Q.1
Axial flow impellors have _____
  • a) > 900
  • b) < 900
  • c) > 1800
  • d) < 1800
Q.2
Radial impellors are ____
  • a) Parallel
  • b) Vertical
  • c) Horizontal
  • d) Lateral
Q.3
What are the speeds of basket centrifuge?
  • a) 15,000 rpm
  • b) 10,000 rpm
  • c) 50,000 rpm
  • d) 1000 rpm
Q.4
The degree of separation depends upon the ___
  • a) Thickness of liquid layer
  • b) Thickness of solid layer
  • c) Thickness of cake layer
  • d) Thickness of strip layer
Q.5
Mixing involves ____
  • a) Solid Liquid
  • b) Solid gas
  • c) Gas Liquid
  • d) Solid Liquid gas
Q.6
Mixing can be best accomplished by the ____
  • a) Rotation
  • b) Agitation
  • c) Settling
  • d) Shaking
Q.7
Impellors are divided into ______
  • a) Initial and Final
  • b) Tangential and Torsional
  • c) Centrifuge and Torque
  • d) Axial and Radial
Q.8
______ is defined as the ratio of void containing wetting fluid and voids of both fluid.
  • a) Residual saturation
  • b) Effective saturation
  • c) Special saturation
  • d) Saturation
Q.9
Calculate Se, if the wetting fluid void is 2.5 m3 and the void containing both fluids is 8.5 m3?
  • a) 4.56
  • b) 1.02
  • c) 0.75
  • d) 0.294
Q.10
In a super centrifuge, if the radius of the basket is reducedthen ____
  • a) RPM is halved
  • b) RPM is doubled
  • c) RPM is tripled
  • d) No change in RPM
0 h : 0 m : 1 s