Material Balances -I MCQ

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• What ids the value of ω3 for P?
  ক

  0.09

  খ

  0.08

  গ

  0.07

  ঘ

  0.06
• What ids the value of ω2 for P?
  ক

  0.98

  খ

  0.88

  গ

  0.78

  ঘ

  0.68
• What is the value of ω2 for A?
  ক

  0.5

  খ

  0.6

  গ

  0.7

  ঘ

  0.8
• In a process, two feed streams are there and one output stream. The feed streams have the feed rates as 500 kg/sec and 600 kg/sec. If the output stream rate is 800 kg/s, what is the mass stored in the chamber in five seconds?
  ক

  300 kg

  খ

  500 kg

  গ

  1000 kg

  ঘ

  1500 kg
• Based on number of degrees of freedom, find the incorrect statement, consider NU = Number of unknown NE = Number of unknown equation
  ক

  NU = NE for that a solution

  খ

  NU > NE > 0 for that more independent equation required

  গ

  NU< NE < 0 for that no solution exists unless some constraints are eliminated

  ঘ

  None of the mentioned
• In a process the inputs and outputs are shown as in the diagram Correct material balance is
  ক

  B+C = A+D

  খ

  A+B = C+D

  গ

  A+C = B+D

  ঘ

  None of the mentioned
• In the given tank, there are two feeds and one output. Consider a 2 hour operation; the feed rates are 4000 kg/hr and 6000 kg/hr. The accumulated material inside the tank is 2000 kg. What is the output rate kg/hr of the material?
  ক

  9000

  খ

  8000

  গ

  7000

  ঘ

  6000
• We don`t use volume balance in a chemical process because
  ক

  Mass is not conserved in a process

  খ

  Volume is not conserved in a process

  গ

  Both a and b

  ঘ

  Neither a nor b
• Material balance equation cannot be applied to
  ক

  Total moles

  খ

  Mass of an atomic species

  গ

  Moles of an atomic species

  ঘ

  All of the mentioned
• Material balance equation can be applied to
  ক

  Total mass

  খ

  Mass of a component

  গ

  Moles of a component

  ঘ

  All of the mentioned