DieselShip's Online Content Library

Q2. (a) Describe the sequence of events that may lead to a crankcase explosion. (6)

(b) Describe an oil mist detector, explaining how it operates. (8)

(c) Describe how an oil mist detector operation is checked for accuracy. (2)

Q4. (a) Sketch a camshaft timing chain arrangement indicating how the chain tension is adjusted. (12)

(b) State TWO items of ancillary equipment which can be driven via the timing chain. (4)

Q2. a. Describe, with the aid of a sketch, a main engine fuel oil circulating system incorporating the MGO and HFO service tanks, a fuel change over system, heating and viscosity control system and tank return system. (10)

b. Write instructions for changing the system described in part (a) of the question from MGO to HFO, indicating the checks to be made during the changeover. (6)

Q2. (a) Explain the meaning of the term Supercharging and state how it is achieved. (8)

(b) State how would you ascertain that EACH of the following components had become fouled:

(i) Charge air intercooler (4)

(ii) Air intake suction filters. (4)

Q7. A. Describe how crosshead bearing and guide clearances can be checked. (6)

b. Describe, with the aid of a sketch, the procedure for checking the condition of a crosshead engine bottom end bearing surface. (10)

Q1. (a) In the case of a main engine and Controllable Pitch Propeller not responding to bridge control, describe the routine for changing to and using Engine Room control. (8)

(b) Explain how control of fuel pump delivery is achieved when emergency manoeuvring on engine side control of a large 2 stroke crosshead engine. (8)