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Q6. a) Describe the hazards while working on electrical machinery. (4)

b) What is Lock out / Tag out system used for safety operation on electrical machinery. (8)

c) Describe machineries where Lock out / Tag out system will prevent accident. (4)

Q2. Describe an emergency electrical power generating plant for use in the event of a complete failure of the main electrical power and make reference to -

a) Location (4)

b) Starting arrangements (4)

c) Fuel oil and its supply (4)

d) Cooling system (4)

e) Periodic attention required (4)