Which of the following is not used as a bearing material ?

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Particle nature of cathode rays is proved due to the fact that they ________________?

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Percentage of differential pressure lost in a Venturimeter with a tapering of 15° may be about___________________?

A. 1 B. 10 C. 25 D. 50...

Which of the following is an unconventional source of energy ?

A. Thermal power B. Hydroelectric power C. Nuclear-fusion power D. Solar power...

Ferromagnetic materials owe their properties to __________________ inner sub-shells ?

A. Completely filled B. Partially filled C. Equally filled D. Vacant...

Nusselt number is related to Grashoff number (Gr) in turbulent & laminar flow respectively, in respect of free convection over a vertical flat plate as_________________?

A. Gr0.25, Gr B. Gr0.25, Gr0.33 C. Gr, Gr0.25 D. Gr0.33, Gr0.25...