Material of construction of the electrode used in the electric resistance welding is___________________?
Correct answer: C. Copper
- A. Stainless steel
- B. Graphite
- C. Copper
- D. Steel
Explanation
Copper is used for resistance-welding electrodes because its high electrical and thermal conductivity limits electrode heating while conducting current efficiently. Steel and stainless steel have substantially higher electrical resistance, while graphite is not the usual electrode material for this application.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Plant Design and Economics
803 free Plant Design and Economics MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Plant Design and Economics questions
Plastics as a material of construction suffer from the drawback of low_________________?
Young's modulus of a material is the measure of its ___________________?
Which of the following materials has the least scrap value ?
Which of the following is not a characteristic observed in material failure by fatigue fracture ?
The bolt is subjected to _______________ when the nut is tightened by putting the washer beneath it?
The joint for soldering is supported by binding wire made of ____________________?