The material of the heating element for a furnace should have___________?

Related Mcqs:

Heat is transferred simultaneously by condition, convection and radiation_____________?

A. inside boiler furnaces B. during melting of ice C. through the surface of the insulted pipe carrying steam D. from refrigerator coils to freezer of a refrigerator...

For heating element high resistivity material is chosen to______________?

A. reduce the length of heating element B. increase the life of the heating element C. reduce the effect of oxidation D. produce large amount of heat...

In resistance heating highest working temperature is obtained from heating elements made of_____________?

A. nickel copper B. nichrome C. silicon carbide D. silver...

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

A. To achieve better heating B. To increase the life of roof refractory C. To have better stirring action D. To reduce problem of oxidation E. All of the above...

In electric press, mica is used because it is _________ conductor of heat but/and __________ conductor of electricity?

A. bad, good B. bad, bad C. good, bad D. good, good...