Multiple Choice Questions on Transformer 16

  1. Buchholz relay is specially suitable for which type of transformer?

    Under construction.

  2. The type of load for which voltage regulation of transformer is negative is

    Under construction.

  3. The rating of transformer is in KVA not in KW because

    Under construction.

  4. Leakage flux in a transformer depends upon

    Under construction.

  5. A Buchhloz relay is used for

    Under construction.

  6. What is the recommended preventive maintenance inspection time of bushings of transformer?

    Under construction.

  7. In which of the following the highest rating transformer is likely to find application?

    Under construction.

  8. Magnetizing impedance of a transformer is determined by

    Under construction.

  9. In the circuit model of a transformer, the core loss is represented as

    Under construction.

  10. A single-phase transformer has its maximum efficiency at 60 per cent of full load. At full load copper loss will be

    Under construction.

  11. The power in auto transformer is transferred through

    Under construction.

  12. A power transformer is a constant

    Under construction.

  13. Choose the correct statement in case of transformer operation?

    Under construction.

  14. The efficiency of an auto transformer for the same output compared to a two-winding transformer is

    Under construction.

  15. In performing open circuit test of a transformer

    Under construction.

  16. In performing open circuit test of a transformer

    Under construction.

  17. The power in auto transformer is transferred through

    Under construction.

  18. The windings of a transformer are divided into several coils because

    Under construction.

  19. The required thickness of lamination in a transformer decreases when

    Under construction.

  20. Transformer humming sound is reduced by the

    Under construction.