The life of a ball bearing is inversely proportional to________________?

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The most suitable material of construction for a sewer to carry sewage under high pressure is________________________?

A. Asbestos cement B. Steel C. Cement concrete D. Stoneware...

Heating of ferromagnetic materials to a temperature above Curie temperature makes it ________________________?

A. Insulator for heat & electricity transmission B. Ferritic C. Behave like paramagnetic materials D. Superconductor...

Hydrogen in liquid steels is dissolved_________________?

A. As tiny gas bubbles B. In the atomic form C. In the ionic form D. In the molecular form...

Wavelength of radiation emitted by a body depends on the ________________ of its surface?

A. Temperature B. Area C. Nature D. All ‘A’, ‘B’ & ‘C’...

The softness or hardness of a grinding wheel depends upon the type & amount of bonding material used. For general purpose cutter grinding _______________ grinding wheel is normally used ?

A. Hard B. Soft C. Silicon carbide D. Aluminium oxide...