Related Questions
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In the formation of cermets, the ratio of ceramic material to metallic material is usually 80:20. Which of the following is a cermet?
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Which of the following is not a principal alloying element for the structural steel?
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Laser welding is widely employed in the __________ industries.
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__________ glass is used in the mercury in glass thermometer meant for measuring a temperature of 500°C.
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The activity co-efficient of the solute in a dilute solution
A. Decreases with the increase of concentration of the solute
B. Increases with the increase of concentration of the solute
D. Is unity at infinite dilution
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Venturimeter is used to measure the flow rate of fluids in pipes, when the pipe is in __________ position.
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Copper deposits are found in India at the following location:
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What is the value of entropy at 273°K?
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A material being tested for endurance strength is subjected to the __________ load.
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Atomic __________ of an element is a whole number.
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Which of the following can be manufactured using powder metallurgy techniques?
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The main charge in blast furnace is usually
C. Limestone, coke & iron ore
D. Limestone, sand & iron ore
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The fugacity of liquid water at 298 K is approximately 3171 Pa. Considering the ideal heat of vaporisation as 43723 J/gm.mole, its fugacity at 300 K would be
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An approximately __________ process exemplifies the flow of a gas through a very long pipe of uniform cross-section.
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When the wavelength of incident X-rays increases, the angle of diffraction
D. Shows no systematic variation
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The __________ of a double acting reciprocating pump as compared to the single acting pump will be almost double.
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Which of the following forces does not act on a fluid at rest?
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At absolute zero temperature, for any reaction involving condensed phases
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Cast iron contains __________ percent carbon.
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__________ is not used as a material of construction in thermocouples.
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Which of the following is the most suitable material of construction for the condenser tubes, where the cooling medium is brine (salty water)?
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The excess air required for the combustion of pulverised coal is of the order of about __________ percent.
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Which of the following is not an ore of copper?
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Dryness factor of steam is defined as the ratio of the mass of vapor in the mixture to the mass of the mixture. Dryness factor of steam is measured by a __________ calorimeter.
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The amount of water evaporated in kg per kg of fuel burnt in a boiler is called the __________ of a boiler.
B. Evaporation efficiency
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Which of the following is the most wear resistant grade of carbide used for the cutting tools?
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The noble metals
A. Are exemplified by Na, K and Li
B. Do not resist corrosion very strongly
C. Are the lowermost in the electro-chemical series of metals
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Consideration of the creep is the most important in case of the
B. Piston of an I. C. engine
C. Flywheel of steam engine
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Tin based white metals are used, where bearings are subjected to
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Two wires of the same radius & material having length in the ratio of 1 : 2 are stretched by the same force. The strain produced in the two wires will be in the ratio of