Q. What is the range of tempering temperature (°C) for most of the materials ?

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Q. Absorptivity of a grey body varies with the

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Q. In radiative heat transfer, a grey surface is the one, which has

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Q. Overheating of satellites during re-entry to earth is controlled by

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Q. The most abundant metal present in the earth's crust is;

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Q. __________ of test specimens is not involved in any hardness testing method.

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Q. Out of the following, the most ductile material is

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Q. What happens, when SO₂ is passed through a solution of H₂S in water ?

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Q. Which of the following will resist maxi-mum shock & vibration without cracking?

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Q. Surface tension of a liquid

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Q. The moment of inertia of a body comes into play in __________ motion.

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Q. Thermoplastics are never moulded using

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Q. Pick out the wrong statement. If the net positive suction head (NPSH) requirement of a pump is not satisfied, then

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Q. While the thermosetting polymers are amorphous in nature, the thermoplastic polymers are either amorphous or crystalline. The crystalline polymers are characterised by the

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Q. The stress at which a metal fails by fatigue lies

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Q. Silicon percentage in acid resistant cast iron is about

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Q. Thermal expansion of solid is employed in the temperature measurement by a

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Q. Stress and strain are related by __________ elastic constants for a linearly elastic, homogeneous & isotropic material.

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Q. The behaviour of a metal specimen, which when plastically strained in tension reduces its yield stress in compression and vice versa; is termed as the

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Q. Function of fusible plug in a boiler is to

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