Q1. Describe, with the aid of a graph, EACH of the following types of ferrous material failure, stating ONE practical example of EACH:
1. creep; (5)
2. fatigue. (5)
Q6 . The steering gear operation of a vessel that recently experienced a heavy storm is found to be abnormally sluggish.
(a) State FIVE reasons for possible malfunction of the gear. (5)
(b) State the corrective actions that may be carried out at sea, that will allow the vessel to continue to the nearest port. (5)
Q6. With reference to refrigeration systems:
(a) explain why undercooling of the refrigerant at the condenser outlet is desirable; (3)
(b) describe, with the aid of a sketch, how a heat exchanger could be incorporated in the circuit to enhance undercooling; (5)
(c) explain the possible consequences of the refrigerant having a dryness fraction at the compressor suction. (2)
Q2. Discuss the advantages and disadvantages of electrical remote monitoring and control systems compared to pneumatic systems. (10)
Q1. (a) Discuss the merits of a condition monitoring system compared to other maintenance regimes. (5)
(b) Describe how the data is gathered, stored and evaluated on a computer-based vibration analysis system. (5)
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