Electric heating Mock Test Pdf 

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Q-: 1) Which of the following processes essentially needs direct current?

A) Welding

B) Heating

C) Refrigeration

D) Electroplating

 

Q-:  2) For arc heating, the electrodes are made of

A) Copper

B) Aluminum

C) Graphite

D) ACSR conductor

 

Q-: 3) The Power factor will be leading in case of

A) Dielectric heating

B) Resistance heating

C) Induction heating

D)  All of above

 

Q-:  4) Which of the following is of high importance in case of induction heating?

A) Voltage

B) frequency 

C) Current 

D) All of these 

 

Q-: 5) Dielectric heating is also called

A)  Volume heating 

B) Infrared heating

C) Surface heating 

D) Eddy current heating 

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