The electrode of a direct arc furnace is made of____________?

Related Mcqs:

method has leading power factor____________?

A. Resistance heating B. Dielectric heating C. Arc heating D. Induction heating...

By which of the following methods the temperature inside arc nace can be varied ?

A. By disconnecting some of the heating elements B. By varying the operating voltage C. By varying the current through heating elements D. By any of the above method...

In an electric room heat convector the method of heating used is______________?

A. arc heating B. resistance heating C. induction heating D. dielectric heating...

By the use of which of the following, high frequency power supply for induction furnaces can be obtained ?

A. Coreless transformers B. Current transformers C. Motor-generator set D. Multi-phase transformer...

In arc furnace the function of choke is______________?

A. to stabilize the arc B. to imprpve, power factor C. to reduce severity of the surge D. none of the above...