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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Q. Which of the following welding processes employs the highest welding temperature ?

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Q. The best criterion for analysing an economic investment is the

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Q. Deformation band is absent in materials having __________ lattice crystal structure.

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Q. Out of the following, the rays having the lowest wavelength is the

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Q. A fine grained grinding wheel should not be used for grinding __________ materials.

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Q. What is the effect on the performance of the economiser in the thermal power plant boiler, if the feed water temperature is very low due to preheaters being out for repairs or starving of steam supply ?

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Q. A good abrasive

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Q. Out of the following, __________ pipe is the least corrosion resistant.

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