Urea MCQ

Test your knowledge with important Urea MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Urea MCQs at Bissoy

• Which raw material used for the production of urea?
  ক

  CO2+N2

  খ

  CO2+NH3

  গ

  NH2CONH2

  ঘ

  NH3
• In which process unconverted NH3 is absorbed?
  ক

  Stamicarbon process

  খ

  Toyo koatsu process

  গ

  Inventa process

  ঘ

  Hot- recycle process
• Which prevention can be taken to avoid the formation of biuret?
  ক

  Temperature > melting point

  খ

  Temperature < melting point

  গ

  Temperature > boiling point

  ঘ

  Temperature < boiling point
• What is the major engineering problem associated with ammonia production?
  ক

  Corrosion

  খ

  Heat recovery

  গ

  Handling deposited carbon

  ঘ

  Burner design
• In which process NH3 is compressed and returned to the autoclave?
  ক

  Inventa process

  খ

  Chemico process

  গ

  Pechiney process

  ঘ

  Montecatini process
• In which cycle NH3 and CO2 are used as raw materials?
  ক

  Claude cycle

  খ

  Wulff cycle

  গ

  Cascades cycle

  ঘ

  Montecatini solution recycle
• What is the undesirable product in urea production?
  ক

  Ammonium carbonate

  খ

  Biuret formation

  গ

  Liquid NH3

  ঘ

  Flakes formation
• Which process is associated with urea production?
  ক

  High pressure stripping operation

  খ

  Low temperature stripping operation

  গ

  Low pressure stripping operation

  ঘ

  Low temperature stripping operation
• What is the highest end use of urea?
  ক

  solid fertilizer

  খ

  liquid fertilizer

  গ

  formaldehyde resin

  ঘ

  melamine
• In which of the mentioned equipment does further decomposition of carbamate take place?
  ক

  Atmospheric flash drum

  খ

  Flash evaporator

  গ

  Distillation tower

  ঘ

  Cooling tower
• What are the resultant compounds after reaction of compressed NH3 and CO2 in autoclave on continuous basis?
  ক

  Urea

  খ

  Ammonium Carbamate

  গ

  H2O

  ঘ

  All of the mentioned
• What is the average residence time of the autoclave on continuous basis when fed with compressed ammonia and CO2?
  ক

  1-2 hours

  খ

  1.5-2 hours

  গ

  1.5-2.5 hours

  ঘ

  1.5-3 hours
• Into which of the mentioned equipment are compressed NH3 and CO2 added for production of urea by Ammonia carbamate decomposition?
  ক

  CSTR

  খ

  Parr Reactor

  গ

  Autoclave

  ঘ

  Plug type reactor
• What kind of reaction takes place when compressed ammonia and CO2 are reacted?
  ক

  Highly Endothermic

  খ

  Exothermic

  গ

  Endothermic

  ঘ

  None of the mentioned
• Ammonium carbamate decomposition results in which of the mentioned?
  ক

  Urea

  খ

  DDT

  গ

  Ammonium nitrate

  ঘ

  Ammonium hydroxide
• Which of the mentioned statements is true?
  ক

  Melamine is synthesized by condensation of urea molecules

  খ

  Melamine is synthesized by thermal cracking hydrocarbons

  গ

  Melamine is synthesized by polymerization of urea molecules

  ঘ

  None of the mentioned
• Urea-ammonium nitrate solution is regarded as which of the mentioned?
  ক

  Nitrogen fertilizer

  খ

  Phosphate fertilizer

  গ

  Potassium fertilizer

  ঘ

  Mixed fertilizer
• For which of the mentioned does Urea serve the purpose?
  ক

  Fertilizer

  খ

  Formaldehyde resins

  গ

  Melamine

  ঘ

  All of the mentioned
• What is the molecular weight of Urea?
  ক

  60

  খ

  70

  গ

  80

  ঘ

  90