MCQs: Powder metallurgy process does not make metal powder by_________________________?
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MCQs: With increase in steam pressure, its specific volume decreases ____________________?
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MCQs: Wrought iron is not____________________?
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MCQs: Cast iron contains ____________________ percent carbon?
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MCQs: Transition from laminar to turbulent zone in free convection heat transfer is governed by the critical value of ?
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MCQs: Which of the following parameters is not responsible for the heat loss from a hot steam carrying bare pipe surface located in a room without fans ?
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MCQs: Ammonia leakage in the refrigeration system is detected by_________________?
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MCQs: Blast furnace slag is mainly molten_________________?
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MCQs: The best lubricants for a machine working at high temperature & load is_________________?
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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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