Tag: #ekmanagmentwritten

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Describe, with the aid of a block diagram, the operation of a load sensing electronic governor controller for an AC generator. (10) Governor Jul 2017 (Q10)

EK Electrical Jul 2017 (Q9)

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With reference to automatic power management system for control of operation of main switchboards and generators (a) List the features that power management system controls in order to comply with the requirement of the vessel (7) (b) Explain how the main generator and switchboard would be controlled following a failure of power management system (3)…

EK Electrical Mar 2017 (Q11)

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With reference to the protection of electrical equipment in a distribution system (a) State the aims of the protection devices. (3) (b) List the parameters that are monitored and acted upon by the protection devices (4) (c) State, with reason, THREE causes of electrical fires (3) Electrical safety Mar 2017 (Q11)

EK Electrical Mar 2017 (Q10)

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During a complete loss of electrical power, essential vital services can be maintained by means of an Uninterrupted power supply (UPS) (a) Describe, with the aid of a block diagram, the operation of an AC input UPS arrangement (7) (b) List SIX essential services that UPS may support. (3) Batteries & Emco power supplies Mar…

EK Electrical Mar 2017 (Q9)

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(a) Sketch a circuit diagram of a self excited AC generator (5) (b) Describe the operation of the circuit sketched in part (a) (5) AC Generator Mar 2017 (Q9)

EK General Dec 2024 (Q8)

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As Chief Engineer Officer, describe the examinations that would be carried out during a safety equipment survey with regard to fire safety. (10) 10 marks Dec 2024, Dec 2021, Dec 2018 Fire Dec 2024 (Q8)

EK General Dec 2024 (Q7)

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With reference to ships air conditioning plants: (a) State the temperatures and relative humidities at EACH of the points that are regarded as the boundaries of the comfort zone. (2) (b) Explain how the temperatures and relative humidities could be maintained within the comfort zone when the ship is in EACH of the following locations:…

EK General Dec 2024 (Q6)

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(a) Sketch a rotary vane steering and hydraulic circuit showing 2 x 50% units and the directional control valves. (6) (b) Describe how the system in part (a) can still operate should an oil leak occur. (2) (c) State the advantages of rotary vane compared to four ram steering gear. (2) 10 marks Dec 2024,…

EK General Dec 2024 (Q5)

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With reference to centrifugal pumps and pumping systems: (a) Explain the principle of operation of a centrifugal pump; (4) (b) Define net positive suction head available (NPSHa); (2) (c) State the effects of temperature on NPSHa; (2) (d) Describe how the effects of temperature can be overcome. (2) 10 marks Dec 2024 Pumps & system…

EK General Dec 2024 (Q4)

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