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BD Marine Engineer Class 2 (Second Engineer) Practice Questions - Bangladesh DoS Marine Engineer Officer Class 2 (Second Engineer) Certificate of Competency Exam

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About this Exam

Prepare with the BD Marine Engineer Class 2 (Second Engineer) Practice Questions - Bangladesh DoS Marine Engineer Officer Class 2 (Second Engineer) Certificate of Competency Exam practice quiz. This question bank includes 100 questions covering engine, diesel, main, fitted, and generator. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

Sample Questions

Question 1
What is the primary purpose of scavenging in a two-stroke marine diesel engine?
To expel burnt exhaust gases from the cylinder and replace them with fresh air before the next compression stroke
To cool the piston crown using lubricating oil
To atomize the fuel before injection
To control the engine's rotational direction
Question 2
In a trunk-piston type diesel engine, such as those commonly used to drive auxiliary generators, which component directly absorbs the piston's side thrust?
The camshaft bearings
A separate crosshead and guide shoe
The piston skirt bearing against the cylinder liner wall
The flywheel
Question 3
What is turbocharger surging and why is it a dangerous condition?
A normal, beneficial vibration that occurs at full load and improves scavenge air delivery
An unstable, pulsating reverse flow through the compressor when air demand is too low for the pressure the compressor is trying to develop, causing vibration and potential mechanical damage
A condition caused only by excess fuel injection that has no effect on the turbocharger itself
A deliberate operating mode used during maneuvering to increase engine response
Question 4
What is the function of the delivery valve in a jerk-type fuel injection pump?
It meters the total quantity of fuel delivered per injection stroke
It maintains a residual pressure in the high-pressure fuel line after injection ends, ensuring rapid closure of the injector needle valve and preventing dribbling or secondary injection
It atomizes the fuel as it leaves the injector nozzle
It sets the exact start-of-injection timing independent of the pump plunger
Question 5
What is the purpose of the turning (barring) gear fitted to a main propulsion diesel engine?
To increase engine speed during maneuvering
To rotate the engine slowly by electric motor or by hand for maintenance and inspection, with a safety interlock that prevents starting air admission while it is engaged
To reverse the direction of rotation while running at sea
To test the governor's response under full engine load

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Additional Information

BD Marine Engineer Class 2 (Second Engineer) Practice Questions - Bangladesh DoS Marine Engineer Officer Class 2 (Second Engineer) Certificate of Competency Exam

This practice set contains 100 questions from the matching question bank and focuses on engine, diesel, main, fitted, and generator. 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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Frequently Asked Questions

This quiz contains a total of 100 practice questions carefully selected to test your knowledge on this subject.
Yes, you will have exactly 0 minutes to complete the exam. A countdown timer will be visible once you start.
Yes, you can retake this practice test as many times as you need. The questions and options may be randomized on subsequent attempts to ensure comprehensive learning.

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