Bridge movement record
• Crew watch bill

Rationale: Engineering logs record maintenance, malfunctions, and

engineering activities.

3. Diesel engine crankcase explosions are most commonly caused by:

• Incorrect lube oil viscosity
• Coolant depletion
• Oil mist ignition
• Fuel overpressure

Rationale: Oil mist combined with hot spots often leads to crankcase

explosions.

• Which of the following is a sign of fuel injector malfunction?
• Low crankcase pressure
• High lube oil temperature
• Black exhaust smoke
• Excessive cooling water flow 2 / 4

Rationale: Black smoke indicates incomplete combustion caused by

injector or fuel delivery issues.

• Which component regulates fuel delivery pressure in a diesel engine

system?

• Turbocharger
• Governor
• Fuel injection pump
• Scavenging blower

Rationale: The injection pump controls timing and pressure of fuel delivery.

• What is the purpose of a governor on a diesel engine?
• Control exhaust temperature
• Regulate lube oil flow
• Maintain constant engine speed
• Adjust cooling water flow

Rationale: The governor keeps the engine running at a steady speed

despite load changes.

• Which type of pump is commonly used for lube oil systems? 3 / 4

• Diaphragm pump
• Gear pump
• Centrifugal pump
• Reciprocating pump

Rationale: Gear pumps provide steady, high-pressure flow ideal for lube oil

systems.

8. Excessive exhaust temperature differences between cylinders indicate:

• Proper fuel balancing
• Uneven cylinder loading or faulty injectors
• Increased turbocharger efficiency
• Low lube oil pressure

Rationale: Differences often result from unbalanced fuel injection or

uneven cylinder performance.

• What is the primary purpose of a heat exchanger in the cooling system?
• Increase fuel temperature
• Transfer heat between fluids without mixing
• Reduce engine vibration
• Maintain crankcase pressure

Rationale: Heat exchangers cool engine systems by exchanging heat

between fluids.

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