Tag: #ekmanagmentwritten

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With reference to centrifugal pumps. (a) explain how the internal condition may be assessed without having to dismantle the pump (3) (b) state the effects of misalignment between the driving motor and the pump (2) (c) describe with the aid of a sketch how misalignment may be corrected (5) Pumps & system Dec 2022 (Q5)

EK General Dec 2022 (Q4)

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(a) Sketch a hydraulic type of shaft coupling bolt. (4) (b) State the advantages of the arrangement in part (a) compared to conventional bolts. (3) (c) State THREE operational factors that may induce high stress in shaft coupling bolts. (3) Propeller, shafting & thrusters Dec 2022 (Q4)

EK General Dec 2022 (Q3)

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(a) Describe, with the aid of a sketch, the principle of operation of a modern shaft torsion meter. (8) (b) Explain why it is important in terms of hull efficiency to measure and compare shaft torque and speed (2) Propeller, shafting & thrusters Dec 2022 (Q3)

EK General Dec 2022 (Q2)

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(a) State the factors in the storage of Manual Metal Are welding electrodes which will assist in producing good quality welds. (2) (b) Explain the importance of edge preparation before welding. (2) (c) Sketch THREE electric arc welding defects, stating the cause of EACH. (6) Materials Dec 2022 (Q2)

EK General Dec 2022 (Q1)

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(a) Describe the properties of EACH of the following alloys used in marine engineering, giving a practical example for which EACH are suited: (i) Cupro-nickel (2) (ii) White metal (2) (iii) Titanium (2) (b) Discuss the merits of EACH of the following alloys for use in the casting of large propellers: (i) Nickel aluminum bronze.…

EK General Oct 2022 (Q8)

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With reference to fixed fire fighting systems employing fresh water in a high fog or mist explain EACH of the following (a) how the fire is contained and extinguished: (4) (b) the importance of particle size and flow rate; (4) (c) state the means by which the system may be activated (2) Fire Oct 2022…

EK General Oct 2022 (Q7)

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With reference to a vapor compression refrigeration plant (a) Explain the purpose of EACH of the following (i) Expansion valve (2) (ii) Room thermostat (2) (iii) High pressure cut out (2) (b) Explain why EACH of the following conditions are desirable (i) Superheating at the compression suction (2) (ii) Undercooling at the condenser outlet (2)…

EK General Oct 2022 (Q6)

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With reference to a hydraulic steering gear, explain EACH of the following: (a) the factors that may contribute to the failure of a hydraulic pipe coupling: (2) (b) why it is of the utmost importance that in the event of a hydraulic system failure that the rudder is locked and isolation of the affected area…

EK Motor Dec 2020 (Q6)

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