SAMSA Second Engineer CoC Practice Questions - South African Maritime Safety Authority STCW Section A-III 2 Second Engineer Officer Certificate of Competency Exam - SAMSA Second Engineer CoC Practice Questions - South African Maritime Safety Authority STCW Section A-III 2 Second Engineer Officer Certificate of Competency Exam

Question 1

A 6-cylinder 2-stroke marine diesel engine has a cylinder bore of 0.70 m, stroke of 2.4 m, and runs at 100 rpm. If the mean indicated pressure (MIP) is 1.8 MPa, what is the total indicated power developed by the engine?

16,625 kW 8,312 kW 33,250 kW 12,468 kW

Correct Answer:

16,625 kW

Question 2

What is the primary function of Variable Injection Timing (VIT) in modern marine 2-stroke engine fuel pumps?

To retard fuel injection timing at full load to prevent high exhaust gas temperatures To advance fuel injection timing at partial load to maintain maximum combustion pressure (Pmax) near its rated value To decrease fuel pump plunger stroke at idling speeds To vary the fuel oil viscosity before entering the fuel injector

Correct Answer:

To advance fuel injection timing at partial load to maintain maximum combustion pressure (Pmax) near its rated value

Question 3

Upon detecting a scavenge trunk fire on a 2-stroke main engine, what immediate action should be taken by the engineer officer on watch?

Immediately open scavenge inspection doors to inspect the extent of the fire Speed up the engine to blow out the accumulation of unburnt oil Slow down the engine, stop fuel to affected cylinder, engage turning gear cooling, and apply fixed extinguishing medium if fire persists Increase cylinder lubrication oil feed rate to the maximum on all cylinders

Correct Answer:

Slow down the engine, stop fuel to affected cylinder, engage turning gear cooling, and apply fixed extinguishing medium if fire persists

Question 4

When analyzing a main engine draw card (out-of-phase indicator diagram), what does a abnormally high peak firing pressure (Pmax) accompanied by heavy diesel knock indicate?

Engine compression pressure (Pcomp) is too low Fuel injection timing is excessively retarded Fuel injector nozzles are severely choked Fuel injection timing is excessively advanced

Correct Answer:

Fuel injection timing is excessively advanced

Question 5

Following a crankcase oil mist alarm and main engine shutdown, how long must the engine room staff wait before opening crankcase doors?

At least 20 minutes to allow hot spots to cool below the oil vapor ignition temperature Immediately, to locate and extinguish the hot spot before damage occurs Exactly 5 minutes after stopping the fuel supply No waiting period is needed if forced crankcase extraction fans are running

Correct Answer:

At least 20 minutes to allow hot spots to cool below the oil vapor ignition temperature

Exam overview

About this Exam

Prepare with the SAMSA Second Engineer CoC Practice Questions - South African Maritime Safety Authority STCW Section A-III 2 Second Engineer Officer Certificate of Competency Exam practice quiz. This question bank includes 100 questions covering engine, main, marine, fuel, and water. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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SAMSA Second Engineer CoC Practice Questions - South African Maritime Safety Authority STCW Section A-III 2 Second Engineer Officer Certificate of Competency Exam

This practice set contains 100 questions from the matching question bank and focuses on engine, main, marine, fuel, and water. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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SAMSA Second Engineer CoC Practice Questions - South African Maritime Safety Authority STCW Section A-III 2 Second Engineer Officer Certificate of Competency Exam

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