Q. The suction and delivery pressure for a two stage compressor are 1 and 25 atm respectively. The intermediate stage pressure would be around __________ atm.

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Q. __________ method of depreciation calculation ensures that the interest is charged on the cost of machine asset every year on the book value, but the rate of depreciation remains constant every year.

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Q. Main alloying element in Elinvar used in precision instruments, hair springs for watches etc. is

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Q. Color of brass changes from yellow to __________ after its dezincification which exemplifies selective leaching.

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Q. Heat dissipation in cooling towers is mainly by

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Q. In BOF, desiliconisation is a first order reaction. So the silicon content of the metal decreases

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Q. Maraging steels derive their strength from the following mechanism:

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Q. Ceramic compounds as compared to metallic compounds

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Q. Pressure exerted by a liquid depends upon its

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Q. The most detrimental impurity in high pressure boiler feed water is

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Q. Pick out the wrong statement.

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Q. Metal cutting by oxy-acetylene flame is accomplished by the __________ of the metal.

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Q. The material used for coating the welding electrode is termed as the

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Q. In an amorphous material, atoms defy any definite atomic structure and exist in random pattern just like in liquid. Which of the following is an amorphous material ?

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Q. Even though heat transfer co-efficients in boiling liquids is large, use of fins is advantageous, when the entire surface is exposed to __________ boiling.

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Q. 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 ).

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Q. An atom bomb works on the principle of

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Q. Eutectic reaction for iron-carbon system occurs at a temperature of __________ °C.

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Q. Which of the following is an example of stress corrosion ?

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Q. FeO (s) + CO (g) = Fe (s) + CO₂ (g), k = 0. 435 at 1173E; At equilibrium, what will be the number of moles of CO gas required to reduce one mole of FeO at 1173 K?

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