Classic Jhumka Earrings Silver INR 113.00 Free Shipping Buy Now
Black Jhumka Earrings & Studs INR 94.00 Free Shipping Buy Now
Classic Jhumka Earrings Silver INR 207.00 Free Shipping Buy Now
Beautiful stud earing INR 93.00 Free Shipping Buy Now
Different Size Hoop and Stud Earrings Set INR 243.00 Free Shipping Buy Now
Golden Hoop Earing INR 70.00 Free Shipping Buy Now
Home Questions & Answer Science Questions & Answers Chemical Engineering Questions & Answers

Chemical Engineering Questions & Answers (Compiled from UPSC, SSC ,PSC ,IBPS previous question papers)

  • A batch reactor is characterized by

  • AConstant residence tim
  • BVariation in extent of reaction and proportion of the reaction mixture with time
  • CVariation in reactor volume
  • DVery low conversion
  • Economy of an evaporator is defined as

  • Athe number of kilograms of steam consumed per hour
  • Bthe number of kilograms of steam consumed per kilogram of solvent vaporized
  • Cthe number of kilograms of solvent vaporized per hour
  • Dthe number of kilograms of solvent vaporized per kilogram of steam fed to the evaporator
  • Capacity of an evaporator is defined as

  • Athe number of kilograms of solvent vapourized per hour
  • Bthe number of kilograms of solvent vapourized per kilogram of steam fed to the evaporator
  • Cthe number of kilograms of steam consumed per hour
  • Dthe number of kilograms of steam consumed per kilogram of sovent vapourized
  • 25 per cent cut segmental baffle means

  • Aa baffle plate whose height is 25% of the inside diameter of the shell
  • Ba baffle plate whose height is 75% of the inside diameter of the shell
  • Ca baffle plate whose height is 25% of the inside diameter of the tube
  • Da baffle plate whose height is 25% of the length of tube.
  • In a finned tube heat exchanger

  • Aonly heat transfer area is augmented
  • Bonly film coefficient is augmented
  • Cboth heat transfer area & film coefficient are augmented
  • Dnone of these
  • Cavitation in fluid flow occurs when

  • Athe pressure of flow reaches to a value close to its vapour pressure
  • Bthe total energy increase suddenly
  • Cthe total energy decreases suddenly
  • Dthe fluid velocity decreases to zero.
  • A Newtonian fluid is one which

  • Ais frictionless and imcompressible
  • Bhas a linear relationship between the magnitude of applied shear stress and the resulting rate of deformation.
  • Chas a non-linear relationship between the magnitude of applied shear stress and the resulting rate of deformation
  • Dhas a vapour pressure of 1 N/m2 at 250 C
  • Fire clay is

  • Aa basic refractory
  • Ban acidic refractory
  • Ca neutral refractory
  • Dnot a refractory material