1000+ Electrical Engineering Multiple choice Questions and Answers Pdf - 2

Question: 6

In an electric room heat convector the method of heating used is

(A) dielectric heating

(B) induction heating

(C) resistance heating

(D) arc heating

Question: 7

For the transmission of heat from one body to another

(A) atleast one of the bodies must have some source of heating

(B) both bodies must be solids

(C) both bodies must be in contact

(D) temperature of the two bodies must be different

Question: 8

Which of the following has the highest value of thermal conductivity?

(A) melting ice

(B) solid ice

(C) steam

(D) water

Question: 9

In resistance heating highest working temperature is obtained from heating elements made of

(A) silver

(B) silicon carbide

(C) nichrome

(D) nickel copper

Question: 10

Heat is transferred simultaneously by condition, convection and radiation

(A) from refrigerator coils to freezer of a refrigerator

(B) through the surface of the insulated pipe carrying steam

(C) during melting of ice

(D) inside boiler furnaces