DieselShip's Online Content Library

Q1.  You have been appointed as the Chief Engineer of an older vessel which is in dry-docking and recently been purchased by your shipping company. Describe, in a letter to the Engineering Superintendent, your inspection to ensure that the conditions of assignment are satisfactorily complied with

Q6. With reference to the circuit breaker for an a.c. generator A. Describe the preventive maintenance carried out on the circuit breaker for an A.C Generator. B. Explain the sequence of events that might occur if the breaker opens on a short circuit and state the check you would require following such event. C. Give a safe procedure to follow should a main circuit breaker fail to open under fault condition.

Q1. Describe a suitable means of withdrawal procedure for the removal of keyless propellers.

Q4. An auxiliary engine exhibits a tendency to hunt to such an extent that the engine speed variation prohibits the connection of the machine to the switchboard. A. Discuss the possible causes of hunting; B. Explain how the problem of hunting can be rectified.

Q8. For a fully automatic provisions refrigeration system incorporating a number of rooms; A. Explain how each room temperature is set;  B. Describe the sequence of events following a demand for increased refrigerant flow from one room;  C. State with reasons the devices incorporated into the system to protect the machinery and equipment against malfunction;  D. State how satisfactory operation of the plant can be established?

Q1. A. Sketch and describe a pneumatic control system for controlling temperature of main engine lubricating oil at outlet of the cooler and; B. Explain why air supplied to a pneumatic control system must be free from dust and water; C. Describe how above impurities are removed; D. State the possible consequences if the air supply is contaminated.

Q4. Describe the method of setting the safety valves of an exhaust gas boiler at sea.

a. State the limits in terms of percentage above maximum design working pressure, for setting safety valves. (8)

b. State the formality necessary when chief engineer sets the safety valves. (8)

Q1. A. As second engineer describe the procedure involved in the complete inspection of a cylinder liner and piston assembly, indicating areas of significant interest.

B. Explain with reasons, possible faults which might be found;

C. Suggest how such faults might be avoided.

Q6. Describe in detail the causes and conditions that—A. Create an explosive atmosphere in a crankcase; B. Initiate a primary explosion; C. Propagate a secondary explosion; D. State how hazardous conditions can be avoided.