By which of the following methods the temperature inside arcane can be varied?
A. By disconnecting some of the heating elements
B. By varying the operating voltage
C. By varying the current through heating elements
D. By any of the above method
Answer: Option D
This Question Belongs to Electrical Engineering >> Heating And Welding
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
Join The Discussion