Tag: #mca

—

by

Write a report for the engineering superintendent regarding the replacement at sea of a damaged main engine cylinder cover. The report must explain how the problem was detected, the likely cause of the damage and the action which has been instituted to prevent further incidents of this type. (16) Jul 2018 (Q7)

EK General Dec 2018 (Q2)

—

by

(a) Describe, with the aid of a sketch, a temperature measuring instrument that uses the principle of operation of a change in resistance with the application of heat (6) (b) Describe how the instrument sketched in part (a) is tested and calibrated (4) Control system Dec 2018 (Q2)

EK Motor Jul 2018 (Q6)

—

by

(a) Explain fatigue cracking, stating its cause and propagation (8) (b) Explain how the risk of fatigue cracking of cylinder head holding studs is liable to be increased by poor maintenance and engine overload (8) Jul 2018 (Q6)

EK Motor Jul 2018 (Q5)

—

by

(a) Describe, with the aid of a sketch, a waste heat recovery system for electrical generation using main engine exhaust gas in combined gas/steam turbine systems (8) (b) Describe the operation of the waste heat recovery system described in part (a) whilst the associated main engine is running (8) Jul 2018 (Q5)

EK Motor Jul 2018 (Q4)

—

by

(a) Describe, with the aid of a sketch, a diesel engine fuel system which employs direct injection of liquid gas into engine cylinders (12) (b) Explain the advantages of this type of gas injection system compared with the use of gaseous fuel in the form of gas (4) Jul 2018 (Q4)

EK General Dec 2018 (Q1)

—

by

Explain the effects of the addition of EACH of the following alloying elements in improving the characteristics of steels (a) Chromium (2) (b) Manganese (2) (c) Molybdenum (2) (d) Nickel (2) (e) Vanadium (2) Materials Dec 2018 (Q1)

EK Motor Jul 2018 (Q3)

—

by

(a) Explain why charge air coolers are fitted to turbocharged diesel engines, stating the possible effects on engine operation and performance if they are not maintained in good condition (6) (b) As Chief Engineer Officer, write instructions for the routine in-service checking of charge air cooler performance and cleanliness together with the checking of condensate…

EK General Oct 2018 (Q8)

—

by

With reference to freshwater HI-FOG fire fighting systems: (a) Sketch such a system; (6) (b) State how the system in part (a) is activated; (2) (c) State, with a reason, a suitable location for the above system. (2) Fire Oct 2018 (Q8)

EK Motor Jul 2018 (Q2)

—

by

(a) Describe, with the aid of a sketch, an open loop system for reducing SOx emissions from engine exhaust gas, explaining how the system operates whilst the vessel is in open waters (6) (b) Describe, with the aid of a sketch, a closed loop scrubber system for removing SOx from engine exhaust gas, explaining the…

EK General Oct 2018 (Q7)

—

by