Q. A steam carraying pipeline is insulated with two layers of insulating materials with the inferior insulation material forming the inner part. If the two insulating layers are interchanged, the heat conducted will

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Q. Damage to metal surface by mechanical action is called

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Q. The escape velocity of a body on earth which is independent of its mass is about __________ km/second.

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Q. A reduction in thermal resistance during heat transfer does not occur in the

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Q. Unit of viscosity in CGS system is

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Q. Shaft/rotor speed is most accurately measured by a

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Q. __________ test determines the yield strength, Young's modulus of elasticity, percentage reduction in area & percentage elongation of a material.

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Q. The rolling process can not be used to produce

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Q. Co-efficient of performance of a Carnot cycle refrigerator operating between - 23°C and + 27°C is

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Q. Presence of nickel & chromium in steel does not raise its

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Q. Hot extrusion process is not used for making

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Q. Addition of __________ to steel does not help in improving its machinability.

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Q. Quartz is a __________ material.

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Q. A solution which resists change in its pH value on addition of acid/alkali is called the __________ solution.

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Q. Pick out the wrong statement.

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Q. The bolt is subjected to __________ when the nut is tightened by putting the washer beneath it.

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Q. Which of the following is not categorised as the ore agglomeration process ?

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Q. With increase in temperature, the surface tension of water

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Q. Laser is a device to produce

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Q. Addition of small amount of __________ to grey cast iron is done to produce nodular grey cast iron.

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