Category: EK GENERAL

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With reference to vessels fitted with podded propulsion systems capable of being rotated through 360°: (a) State the advantages claimed over conventional shafting and steering arrangements; (6) (b) State, with reasons, the type of vessels that are most suited to this means of propulsion. (4) Propeller, shafting & thrusters Oct 2020 (Q4)

EK General Oct 2020 (Q3)

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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) Control system Oct 2020 (Q3)

EK General Oct 2020 (Q2)

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Explain EACH of the following metallurgical processes: (a) induction hardening; (3) (b) nitriding; (3) (c) case hardening. (4) Materials Oct 2020 (Q2)

EK General Oct 2020 (Q1)

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(a) Sketch a Stress/Strain curve for a mild steel test specimen. (2) (b) With reference to the curve sketched in part (a), explain EACH of the following: (i) Modulus of elasticity; (2) (ii) Percentage elongation; (2) (iii) Ultimate tensile stress; (2) (iv) Yield stress. (2) Materials Oct 2020 (Q1)

EK General Aug 2020 (Q8)

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As Chief Engineer Officer, write a procedure listing recommendations for the safety precautions to be adopted when servicing accommodation lifts. (10) Safety Aug 2020 (Q8)

EK General Aug 2020 (Q7)

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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 Aug 2020 (Q6)

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As Chief Engineer Officer appointed to a newly acquired older vessel, compile a list of all the checks that would be required of the ship’s steering gear and associated equipment, given that no handover from the previous owners had taken place. (10) Steering & stabilizers Aug 2020 (Q6)

EK General Aug 2020 (Q5)

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With reference to centrifugal pumps: (a) Describe how EACH of the following improves pump performance: (i) Raising the speed of rotation; (2) (ii) Multi-staging. (2) (b) Explain the advantages of using centrifugal pumps instead of positive displacement pumps for lubricating oil circulating duties. (6) Pumps & system Aug 2020 (Q5)

EK General Aug 2020 (Q4)

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With reference to biological sewage systems: (a) Describe the principle of operation of a biological sewage treatment plant; (4) (b) State TWO operational factors that may adversely affect the operation of the plant and how the effects would be indicated; (2) (c) Explain why, on a long sea passage, it is inadvisable to bypass the…

EK General Aug 2020 (Q3)

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