Electrical Engineering Questions And Answers :: Heating And Welding: part2



Electrical Engineering : Heating And Welding QUESTIONS AND ANSWERS :: part2 : 11 to 15

Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :

11.Which of the following is an advantage of eddy current heating ?

The amount of heat generated can be controlled accurately
Heat at very high rate can be gene-rated
The area of the surface over which heat is produced can be accurately controlled
All of the above

12.Radiant heating is used for which of the following ?

Annealing of metals
Melting of ferrous metals
Heating of liquids in electric kettle
Drying of paints and varnishes

13.The electrode of a direct arc furnace is made of

tungsten
graphite
silver
copper

14.Direct arc furnaces have which of the following power factors ?

Unity
Low, lagging
Low, leading
Any of the above

15.For heating element high resistivity material is chosen to

reduce the length of heating element
increase the life of the heating element
reduce the effect of oxidation
produce large amount of heat

More Heating And Welding QUESTIONS AND ANSWERS available in next pages

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