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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Q. There are one octahedral void and __________ tetrahedral void in the closest packing of atoms.

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Q. Which of the following is prone to cup and cone fracture ?

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Q. The dew point of moist air becomes __________ with decrease in its relative humidity.

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Q. Heating of ferromagnetic materials to a temperature above Curie temperature makes it

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Q. Lap joints are preferred over butt joints in soldering/brazing, because these joints are

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Q. Colour comparator is used to measure the

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