Chemical Engineering Basics Mcqs


Q.  Pick out the wrong statement ?

a. Lead can creep under its own weight at room temperature
b. The electrical conductivity of gold is considerably reduced by alloying additions due to the decrease in electron movement
c. Recrystallisation temperature decreases with decrease in strain in a cold worked metal
d. With increase in temperature, the electrical conductivity of intrinsic semi-conductor will


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MCQs:  Austempering of steel requires it to be heated to 875°C followed by sudden cooling to 250- 525°C, thereby changing austenite to___________________?
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MCQs:  What is the percentage of chromium in 18-4-1 high speed steel ?
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MCQs:  Electrometallurgical methods of metal extraction is normally used for those metals___________________?
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MCQs:  Work required for compression of a gas contained in a cylinder is 7000 kJ. During compression, heat interaction of 3000 kJ causes the surroundings to be heated. Internal energy change of the gas during the compression is __________________ kJ ?
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MCQs:  Hydrogen can be ________________?
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MCQs:  Air standard Otto cycle is more efficient than the diesel cycle for the same__________________?
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MCQs:  Percentage of argon (by volume) in dry atmospheric air is about________________?
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MCQs:  _____________ is the process of coating the surface of steel with aluminium oxide, thereby imparting it increased resistance to corrosion & oxidation upto a temperature of 700°C ?
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MCQs:  Normalising of a casting does not__________________?
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MCQs:  Limestone addition in the blast furnace is done to flux _______________ present in the raw materials?
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MCQs:  In case of brasses, with decreasing zinc percentage and increasing copper percentage, its _____________ increases ?
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MCQs:  Metallic surveying tapes are made of _____________ which has a low co-efficient of expansion & enough strength ?
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MCQs:  Titanium is produced by ___________________ of Ti Cl4 ?
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MCQs:  Atomic _______________ is a whole number for an element?
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MCQs:  Out of the following, the lowest packing of atoms exists in ____________________ crystal lattice structure?
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MCQs:  An abrupt and sudden fall in the reading of barometer is an indication of the____________________?
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MCQs:  For the Stoke’s law to be valid in the case of a falling sphere in a fluid, the_____________________?
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MCQs:  Saturated steam at a pressure of 25 kg/cm2 is throttled to attain 5 kg/cm2. Then the outcoming steam will be_________________?
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MCQs:  Which of the following is resistant to the action of both heat & chemicals ?
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MCQs:  The kinematic viscosity (in stoke) and the absolute/dynamic viscosity (in poise) are the same for ______________ at room temperature ?
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