Coating provided on the electrodes used in the arc welding is not expected to_________________?

Related Mcqs:

Case hardening is not done by________________?

A. Nitriding B. Hot dipping C. Electroplating D. Both ‘B’ & ‘C’...

In “Imperial Smelting Process” for extraction of zinc, zinc vapour thus produced is quenched in the external condenser by the use of the following _______________________?

A. Jet of water at high pressure B. Blast of air C. Mixture of water and air D. Rain of molten lead...

The value of y = cp/cv. at < 500°C for air & most common gases can be safely assumed to be_____________________?

A. 0.8 B. 1 C. 1.4 D. 1.8...

Two wires of the same radius & material having length in the ratio of 1 : 2 are stretched by the same force. The strain produced in the two wires will be in the ratio of__________________?

A. 1 : 1 B. 1 : 2 C. 2 : 1 D. 1 : 4...

The boiling & freezing points on a newly defined temperature scale in degree ‘D’ are 400°D & 100°D respectively. The temperature reading corresponding to 60°C on this new temperature scale will be equal to _____________ °D ?

A. 140 B. 180 C. 240 D. 280...