Q. __________ can not increase the fatigue strength of a material.

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Q. If the head is doubled in & centrifugal pump, the power required will increase in the ratio of

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Q. Work hardenable alloy steel used to make the bucket wheel excavators, blades of bulldozers and other earth moving equipments contain iron, carbon and

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Q. Electrometallurgy is not involved in the extraction of __________ from its ore.

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Q. The bank of tubes located at the back of the domestic refrigerators are the __________ tubes.

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Q. Material having negative co-efficient of linear expansion is

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Q. Specific gravity of hot metal (pig iron) is __________ times that of the blast furnace slag.

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Q. __________ is the hardest material out of the following.

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Q. The phenomenon of weld decay is found in case of

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Q. Glass reacts with

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Q. The cost of providing service in a queing system decreases with the

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Q. The activity co-efficient of the solute in a dilute solution

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Q. Constituents of stellite are

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Q. The kinematic viscosity (in stoke) and the absolute/dynamic viscosity (in poise) are the same for __________ at room temperature.

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Q. A freely floating object is stable, if its centre of buoyancy

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Q. Which of the following materials does not form adherent oxide film on surface ?

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Q. Cassiterite is an ore of

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Q. In sheet metal forming, stretcher strains occur in

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Q. For grinding of softer materials, the grinding wheel should have __________ grain size.

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Q. The effect of friction on the flow of steam through a nozzle is to decrease the __________ of steam.

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