Adiabatic and Environmental Lapse Rate - 2 MCQ

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• Why does the lapse rate in practice deviate from the constant value of the adiabatic lapse rate?
  ক

  There is no deviation

  খ

  Nature of pollutants

  গ

  Pressure changes

  ঘ

  Cooling effect
• What is the negative adiabatic lapse rate?
  ক

  Temperature does not change with altitude

  খ

  Temperature decreases with altitude

  গ

  Temperature increases with altitude

  ঘ

  Temperature and altitude have no relationship
• What is the superadiabatic lapse rate? (ELR – Environmental Lapse Rate; DALR – Dry adiabatic lapse rate; WALR – Wet adiabatic lapse rate)
  ক

  ELR > WALR

  খ

  ELR > DALR

  গ

  ELR = DALR

  ঘ

  ELR < WALR
• What is the wet adiabatic lapse rate in warm tropical regions?
  ক

  (1/3)(Dry adiabatic lapse rate

  খ

  Equal to the dry adiabatic lapse rate

  গ

  3 times dry adiabatic lapse rate

  ঘ

  Half of dry adiabatic lapse rate
• Which of the following is false when it comes to the (dω/dz) term in the wet adiabatic lapse rate?
  ক

  It depends on the temperature

  খ

  It is negative

  গ

  It is positive

  ঘ

  It accounts for the condensing water vapour
• What is the value of wet adiabatic lapse rate?
  ক

  More than the dry adiabatic lapse rate

  খ

  Less than the dry adiabatic lapse rate

  গ

  Equal to the dry adiabatic lapse rate

  ঘ

  Much less than the dry adiabatic lapse rate
• Which is true about the wet adiabatic lapse rate?
  ক

  Its equation is: dT/dz = -g/Cp

  খ

  It is constant

  গ

  It is used for dry air

  ঘ

  It is not constant
• The wet adiabatic lapse rate is not fully adiabatic.
  ক

  True

  খ

  False
• Which of the following expressions is the equation of wet adiabatic lapse rate? (g/R) c) dT/dz = -(g/Cp + λdω/Cpdz) d) dT/dz = -g/Cp
  ক

  dT/dz = d/Cp

  খ

  dT/dz = -[(n-1)/n

  গ

  (n-1)/n

  ঘ

  (n-1)/n
• Which phenomenon is used to describe the vertical movement of an air parcel containing moisture?
  ক

  Dry adiabatic lapse rate

  খ

  Wet Adiabatic lapse rate

  গ

  Environmental lapse rate

  ঘ

  Wet Environmental lapse rate
• Which of the following symbol denotes the dry adiabatic lapse rate?
  ক

  Γ

  খ

  κ

  গ

  ξ

  ঘ

  ζ
• What is the numerical value of the adiabatic lapse rate?
  ক

  – 6.5 degree Celsius per 1 km

  খ

  6.5 degree Celsius per 1000 m

  গ

  9.8 degree Celsius per 1 km

  ঘ

  – 9.8 degree Celsius per 1 km
• Which of the following expressions is used to describe the adiabatic lapse rate? (g/R) b) dT/dz = g/Cp c) dT/ dz = -g/Cp d) dT/dz = -(g/R)
  ক

  dT/dz = (g/R)

  খ

  (n-1)/n

  গ

  (n-1)/n

  ঘ

  (n-1)/n
• For the adiabatic lapse rate, what result does the first law of thermodynamics yield?
  ক

  dU = dQ – dW

  খ

  dU = -dW

  গ

  dU = dQ

  ঘ

  dU = 0
• Which method is used to describe the vertical movement of air pollutants in the atmosphere?
  ক

  Adiabatic lapse rate

  খ

  Environmental lapse rate

  গ

  Air pressure

  ঘ

  Air temperature