A. Classification
B. Sedimentation
C. Clarification
D. Leaching
Related Mcqs:
- Dorr thickener is an equipment used for___________________?
A. Classification
B. Sedimentation
C. Clarification
D. Leaching - In a vapor-liquid contacting equipment, the overall gas phase mass transfer co-efficient (M.T.C), KG is related to individual co-efficients (KG and KL) as ___________________ ?
A. KG = 1/KG + m/KL
B. 1/KG = 1/KG + m/KL
C. 1/KG = 1/KL + m/KG
D. KG = 1/KL + m/KG - The equipment used in the extraction of highly corrosive radioactive liquids is_______________________?
A. Pulse column
B. Spray column
C. Mixer settler
D. Baffle tower - Flooding in a vapor-liquid contacting equipment occurs in a tray, when the pressure drop through a tray is _______________ the liquid head available in the downcomer?
A. Less than
B. More than
C. Same as
D. Very much less - Ponchon-Savarit method analyses the fractional equipment based on___________________?
A. Enthalpy balance only
B. Material balance only
C. Both enthalpy and material balances
D. The assumption of constant molal-overflow - The equipment frequently used for adiabatic humidification-cooling operation with recirculating liquid is_________________?
A. Natural draft cooling tower
B. Induced draft cooling tower
C. Spray chamber
D. None of these - Pore size of the molecular sieve 5A is ____________________ mm ?
A. 5
B. 0.5
C. 0.05
D. 50 - Which of the following processes is followed by unsaturated air (with dry bulb temperature 12°C and relative humidity 47%) passing through water spray washer (temperature of water being constant at 40°C ?
A. Humidification only
B. Heating only
C. Both heating and humidification
D. Evaporative cooling - Which one of the following devices is not used for both the absorption as well as the liquidliquid extraction processes ?
A. Packed towers
B. Plate towers
C. Spray towers
D. Wetted wall columns - For a binary mixture with low relative volatility___________________?
A. Use steam distillation
B. Use molecular distillation
C. Use high pressure distillation
D. An azeotrope may be formed during distillation