DieselShip's Online Content Library

Q1. (a) Explain the circumstances under which a two stroke engine fails to turn on air. (8)

(b) What investigations and corrective actions are required to be taken by you as a watchkeeping engineer if the engine does not turn on air after repeated trials? (8)

Q2. Prepare a report to the Chief Engineer stating how an emergency fire pump which had difficulty taking suction earlier during ballast passage of a ship, is now rectified to operate satisfactorily under any acceptable condition of loading of the ship. (16)

Q3. Explain in detail how you would isolate one section of a water sprinkler system for routine maintenance. Describe all tests and inspections you would make and how you would return the system to service. (16)

Q4. Describe a procedure for cylinder liner calibration indicating how the readings are recorded to allow for easy recognition of liner wear. (16)

Q5. (a) State, with reasons, the causes of fatigue cracking of engineering components. (4)

(b) State, with reasons, how material and design defects can influence fatigue life. (6)

(c) With reference to engine bed plate transverse girders explain how the incidence of fatigue cracking can be minimized. (6)

Q8. With reference to a fuel oil purifier:

(a) What are the reasons that may cause the purifier to overflow? (6)

(b) What are the reasons for the water carry-over with the oil? (5)

(c) What are the probable reasons for vibration seen during purifier starting? (5)

Q9. Describe the following turbocharger cleaning operations.

(a) Turbine side water washing. (6)

(b) Turbine side Dry Cleaning. (5)

(c) Blower side water washing (5)

Q8) (a) Describe the effects of taking fresh water from the shore as feedwater for auxiliary boilers. (5)

(b) Describe the measures taken to reduce these effects. (5)

(c) What is the purpose of deaerator in the boiler feed water system? How is the deaeration achieved? (6)

Q3. State some built in measures by which the steering gear mechanism can be kept operational, in the event of breakages, pipe failures, motor burn out etc. (16)