Q. All of the following alloying elements of steel increases hardness but sacrifice ductility, except

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Q. The following type of bonding is strongly directional in solids.

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Q. Fog is an example of colloidal system of

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Q. Chromium molybdenum steel can not be welded using __________ welding.

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Q. Speisses is a mixture of the following:

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Q. Auto collimator is used to check

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Q. Area under the stress-strain curve upto the __________ is referred to as the modulus of resilience.

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Q. __________ is the hardest oxide and is hence used where high wear resistance at high temperature is required.

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Q. Titanium alloys are welded using the Following process:

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Q. An alloy of Fe - 0.4 % C is

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Q. A material in which the atoms are arranged regularly in some directions but not in others, is termed as 'mesomorphous material'; an example of which is

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Q. Maximum amount of thermal radiation is emitted at all wavelengths at any specified temperature by a/an __________ body.

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Q. In condensers used in thermal power plants, steam is normally used in shell side and cooling water on the tube side, because of the reason that

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Q. Cobalt - 60 is used as a source of __________ in medical therapy & industrial radiography.

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Q. Absolute zero pressure can be attained at a temperature of

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Q. The product out from a cupola is called

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Q. In troposphere (the weather domain), the temperature 't' at height 'h' above the sea level in metres is given by (where, temperature at sea level is 15°C and t is in °C.)

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Q. A high pressure boiler generates steam at a pressure greater than __________ kg/cm² .

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Q. Evaporative cooling process employs a combination of cooling and humidification in which the

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Q. Which of the following is not an explosive ?

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