Heat Transfer in Evaporators MCQ

Test your knowledge with important Heat Transfer in Evaporators MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Heat Transfer in Evaporators MCQs on Bissoy. Bissoy App

• What factors affect heat transfer coefficient?
  ক

  Viscosity, density, specific heat

  খ

  Viscosity

  গ

  Density

  ঘ

  Specific heat
• How do you increase heat transfer coefficient?
  ক

  By increasing Reynolds number

  খ

  By decreasing Reynolds number

  গ

  By increasing velocity

  ঘ

  By increasing Reynolds number and velocity
• What is meant by heat transfer coefficient?
  ক

  The heat transfer coefficient is the heat transferred per unit volume per kelvin

  খ

  The heat transfer coefficient is the heat transferred per unit area per kelvin

  গ

  The heat transfer coefficient is the heat transferred per unit volume per Celsius

  ঘ

  The heat transfer coefficient is the heat transferred per unit area per Celsius
• What are the principle functions of evaporator?
  ক

  Heat exchanger and separator

  খ

  Heat exchanger

  গ

  Heat exchanger

  ঘ

  Evaporate
• Which of the following statements about rate of evaporationare correct? Statement 1: Quantity of heat required to evaporate each kg of water. Statement 2: Maximum allowable temperature of the liquid,
  ক

  True, False

  খ

  True, True

  গ

  False, True

  ঘ

  False, False
• What is evaporation?
  ক

  Process of substance in a liquid state changing to a gaseous state

  খ

  Process of substance in a solid state changing to a gaseous state

  গ

  Process of substance in a liquid state changing to a solid state

  ঘ

  Process of substance in a gaseous state changing to a liquid state
• What is conduction?
  ক

  Conduction is heat transfer by means of molecular agitation

  খ

  Conduction is mass transfer by means of molecular agitation

  গ

  Conduction is heat transfer by means of electron agitation

  ঘ

  Conduction is heat transfer by means of atom agitation
• What is the cause of convection heat transfer in evaporators?
  ক

  Convection is heat transfer by neutrons

  খ

  Convection is heat transfer by mass motion of a heat source

  গ

  Convection is mass transfer by mass motion of a fluid

  ঘ

  Convection is heat transfer by mass motion of a fluid
• What controls the overall heat transfer coefficient in falling film evaporators?
  ক

  Film thickness

  খ

  Velocity

  গ

  Liquid properties

  ঘ

  Film thickness, velocity, liquid properties
• What are modes of heat transfer in evaporators?
  ক

  Conduction and convention

  খ

  Conduction and radiation

  গ

  Radiation and convention

  ঘ

  Conduction, convention, radiation