Related Mcqs:

1. Frame thickness in the plate and frame filter press is normally in the range of ______________ inches?

   A. 0.25 to 4
   B. 0.25 to 8
   C. 1 to 5
   D. 1 to 12

2. Thickness of the frame of a plate and frame filter as compared to that of plates is___________________?

   A. Less
   B. Same
   C. More
   D. Either A. or B.

3. A high vapour velocity is required for high plate efficiency in a sieve plate column. The satisfactory value of operating vapor velocity for design purpose in sieve plate column is about _______________ percent of the flooding velocity?

   A. 45
   B. 60
   C. 80
   D. 95

4. Height equivalent to a theoretical plate (HETP) is the height of packing that will give the same separation as one theoretical plate in gas-liquid mass transfer operations like distillation, absorption/stripping and humidification/dehumidification. HETP which is experimentally determined, depends upon the_______________?

   A. Flow rates of each fluid
   B. Type and size of packing
   C. Concentration of each fluid
   D. All A, B. & C.

5. To avoid the tearing off the plate of an edge, the margin (i.e., the minimum distance from the centre of the rivet hole to the nearest edge of the plate) should be equal to ____________________?

   A. 0.5 d
   B. d
   C. 1.5 d
   D. 2.5 d

6. Filtration rate is affected by the________________?

   A. Pressure drop across the cake & filter medium
   B. Cake & filter medium resistance
   C. Area of filtering surface & the viscosity of filtrate
   D. All A., B. and C.

7. Poisson’s ratio of a material is the ratio of unit lateral strain to the unit axial elongation within its elastic limit. The value of Poisson’s ratio for structural and pressure vessel steel may be taken as ____________________?

   A. 0.01
   B. 0.3
   C. 0.75
   D. 0.95

8. The thickness of heat transfer plates used in the plate type heat exchanger ranges from _____________ mm, pressed in a single piece provided with grooves & corrugations?

   A. 0.3 to 0.8
   B. 1.25 to 3.125
   C. 3.5 to 7.0
   D. 8 to12

9. Speed of the drum of the rotary vacuum filter normally ranges from _____________ rpm?

   A. 0.1 to 2
   B. 5 to 7
   C. 3 to 8
   D. 8 to 15

10. In a bag filter, the pressure drop increases directly as the___________________?

    A. Density of the gas, but is independent of the viscosity of the gas
    B. Density of the gas and inversely as viscosity of the gas
    C. Viscosity of the gas and inversely as density of the gas
    D. None of these