In a domestic cake baking oven the temperature is controlled by
A. Voltage variation
B. Thermostat
C. Autotransformer
D. Series-parallel operation
Answer: Option D
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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
Which of the following device is necessarily required for automatic temperature control in a furnace