Tag: #ekmanagmentwritten

—

by

With reference to a main engine fuel system of the high pressure common rail type: (a) Sketch a common rail fuel injection system from booster pump inlet to cylinder head fuel valves, labeling the MAIN components (8) (b) Explain how the fuel pumps are operated and the common rail pressure is maintained (4) (c) Explain…

EK Motor Oct 2021 (Q5)

—

by

(a) Describe, with the aid of sketch, the water/steam circulation system for the waste heat recovery system (5) (b) Explain how economiser circulation pumps are maintained in a cool condition to allow for prolonged operation without problem (3) (c) Describe how a waste heat recovery system steam pressure is maintained and the system operated when…

EK Motor Oct 2021 (Q4)

—

by

With reference to medium speed diesel engine cylinder liners (a) Explain the cause and effect of liner polishing and glazing (6) (b) Explain the action of an anti-polishing ring during the operation of the engine (5) (c) Describe how effective cylinder lubrication is achieved (5) Cylinder liner Oct 2021 (Q4)

EK Motor Oct 2021 (Q3)

—

by

(a) Describe, with the aid of a sketch, either a diesel engine Open Loop SOx scrubber system or a closed loop scrubber system (10) (b) Explain what system needs to be monitored in order to ensure that the scrubber system meets all IMO regulations (6) Emission control Oct 2021 (Q3)

EK Motor Oct 2021 (Q2)

—

by

With reference to Power Management system: (a) Describe, with the aid of sketches, a starting air system. (8) (b) State the precautions and conditions which must be observed when an auxiliary engine is under control of Power Management System (4) (c) Explain how an auxiliary engine is started when under the control of the Power…

EK Motor Oct 2021 (Q1)

—

by

Write a report to the engineering superintendent regarding the replacement at sea of bearings on one of the main engine turbochargers. The report must explain how the bearing defects were detected, the likely cause of the bearing damage and the action which has been implemented to prevent further incidents of this type (16) Scavenging &…

EK Motor Jul 2021 (Q9)

—

by

(a) Explain why highly efficient diesel engines tend to produce more NOx than low performance diesel engine (4) (b) Describe, with the aid of a sketch, a Selective Catalytic Reduction (SCR) unit for a marine propulsion diesel engine (8) (c) Explain why accurate monitoring of the exhaust gas flows entering and leaving a selective catalytic…

EK Motor Jul 2021 (Q8)

—

by

(a) Explain why Pilot injection is required for a dual fuel engine when burning natural gas (2) (b) Describe, with the aid of a sketch, the arrangements for a dual fuel engine which is capable of burning natural gas on: (i) The Otto cycle (7) (ii) Diesel cycle (7) Dual fuel Jul 2021 (Q8)

EK Motor Jul 2021 (Q7)

—

by

(a) Explain how the buildup of residue in the scavenge space of a large slow speed two stroke engine is minimized by design, operation and maintenance (10) (b) Explain the possible damage which could be caused by a scavenge fire (6) Scavenging & Turbocharger Jul 2021 (Q7)

EK Motor Jul 2021 (Q6)

—

by