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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Q. Fibre reinforced plastic (FRP) are

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Q. Addition of silicon to cast iron

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Q. Lead is poured into the joint between two __________ pipes.

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Q. About __________ ton of coke is required in a cupola to produce one ton of casting.

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