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Q1. (a) Under which all circumstances, drydocking of a vessel is required. (8)

(b) What all repair and maintenance works are expected to be carried out in Dry Dock? (8)

Q2. (a) Describe with suitable schematic diagrams inspections and checks to be conducted on Tail Shaft, highlighting areas to be attended. (10)

(b) Describe the procedure for repair in way of shaft CONICAL AREA. (6)

Q3. a) Describe 2 stroke Main Engine cylinder liner diameter measuring procedure. (8)

b) What is the modern system for liner Diameter Measurement? (4)

c) What are the advantages of modern system over old system? (4)

Q4. a) What is non-destructive testing? What are non-destructive methods used in practice? (6)

b) What are the advantages of non-destructive testing? (6)

c) What are limitations of non-destructive testing (4)

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)

Q8. The exhaust temperatures of an auxiliary diesel engine are found to be excessive and uneven at normal load, with dark exhaust at the funnel.

Describe EACH of the following:

a) An investigation of the situation. (5)

b) The procedure to remedy the immediate problems. (6)

c) Any further action that might be necessary. (5)

Q6. A Centrifugal pump has been opened up due to abnormal noise:

a) List the checks you will carry out on various parts (4)

b) Name the parts which may require replacement. (4)

c) Checks to be carried out after assembly. (4)

d) Operational parameters, which may be required to be compared with manufacturers test records. (4)

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)

Q7.a) Describe how A. E, crankshaft deflections are measured. (6)

b) State how the measurements can be checked for accuracy. (5)

c) Specify with reasons other checks that should be made on the crankshaft. (5)