Which of the following is not a constituent for making porcelain insulators ?

Related Mcqs:

A circuit is disconnected by isolators when____________?

A. line is energized B. there is no current in the line C. line is on full load D. circuit breaker is not open...

In the analysis of which of the following lines shunt capacitance is neglected?

A. Short transmission lines B. Medium transmission lines C. Long transmission lines D. Medium as well as long transmission lines...

If variable part of annual cost on account of interest and depreciation on the capital outlay is equal to the annual cost of electrical energy wasted in the conductors, the total annual cost will be minimum and the corresponding size of conductor will be most economical. This statement is known as___________________?

A. Kelvin’s law B. Ohm’s law C. Kirchhoffs law D. Faraday’s law E. none of the above...

310 km line is considered as_______________?

A. a long line B. a medium line C. a short line D. any of the above...

The power factor of industrial loads is generally______________?

A. unity B. lagging C. leading D. zero...