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- Subject
- Heating and Weldingelectrical-engineering-mcqs › heating-and-welding
- Published
- 17 Dec 2018
- Last updated
- 28 May 2026
Explanation
Resistance elements used for temperature control can be connected in series, parallel, series-parallel combinations, or star-delta configurations. Therefore, all these connection methods are applicable in the resistance variation technique.
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.The radiation emitted by a black body is proportional to which of the following?
- 5.Which technique is commonly employed to regulate the temperature in resistance furnaces?
- 6.What is the role of a choke in an arc furnace?
- 7.In which process are hysteresis and eddy current losses primarily involved?
- 8.Why is mica utilized in electric presses in terms of its thermal and electrical conductivity?
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