Q. A suitable lubricant used for watches is

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Q. Out of the following __________ iron has the best capability to bear sudden & excessive shocks.

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Q. A fluid is termed as the Newtonion fluid, when the shear stress is __________ the velocity gradient.

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Q. Transition from laminar flow to turbulent flow in fluid flow through a pipe does not depend upon the

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Q. When the wet steam is throttled but still remains wet at the exit of the throttle valve, then its temperature & dryness fraction respectively

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Q. Limestone addition in the blast furnace is done to flux __________ present in the raw materials.

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Q. The 'transition temperature' for ductile to brittle behaviour of steel increases with increase in the __________ content in steel.

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Q. The burnout heat flux in the nucleate boiling regime is not a function of the

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Q. The approximate height of a blast furnace having a useful volume of 2000 m³ is about __________ metres

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Q. The cathode in an electrochemical cell always carries

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Q. An oxidation process is accompanied with decrease in the

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Q. Hot dipping process is used for coating a low melting point metal (e.g. Pb, Sn, Zn) on iron, steel & copper having relatively higher melting points. Which of the following is not a hot dipping process ?

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Q. Nusselt number/Biot number varies

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Q. Out of the following, maximum temperature drop for a given heat flow & for the same thickness will be in the case of

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Q. Parallel straight line pattern of temperature distribution for both hot and cold fluids is observed in case of heat exchanger of the type

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Q. Rockwell number represents the

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Q. Which of the following fastening devices has its both ends threaded ?

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Q. Duralumin is an alloy of aluminium and copper. Percentage of copper in duralumin is

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Q. Copper is not present as an alloying constituent in

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Q. Lead is added to 60:40 brass primarily to improve

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