Q. Which kind of resistance is experienced in upset butt welding?

  • (A) electric resistance
  • (B) magnetic resistance
  • (C) thermal resistance
  • (D) air resistance
💬 Discuss
✅ Correct Answer: (A) electric resistance
Explanation: in the making of an upset butt welding, there are jaws made of copper, into which the part to be welded is put, and hence a solid contact is made. at this point of contact, while the current flows, it gets transformed into heat because of electric resistance.

Published by Mr. Dubey ⭐ 104.85K Points at 20-Sep-2023 12:46 pm in Manufacturing Technology

Explanation by: Mr. Dubey
in the making of an upset butt welding, there are jaws made of copper, into which the part to be welded is put, and hence a solid contact is made. at this point of contact, while the current flows, it gets transformed into heat because of electric resistance.

💬 Discussion

Related MCQs

Q. The V-belts are particularly suitable for __________ drives.

Q. If knuckle joint is to fail by crushing failure of pin in fork, then determine the diameter of knuckle pin when 50kN axial tensile force act on rods.

Q. A man sells two houses for Rs. 24000 each. He maks 20% of the cost price on the first, but on the second he has a loss of 30% of the cost price. How m

Q. The reaction time of an average driver from recognizing an obstacle is taken as

Q. Critical value of the __________ number governs the transition from laminar to turbulent flow in free convection heat transfer.

Q. Which type of insulators are used on 132 kV transmission lines?

Q. Which residual field is most difficult to demagnetise?

Q. Which of the following statement is correct?

Q. As per IS 3861-1966, which of the following areas should not be included while calculating the plinth area of a building?

Q. If the damping factor for a vibrating system is unity, then the system will be

📊 Question Analytics

👁️
830
Total Visits
📽️
3 y ago
Published
🎖️
Mr. Dubey
Publisher
📈
81%
Success Rate