In TIG welding, thoriated tungsten electrodes are used, because it ____________________?

Related Mcqs:

Oxide layer formed on the non-ferrous metal surface after its annealing is__________________?

A. Removed by acid pickling B. Hammered into the surface C. Removed with coarse emery cloth D. Left as such to protect the surface...

Matte smelting is used in the extraction of_____________________?

A. Lead B. Zinc C. Aluminium D. Copper...

When the wavelength of incident X-rays increases, the angle of diffraction__________________?

A. Decreases B. Increases C. Remain constant D. Shows no systematic variation...

Brazing is the joining of metals_____________________?

A. Without melting the base metal B. With a non-ferrous filler C. Both A. & B. D. Neither A. nor (B)...

Runge-Kutta method is used to solve a/an __________________________?

A. Ordinary differential equation of nth order B. Simultaneous non-linear equation C. Linear differential equation D. None of these...