Which of the following will happen if the thickness of refractory wall of furnace is increased?
A. Heat loss through furnace wall will increase
B. Temperature inside the furnace will fall
C. Temperature on the outer surface of furnace walls will drop
D. Energy consumption will increase
Answer: Option C
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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