DieselShip's Online Content Library

Q6. With regard to keeping the gas side of boilers in good condition discusses EACH of the following:

A. the mechanism of combustion, stating the factors which are important to good combustion;

B. Oil fuel treatments;

C. Soot removal equipment;

Q7. A. Explain in detail how an in-water survey is carried out; B.  State the requirements to be fulfilled before an in-water survey is acceptable to the survey authority; C. Construct a list of the items in order of importance that the underwater survey authority should include.

Q3. You have recently been appointed second engineer of a vessel and have experienced problems associated with the operation of the oily water separator.  Make a report to the company explaining the nature of the problem and suggesting possible remedies.  Assume a slop tank is available for retaining bilges until the vessel reaches port.

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.

Q9.A.Discuss the possible problems associated with air compressors which operate automatically; B. State the standing orders you, as Second Engineer, would issue orders regarding the maintenance and safe and efficient operation of air compressors; C. Outline any problems common to air receivers in machinery space/ship compressed air systems.

Q6. With reference to hull cathodic protection systems of the impressed current type: Sketch and describe such a system; Explain how protection may be ensured for the rudder and propeller; State any precautions that should be taken when this type of system is installed

Q7. What are the routine maintenance carried out to an a.c. motor; and- A. Explain the meaning of single phasing in a.c. machinery; B. State the dangers associated with single phasing and enumerate the protective normally fitted to counteract such dangers.

Q8. A biological sewage system develops a fault, which necessitates opening the unit for repair. The risk associated with opening the unit; The precaution taken to reduce the risk; Explain the significance of biological oxygen demand B.O.D.)

Q9. With regard to a U.M.S. ship having an automatic fire detection system for the machinery space,

A. Sketch a line diagram of the system showing how shipboard mains supply is fed through battery charger and emergency battery to fire detector heads and fire zone indicator panel and alarms.

B. In the event of a mains supply failure state the length of time for which the emergency battery should be capable of operating the system.

C. Sketch and describe a line termination or method of monitoring the integrity of the system