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EEE :: Heating and Welding

  1. For intermittent work which of the following furnaces is suitable?

  2. A.

     Indirect arc furnace

    B.

     Core less furnace

    C.

     Either of the above

    D.

     None of the above

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  3. Due to which of the following reasons it is desirable to have short arc length?

  4. A.

     To achieve better heating

    B.

     To increase the life of roof refractory

    C.

     To have better stirring action

    D.

     All of the above

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  5. In direct arc furnace, which of the following has high value?

  6. A.

     Current

    B.

     Voltage

    C.

     Power factor

    D.

     All of the above

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