DieselShip's Online Content Library

Q3. With reference to engine operation:

a) State, with reasons, the symptoms which would indicate a cylinder head had cracked between the combustion chamber and the water space. (4)

b) describe the actions that should be taken if the engine with the symptoms in part (a) cannot be immediately stopped. (6)

c) write a report to the Superintendent outlining the probable cause and actions to prevent further occurrence.

Q2. Describe the function of EACH of the following components of a diesel engine:

(a) Chocks (4)

(b) Bedplate (4)

(c) Tie rods (4)

(d) Entablature. (4)

Q4. (a) List TWO automatic main engine slowdown parameters, stating why EACH is applied to an engine. (4)

(b) List Two automatic main engine shutdown parameters, stating why EACH is applied to an engine. (4)

(c) Explain how EACH of the parameters listed in part (a) and part (b) are tested for the correct operation. (8)

Q3. With reference to a main engine air starting system:

(a) State FIVE important safety features fitted to the system (10)

(b) State how a leaking air start valve may be detected when the engine is running (2)

(c) Explain the dangers of allowing a leaking air start valve to persist (4)

Q2. (a) With reference to combustion within a two-stroke diesel engine, state the effect of EACH of the following:

(i) Early injection. (6)

(ii) Late injection. (6)

(b) Sketch an Out of Phase diagram (draw card) for a two stroke diesel engine. (4)

Q2. Describe, with the aid of a sketch, the operational principles of a main engine exhaust gas turbo-charger. (16)