It is desirable to operate the arc furnaces at power factor of_____________?

Related Mcqs:

Which of the following heating methods has maximum power factor ?

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

_________ has the highest value of thermal conductivity?

A. Copper B. Aluminium C. Brass D. Steel...

In the indirect resistance heating method, maximum heat-transfer takes place by____________?

A. radiation B. convection C. conduction D. any of the above...

Radiant heating is used for which of the following ?

A. Annealing of metals B. Melting of ferrous metals C. Heating of liquids in electric kettle D. Drying of paints and varnishes...

Direct arc furnaces have which of the following power factors ?

A. Unity B. Low, lagging C. Low, leading D. Any of the above...