Which of the following does not have a sharp melting point ?

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In Newton’s law of viscosity, which states that the shear stress is proportional to the _____________ Co-efficient of viscosity is called dynamic or absolute viscosity(where, V = velocity, Vg = velocity gradient) ?

A. V2 B. 1/V2 C. 1/Vg D. Vg...

‘Cryogenics’ is concerned with the generation & use of low temperature in the range of____________________?

A. 0°K to 123°K B. 0°C to – 123°C C. 0°C to – 273°C D. 0°K to 273°K...

Limestone is added in the blast furnace (during pig iron manufacture) to______________________?

A. Form slag by combining with impurities B. Supply heat by undergoing exothermic reaction with impurities C. Reduce the coke consumption D. Reduce slag viscosity...

_______________ is the trade name assigned to a non-ferrous cast alloy composed of cobalt, chromium & tungsten ?

A. Stellite B. High speed steel C. Cermet D. Alnico...

Energy of the sun arises mainly from __________________ reactions?

A. Fusion B. Fission C. Combustion D. None of these...