Chemical Engineering Basics Mcqs

Q.  _______________ rubber is generally used for making ‘O’ rings used for vacuum sealings?

a. Natural
b. Neoprene
c. Butadiene
d. Nitrile


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  In a counter flow heat exchanger, hot fluid enters at 170°C & leaves at 150°C, while the cold fluid enters at 50°C & leaves at 70°C. The arithmetic mean temperature difference in this case is ______________ °C?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Dislocation cross-slip is difficult in those materials, which have___________________?
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MCQs:  Cold chisel & hammers are made of_________________?
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MCQs:  Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young’s modulus, G = Modulus of rigidity or shear modulus v = Poisson’s ratio) ?
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MCQs:  The cathode in an electrochemical cell always carries____________________?
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MCQs:  Multistage compression of air as compared to single stage compression offers the advantage of______________?
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MCQs:  _________________ can replace tungsten in high speed steel ?
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MCQs:  In electrical resistance welding, distortion results from the use of improper________________?
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MCQs:  Addition of ____________________ to steel does not help in improving its machinability?
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MCQs:  Dew point temperature always gives an indication of the __________________ of the moist air ?
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MCQs:  The most important consideration, while designing the refrigeration system of an aircraft is that the refrigeration system_________________?
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MCQs:  Consumable electrodes are used in the ____________________ welding?
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MCQs:  An oxidation process is accompanied with decrease in the____________________?
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MCQs:  With decrease in the grain size of a material, its creep resistance___________________?
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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 ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Hydrogen can be ________________?
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MCQs:  Air standard Otto cycle is more efficient than the diesel cycle for the same__________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts