For the transmission of heat from one body to another
A. Temperature of the two bodies must be different
B. Both bodies must be solids
C. Both bodies must be in contact
D. At least one of the bodies must have some source of heating
Answer: Option A
Related Questions on Heating and Welding
A. To avoid initial rush of current
B. To avoid change in kW rating with temperature
C. Both (A) and (B)
D. Either (A) or (B)
The material of the heating element for a furnace should have
A. Lower melting point
B. Higher temperature coefficient
C. High specific resistance
D. All of the above
In induction heating __________ is abnormally high.
A. Phase angle
B. Frequency
C. Current
D. Voltage
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