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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Q. Which of the following is not used as a bearing material ?

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Q. Brass parts with high residual tensile stress at the surface are susceptible to season cracking (i.e. spontaneous cracking occuring on exposure to atmospheric corrosion), if its zinc percentage is more than

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