MCQs: A high pressure boiler generates steam at a pressure greater than _____________________ kg/cm2 ?
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MCQs: Theoretical volume of oxygen required for complete combustion of 1Nm3 of acetylene, in oxy-acetylene welding is ______________ Nm3 ?
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MCQs: Titanium is added to molten aluminium alloys before casting for the purpose of_____________________?
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MCQs: Nusselt number is related to Grashoff number (Gr) in turbulent & laminar flow respectively, in respect of free convection over a vertical flat plate as_________________?
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MCQs: Angular displacement can be measured suitably by a______________________?
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MCQs: Maximum hardenability of steel depends upon its_______________________?
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MCQs: Electrical conductivities of semi-conductors are of the order of ______________ ohm/cm ?
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MCQs: The difference in one unit of Rockwell hardness number corresponds to a difference in the depth of indentation of ______________ mm ?
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MCQs: Heating the Hypo-eutectoid steels to 30°C above the upper critical temperature line, soaking at that temperature and then cooling slowly to the room temperature to form a pearlite & ferrite structure is called_______________________?
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MCQs: Evaporative cooling process employs a combination of cooling and humidification in which the____________________?
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MCQs: Heat transfer to the water wall in a high pressure water wall type boiler furnace is mainly by_________________?
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MCQs: Nitriding of a steel part does not increase its__________________?
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MCQs: Chromium molybdenum steel cannot be welded using ______________ welding ?
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MCQs: Which of the following fastening devices has a head at one end and a nut fitted to the other ?
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MCQs: The elastic strain in copper is due to the__________________?
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MCQs: 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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MCQs: Factor of safety in machine design is defined as the ratio of ultimate stress to _____________ stress ?
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MCQs: Speisses is a mixture of the following ?
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MCQs: The difference between gross & net calorific values of fuel is due to the___________________?
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MCQs: The starting of a car takes time in winter, because the__________________?
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