QQ.1. Answer the following questions.

• (a)) What are various tools used in handling electrical installations. Explain with the help of neat diagrams. (200 words)
• (b)) What is Grid? (200 words)

QQ.2. Answer the following questions.

• (a)) Explain resistance, inductance and capacitance. Name various electrical appliances and mention the resistive, inductive and capacitive type of load these belong. (200 words)
• (b)) What do you mean by active power, reactive power and power factor in electrical systems? (200 words)

QQ.3. Answer the following questions.

• (a)) What are various quality parameters in electric power supply? (200 words)
• (b)) What are the various problems faced by Generation, Transmission and Distribution system? (200 words)

QQ.4. Answer the following questions.

• (a)) Explain different methods of equipment earthing. (200 words)
• (b)) What steps are required for maintenance of earthing in electrical installations? (200 words)

QQ.5. Answer the following questions.

• (a)) Describe working of protective relays. What are important functional requirement of relays? (200 words)
• (b)) What is the difference between fuse and circuit breaker? (200 words)

QQ.6. Answer the following questions.