M

Mr. Dubey • 52.30K Points
Coach 

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

(A) electric resistance
(B) magnetic resistance
(C) thermal resistance
(D) air resistance
Correct : Option (A)

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.

Share

Discusssion

Login to discuss.

Be the first to start discuss.

Related MCQs

Q. which keyword is use to check exception?

Q. Rotor induced emf is maximum when slip is --

Q. During first charge in cupola the time taken by material to melt is approximately

Q. A cone shaped die is used in the orbital forging for the forging of metal parts.

Q. Hannah heats refrigerated rice which has been devoid of moisture and become dry. She heats it in a microwave. It gets unevenly heated. What should she

Q. The frequency of oscillation at compared to earth will be

Q. In electrochemical grinding, the pieces from the workpiece

Q. What is the total acceleration of a point on the rim of a flywheel 4 mts in diameter 0.6 see after it has started from rest if it accelarates uniforml

Q. A hydrogen atom has

Q. Which system of collection of sewage is called a dry system?