Q. The concentration of (H⁺) ions is 4 x 10⁻⁵ in a solution. Then pH of the solution will be (Given log 4 = 0.6 )

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Q. Age hardening is connected with

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Q. With decrease in the grain size of a material, its creep resistance

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Q. __________ rubber is generally used for making 'O' rings used for vacuum sealings.

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Q. Gas turbine normally employs a constant __________ cycle.

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Q. Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young's modulus, G = Modulus of rigidity or shear modulus v = Poisson's ratio) ?

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Q. Electrostatic separation of minerals from each other is based on their differences in the following property.

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Q. Natural water contains approximately __________ percent of heavy water.

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Q. The minimum temperature to which the water can be cooled in a cooling tower is the __________ temperature of air.

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Q. In electrical resistance welding, distortion results from the use of improper

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Q. The conventional mechnical transducer, which converts pressure signal to displacement signal is

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Q. Pick out the wrong statement.

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Q. Austempering of steel requires.it to be heated to 875°C followed by sudden cooling to 250-525°C, thereby changing austenite to

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Q. A compact estimate about the amount of materials handling between various work stations is obtained from the

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Q. __________ can replace tungsten in high speed steel.

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Q. Production of one ton of paper in Indian paper industry consumes about __________ kWh of electricity.

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Q. Fatigue strength of a material can not be increased by

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Q. Steel rods are normally used for concrete reinforcement because concrete and steel have almost equal

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Q. Out of the following the refractive index is the highest for

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Q. Maximum carbon content in cast iron is __________ percent.

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