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Q1. With reference to automatic sprinkler system for firefighting purposes:

a) Explain, with the aid of a heat release versus time diagram, the difference between fire control and fire suppression

b) State the limitations of using glass bulb to activate sprinkler heads and suggest, with reasons, an alternative mechanism

c) The safety devices incorporated in the system

d) The parameters governing the volume of the pressure tank

Q5. i) Sketch and describe a sprinkler head and label its parts. Explain its working principle. (10)

ii) What liquid is inside the bulb and how does it rupture? (5)

iii) Write as to how the temperature rating for the sprinkler head is determined? (5)