Podcast
Questions and Answers
What type of fuse is used in low voltage, low current domestic circuits?
What type of fuse is used in low voltage, low current domestic circuits?
- Cartridge fuse
- High Rupturing Capacity fuse
- Kit-Kat type fuse or Rewirable fuse (correct)
- Fuse Wire
What is the main purpose of calcium carbonate in a cartridge fuse?
What is the main purpose of calcium carbonate in a cartridge fuse?
- To prevent overheating of fuse
- To increase the melting point of the fuse element
- To reduce voltage in the circuit
- To evolve gases when heated (correct)
What is the purpose of silica in a High Rupturing Capacity (HRC) fuse?
What is the purpose of silica in a High Rupturing Capacity (HRC) fuse?
- To prevent formation of an arc (correct)
- To reduce voltage in the circuit
- To increase the current carrying capacity
- To increase the melting point of the fuse element
Why should a fuse be inserted in the live wire or phase of the circuit?
Why should a fuse be inserted in the live wire or phase of the circuit?
What is the main characteristic of a rewirable fuse?
What is the main characteristic of a rewirable fuse?
What type of fuse is used in medium and high voltage installations?
What type of fuse is used in medium and high voltage installations?
What is the purpose of a fuse in an electrical circuit?
What is the purpose of a fuse in an electrical circuit?
What is the purpose of a thin wire in a fuse?
What is the purpose of a thin wire in a fuse?
What happens to the current drawn from the supply in case of a short circuit?
What happens to the current drawn from the supply in case of a short circuit?
What is the primary function of an Energy Meter in a household electrical system?
What is the primary function of an Energy Meter in a household electrical system?
What is the result of a fuse blowing off if it is inserted in the negative or neutral wire of the circuit?
What is the result of a fuse blowing off if it is inserted in the negative or neutral wire of the circuit?
What is the purpose of the fuse element in a High Rupturing Capacity (HRC) fuse?
What is the purpose of the fuse element in a High Rupturing Capacity (HRC) fuse?
What is the purpose of a three-pin socket?
What is the purpose of a three-pin socket?
What is the purpose of an ELCB in a household electrical system?
What is the purpose of an ELCB in a household electrical system?
What is the purpose of a fuse in a main switch?
What is the purpose of a fuse in a main switch?
What is the maximum number of points or connected load allowed in a circuit according to ISI recommendations?
What is the maximum number of points or connected load allowed in a circuit according to ISI recommendations?
What is the purpose of an MCB in a distribution board?
What is the purpose of an MCB in a distribution board?
What type of switch is used as a main switch in a household electrical system?
What type of switch is used as a main switch in a household electrical system?
