DieselShip's Online Content Library

Q2. Write a report to your Engineer Superintendent describing a breakdown of the main refrigerating plant for cargo or ship provision giving reasons for the breakdown, the method of repair and the action taken to prevent a recurrence.

Q2.  A. As Second Engineer, outline your instructions to members of the ship’s engineering staff for inspection of the main engine timing chain; B. The inspection in A. has revealed that the roller chain needs replacement. Describe how this is achieved.

Q3. A. State the indication that main boiler generating tube is leaking i. When the amount is small; ii. When the amount is large. B. If boiler tube failure is evident describe immediate action necessary to stabilize plant.

Q5. A single forged shaft for a small gear pump is broken in the middle. Suggest some emergency repairs to the shaft to enable run the pump. State the type of repair and procedure for carrying out the repair. What is the most viable alternative to repair if no spares are available?

Q2.  Describe three ways in which each of the following defects would reveal itself during full power operation of an engine. - A. Cracked liner; B. Defective fuel valve; C. Overheated bottom end bending, D. Inefficient turbocharger

Q4. Describe the procedure to be undertaken when, upon a routine schedule for changing fuel injectors on a main engine, it is found that the injector body is seized and cannot be removed by conventional means. (10)

--- PREVIOUSLY ASKED AS ---

2021/APR/08 - 2020/NOV/08 - 2024/JUN/09

Q8. A). Describe the procedure to be undertaken when, upon a routine schedule for changing fuel injector on a main engine, it is found that the injector body is seized and cannot be removed by conventional means.

B). Briefly explain the routine tests that are carried out on main engine fuel injectors.

2011/DEC/04 - 2012/JAN/04 - 2012/DEC/04 - 2013/JUN/07

Q7. Describe the procedure to be undertaken when, upon a routine schedule for changing fuel injectors on a main engine, It is found that the injector body is seized and cannot be removed by conventional means. How to ascertain whether the cylinder head injector can be used satisfactorily.

2019/JAN/09 - 2019/APR/08

Q8. Describe the procedure to remove a seized fuel injector body from the cylinder head when it could not be removed by conventional means.

Q5. An auxiliary boiler water level control system has a differential pressure transmitter as the detecting element for water level.

A. Sketch and describe such an arrangement.

B. If the transmitter was damaged describe how a replacement unit would be calibrated

Q1. With reference to reciprocating air compressors explain the cause of the following faults. (16)

A. Collapse of discharge valve springs.

B. Breakage of plate valves.

C. Overheating of the discharge air with an unrestricted air intake.

D. Inoperative piston rings.

Q3. What factors would you consider in deciding whether to open up a cylinder unit for overhaul? After opening the unit and preparing for assembly, how would you decide whether to renew or re-use piston rings?