Q. A steam pipe is intended to be insulated with two layers of insulating materials of different thermal conductivities.
For minimum heat transfer to take place

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Q. Large diameter shafts are manufactured by

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Q. Common salt is produced from sea water in India generally by the __________ method.

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Q. Killed steels

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Q. Which of the following phenomenon/ phenomena is/are diffusion controlled ?

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Q. Joule-Thomson co-efficient is the ratio of

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Q. Expansion device used in a window air-conditioner is a/an

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Q. The instrument based on the following principle is used for the measurement of oxygen only in the flue gases.

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Q. Work study deals with the __________ study.

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Q. Maximum change in the hardness of mar tensite occurs in the carbon content range of __________ percent in steel.

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Q. Knocking tendency in a petrol engine decreases with increasing

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Q. Hooke's law

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Q. A colloidal system, in which a liquid is dispersed in gas is called a/an

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Q. Blast furnace is a

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Q. Speed of a submarine in deep sea & that of an aeroplane is measured by a/an

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Q. The primary strengthening mechanism in 70 : 30 brass is the

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Q. X-rays do not exhibit the property of

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Q. In the acid Bessemer process, the hot metal should have the following com-positon.

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Q. Which of the following does not come under the category of electrochemical corrosion ?

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Q. Unbreakable crockeries are made from __________ polymers.

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