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- Subject
- Heating and Weldingelectrical-engineering-mcqs › heating-and-welding
- Published
- 17 Dec 2018
- Last updated
- 28 May 2026
Explanation
The intensity of radiation emitted by a black body is proportional to the fourth power of its absolute temperature, as described by the Stefan-Boltzmann law.
More Heating and Welding MCQs
Practice related questions from the same subject.
- 1.Why is it important for a heating element to have a low temperature coefficient of resistance?
- 2.What is the preferred power factor for running arc furnaces?
- 3.When should the Ajax Wyatt furnace be ignited?
- 4.Which technique is commonly employed to regulate the temperature in resistance furnaces?
- 5.What is the role of a choke in an arc furnace?
- 6.In which process are hysteresis and eddy current losses primarily involved?
- 7.Why is mica utilized in electric presses in terms of its thermal and electrical conductivity?
- 8.When a ferromagnetic material is heated using induction heating, what causes the generation of heat?
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