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A butt weld has been made by MMA in a 50 thick impact tested steel plate. The welding electrode used was a basic type 5mm diameter, the measured running parameters for one run was

A butt weld has been made by MMA in a 50 thick impact tested steel plate. The welding electrode used was a bas...

What is a typical ARC voltage setting when welding with TIG (GTAW) process in AC?

When MMA welding what will be the effect on the weld if the power source was changed from AC to DC -ve?

When using multiple SAW arc systems (twin wires etc.), the arc often has different polarities or use all AC rather than DC polarity. This is to

With which of the following NDE processes is it possible to detect both surface and slight sub-surface defects up to 2 mm below the surface

Why is it sometimes necessary to preheat the base material before welding?

What is the greatest disadvantage of a radiographic inspection?

Half-life is a term describe

Which of the following commonly used radioactive isotopes has the longest half-life?

For MPI using the prods methods, which of the following statements is true

When welding medium carbon steel plates over 100 mm in thickness would the basic electrodes require any pretreatment before use?

Which is the mode of metal transfer for the TIG (GTAW) welding process?