Perminvar alloy having constant permeability is an alloy of________________?

Related Mcqs:

For the allotropic forms of iron, the points of arrest are __________________?

A. the points where no further change oc-curs B. constant for all metals C. the points where there is no further flow of metal D. the points of discontinuity E. the points where major changes take place...

An engineer’s hammer is made of___________________?

A. cast iron B. forged steel C. mild steel D. high carbon steel E. H.S.S...

The ultimate tensile strength of low carbon steel by working at a high strain rate will_________________?

A. decrease B. increase C. remain constant D. first increase and then decrease E. first decrease and then increase...

Pipes for bicycle frames are made of___________________?

A. cold rolled steel B. hot rolled steel C. forged steel D. cast steel E. carbon-chrome steel...

The alloy used for making electrical resistances and heating elements is____________________?

A. nichrome B. invar C. magnin D. elinvar E. peiminvar...