Q. High speed steel tools retain their hardness upto a temperature of __________ °C.

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Q. Wrought iron does not have

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Q. Factor of safety in machine design is defined as the ratio of ultimate stress to __________ stress.

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Q. Out of the following, the __________ pipe has the least corrosion resistance.

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Q. With increase in steam pressure, its specific volume decreases

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Q. Which of the following rays has the least wavelength?

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Q. Hydrocyclone is a

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Q. Direct conversion of thermal energy to electrical energy is facilitated by the

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Q. The minimum carbon content in steel should be __________ percent for it to respond to a hardening treatment.

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Q. Angular displacement can be measured suitably by a

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Q. Minimum temperature upto which water can be theoretically cooled down in the cooling tower by evaporative cooling is equal to the __________ temperature of air.

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Q. Heat transfer to the water wall in a high pressure water wall type boiler furnace is mainly by

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Q. Wood is a/an __________ material.

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Q. Pick out the wrong statement.

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Q. Use of flux during soldering is done to

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Q. Resilience of a bolt can be increased by increasing its

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Q. A boy weighing 110lb climbs up a 50 ft high vertical destination in 100 seconds. Horse power of the boy is __________ hp.

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Q. Endurance is a measure of fatigue limit of a metal. Fatigue crack in nitrided machine parts originates

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Q. Carbon percentage in high speed steel tool material is 0.6 to 1.0. The hardness of carbon tool steels is increased, when it is alloyed with

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Q. Draft allowance given to patterns is for

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