Examination Practice Questions And

Coast Guard Tankerman–Engineer Examination Practice Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• What is the primary purpose of a tankerman–engineer on a vessel?
• To navigate the vessel safely
• To maintain and operate the vessel’s propulsion machinery
• To manage cargo loading operations
• To oversee the galley operations
• To maintain and operate the vessel’s propulsion machinery

Rationale: The tankerman–engineer is responsible for operating and

maintaining the vessel’s engine and auxiliary machinery to ensure safe and efficient propulsion. 1 / 4

• Which type of fuel is most commonly used on small commercial

vessels with diesel engines?

• Gasoline
• Marine diesel oil
• Heavy fuel oil
• Natural gas
• Marine diesel oil

Rationale: Marine diesel oil (MDO) is widely used because it is

compatible with diesel engines and provides efficient combustion.

• Before starting an engine, what is the most critical check a

tankerman–engineer should perform?

• Engine paint condition
• Fuel level and oil levels
• Lifeboat drills
• Galley supplies
• Fuel level and oil levels

Rationale: Ensuring adequate fuel and lubricating oil levels prevents

engine damage during start-up.

• What does the acronym “PPE” stand for in marine engineering

operations?

• Primary Propulsion Equipment
• Personal Protective Equipment
• Pressure Pump Efficiency 2 / 4

• Propeller Performance Evaluation
• Personal Protective Equipment

Rationale: PPE refers to protective clothing and equipment worn to

minimize exposure to hazards in the workplace.

• Which system on a vessel is responsible for removing heat from the

engine?

• Steering system
• Cooling system
• Electrical system
• Fuel system
• Cooling system

Rationale: The cooling system circulates water or coolant to prevent

the engine from overheating.

• What is the primary purpose of a bilge pump on a vessel?
• To pump fuel to the engine
• To remove water that collects in the bilge
• To circulate cooling water
• To inflate life rafts
• To remove water that collects in the bilge

Rationale: Bilge pumps remove accumulated water to prevent

flooding and maintain vessel stability.

• When conducting engine room inspections, which of the following is

most important to check? 3 / 4

• Paint color of machinery
• Fuel lines, oil leaks, and belts
• Lifeboat deployment mechanisms
• Galley cleanliness
• Fuel lines, oil leaks, and belts

Rationale: Checking for leaks and worn components ensures engine

reliability and safety.

• Which type of maintenance schedule is based on actual equipment

condition rather than fixed intervals?

• Preventive maintenance
• Corrective maintenance
• Predictive maintenance
• Emergency maintenance
• Predictive maintenance

Rationale: Predictive maintenance uses condition monitoring and

diagnostics to perform maintenance only when needed.

• What is the purpose of a main engine’s lubrication system?
• To supply fuel efficiently
• To reduce friction and wear of moving parts
• To cool the engine
• To generate electricity
• To reduce friction and wear of moving parts
• / 4