Q. A polymer is termed as an 'elastomer', if its percentage elongation is more than 100%. An elastomer is termed as 'rubber' if its percentage elongation is more than __________ percent.

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Q. Current employed in resistance welding ranges from __________ kVA/cm² .

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Q. Coating thickness in case of galvanising of steel sheet generally corresponds to the deposition of __________ gms of zinc per m² of steel strip.

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Q. Chlorine acts as a bleaching agent only in the presence of

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Q. Corona discharge is related to the operation of a/an

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Q. Plastics as a material of construction suffer from the drawback of low

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Q. 'Cryogenics' is concerned with the generation & use of low temperature in the range of

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Q. The capacity of a spring to store energy is called the spring form co-efficient. Stiffness of a spring is measured by the

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Q. Which of the following materials has the maximum shrinkage allowance ?

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Q. Vibration upto 100 kilo hertz can be most accurately measured by a __________ type accelerometer.

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Q. Yield strength of a material is determined by the __________ test.

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Q. In fluid flow, and heat and mass transfer, one encounters (i) kinematic velocity (μ), (ii) molecular diffusivity (θ) and thermal diffusivity (α). The units of these quantities are.

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Q. Window panes of aeroplanes are normally made of

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Q. __________ flux is used for the extraction of metal from its self fluxing ores.

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Q. Good design of the casing of a centrifugal pump aims at minimising the

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Q. Which of the following is not a dielectric material ?

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Q. Magnetic permeability of iron is increased by its

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Q. The materials which fracture even at small strains are termed as brittle, while those materials which exhibit an appreciable deformation before failure are termed as

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Q. Material of construction of foundary crucible is

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Q. Young's modulus of a material is the measure of its

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