Author: UKM TUTICORIN

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With reference to main thrust block arrangements: (a) Explain how the tilting pads assist in the formation of an oil wedge (2) (b) Describe the actions that may be taken if upon inspection the pads are found to (i) Lightly scored (2) (ii) Wiped (2) (c) Explain how the thrust clearance may be measured, stating…

EK General Oct 2023 (Q2)

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(a) Explain EACH of the following control terms: (i) Proportional action (2) (ii) Integral action (2) (b) Describe, with the aid of a sketch, a control system that may be enhanced by the inclusion of cascade control. (6) Instrumentation & control Oct 2023 (Q2)

EK General Oct 2023 (Q1)

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Describe EACH of the following properties of materials (a) Strength (2) (b) Hardness (2) (e) Ductility (2) (d) Toughness (2) (e) Brittleness (2) Materials Oct 2023 (Q1)

EK General Jul 2023 (Q8)

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Explain the checks and procedures to be carried out prior to Unattended Machinery Space (UMS) operations. (10) Duties & watch keeping Jul 2023 (Q8)

EK General Jul 2023 (Q7)

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With reference to pneumatic instrument and control systems: (a) Sketch a control air dryer as fitted downstream from the instrument air compressor or reducing valve (6) (b) Explain the operation of the dryer sketched in part (a) (4) Control system Jul 2023 (Q7)

EK General Jul 2023 (Q6)

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With reference to the on board production of fresh water for domestic purposes: (a) explain the principles of operation of EACH of the following: (i) Low heat source evaporator (2) (ii) Flash evaporator (2) (iii) Reverse osmosis (4) (b) State the constraints placed on the installation and use of systems for shipboard production of fresh…

EK General Jul 2023 (Q5)

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(a) State the regulation pertaining to the main and auxiliary steering gear with reference to EACH of the following: (i) Rudder angle and time of operation (2) (ii) Electrical supply (3) (b) With reference to a hydraulic steering gear, explain EACH of the following (i) The factors that may contribute to the failure of a…

EK General Jul 2023 (Q4)

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With reference to centrifugal pumps: (a) Sketch a double entry impeller showing directions of flow (3) (b) Explain why double entry impellers are fitted (2) (c) Explain, with the aid of a Head versus Flow diagram, why a two speed pump is preferable to throttling where high and low capacities are demanded for a large…

EK General Jul 2023 (Q3)

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Describe, with the aid of a sketch, the principle of operation of a radial lip stern tube sealing arrangement for an oil filled stern tube, which incorporates an air space and is designed to prevent pollution. (10) Propeller, shafting & thrusters Jul 2023 (Q3)

EK General Jul 2023 (Q2)

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