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Q5. a) Sketch the following detection heads and for each give a brief description of their operation.

(i) Rate of air temperature rise detector.

(ii) Flame detector,

(iii) Fixed temperature fire detector of the quartzoid bulb sprinkler type.

b) (i) What type of space is the rate of temperature rise detector used to protect? Give two spaces on board the ship where it would be fitted.

(ii) State where the fixed temperature fire detector is fitted on board the ship. Name

three places on the detector where its working temperature is indicated.

(iii) Where are flame detectors usually required to be fitted on ship?