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Q5. With reference to Air- Conditioning Units onboard merchant vessels:

a) With the aid of a simple sketch, explain the “trouble spots” in a basic air-conditioning unit. (8)

b) With reference to your sketch, explain the following:

(i) How the problem of increase in humidity of cooled air is overcome? (4)

(ii) How discomfort caused by the excessive drying effect of heated air is overcome? (4)

- - - PREVIOUSLY ASKED - - -

Q6. a) With the aid of a simple sketch, explain the “trouble spots” in a basic air-conditioning unit and

b) With reference to your sketch, explain the following: -

(i) How the problem of increase in humidity of cooled air is overcome?

(ii) How discomfort caused by the excessive drying effect of heated air is overcome?