Exam Question
(a) Describe the routine and preventive maintenance procedures carried out on a plate-type cooler used on ships. Explain the steps involved in dismantling, inspection, cleaning, and reassembly of the plates. (8)
(b) Explain the procedure for detecting internal leakage in a plate-type cooler. What are the indications of leakage during operation, and how can they be confirmed during maintenance? (4)
(c) Describe the backflushing procedure for a plate-type cooler. When is it recommended, and how does it help in maintaining the efficiency of the heat exchanger? (4)