Question Bank for Electrical Workshop.

Page: 06

  1. Define a transfer type instrument. What are the advantages of this type of instrument over MC and MI type ?
  2. Describe the working principle of an electrodynamometer type frequency meter.
  3. Establish mathematically why MC type instrument is suitable for only DC quantity whereas MI type is suitable for both AC and DC ?
  4. What is an MCB, how it is different from conventional circuit breakers (CBs) ? Describe different types of MCB with their applications.
  5. Explain three types of torques used in measuring instruments. Also write a comparison between ammeter and voltmeter, with at least three differences.
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