DieselShip's Online Content Library

Q1. A. Explain the purpose of the rudder carrier and pintles.

B. The speed of a ship is increased to 18% above normal for 7.5 hours, and then reduced to 9% below normal for 10 hours. The speed is then reduced for the remainder of the day so that the consumption for the day is the normal amount. Find the percentage difference between the distance travelled in that day and the normal distance travelled per day.

Q8. The speed of a ship is increased to 18% above normal for 7.5 hours, and then reduced to 9% below normal for 10 hours. The speed is then reduced for the remainder of the day so that the consumption for the day is the normal amount. Find the percentage difference between the distance travelled in that day and the normal distance travelled per day.

Q3. A. With reference to the underwater surface of a ship’s hull; i. Describe a hull plate roughness analyser system;

ii. State the significance of the roughness profile and compare the typical roughness values for a new ship and a ship eight years old;

B. Which reference to the application of self-polishing paint in dry dock - i. Describe the plate preparation necessary;

ii. State the defects that may occur in the paint coating if it is not correctly applied.

Q5. Describe - A. A safety lamp approved as part of slips statutory equipment LIFEBUOY SELF –IGNITING LIGHTS; B. A self-igniting lamp suitable for attachment to a lifebuoy; C. State the attention required to maintain them in a satisfactory working condition.

Q6. A. Explain the principles underlying the STCW Convention;

B. Explain how as a senior engineer you would implement the regulation for controlling and monitoring of minimum hours of rest for watch keepers;

C. What type of specific shipboard familiarization is required to be given to a seafarer new to a particular type of vessel?

Q6. You have opened up a main sea-water circulating pump (centrifugal type) onboard your vessel for examination and overhaul, describe the checks you would make, and state your conclusion regarding any faults found.

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;

Q9. During the past four months since you joined the ship as Second engineer a number of main engine exhaust valve have suffered from cracking and corrosion at the seating faces; Write a report to the Superintendent Engineer covering the following points:

A. An explanation detailing how the problem becomes evident;

B. Your action upon recognizing the extent and seriousness of the problem;

C. Your reasoned view regarding the possible causes of the problem;

D. Your recommendations to avoid future incidents.

Q3: Your ship after having been accidentally grounded was taken to a dry-dock for inspection and necessary repairs. What defects would you look for in the following parts, that may have sustained damage due to grounding and suggest methods of repairs and tests that may be required to be carried out to the defects noticed:

A. Propeller and tail end shaft.

B. Main engine crankshaft.

Q7. With reference to the 4-stroke medium speed engines:

A. Define the cause and effect of thermal stressing in cylinder Heads, liners and pistons.

B. Explain why thermal stressing are aggravated with increase in cylinder bore.

C. Explain how stress concentration and its effects are relieved by maintenance and operational practices.

Q2. State with reasons, how cracking in EACH of the following location is caused, rectified and avoided

a. “A”-frame.    b. Bedplate longitudinal girder.            c. Bed plate transverse girder.

Q2. With reference to the carriage and pumping of liquefied gas cargo:

A. Sketch a suitable pumping system labelling the component parts;

B. State;

i) Why submerged hydraulically driven pumps are not used;

ii) How overheating of pump drive shaft bearings is avoided;

C. State, how the risk of fire and explosion in cargo tanks is obviated both in the loaded and discharged condition.

Q4. Sketch a sealing arrangement for an oil lubricated stern tube.

a) Identify the common forms of seal failure. (6)

b) State how oil loss due to seal failure can be restricted whilst on passage. (5)

c) What is the material used for sealing rings and propeller shaft liner? (5)

Q6. A. Define following terms with reference to alternating currents - Cycle; Time-period; Frequency; Peak factor

B. A heater unit of inductance has a resistance of 6.5 ohms and is intended for use with 100V mains. For what 50Hz voltage would it be suitable when placed in series with an external apparatus, of negligible resistance, having an inductance of 0.01H. If the frequency rises by 5 per cent and this voltage remains constant, what constant, what would be the resulting change or voltage at the heater terminals?