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

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. The ratio for the rate of washing to the final rate of filtration in a washing type of plate and frame filter is____________________?

   A. 0.25
   B. 0.50
   C. 0.75
   D. 1.25

3. 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

4. The thickness of segmental baffles (25 -35% cut truncated plates usually) is generally _____________ the tube wall thickness?

   A. Equal to
   B. Twice
   C. Four times
   D. Half

5. 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

6. Normally, the plate thickness of the bottoms and roofs of vertically cylindrical storage vessels as compared to that of the cylindrical shell is____________?

   A. More
   B. Less
   C. Same
   D. More or less depending upon the pressure & temperature inside the vessel and the nature of
   the fluid contained therein

7. Lap joints are preferred for plates having thickness _______________ mm?

   A. < 12.5
   B. > 3
   C. > 5
   D. 5-10

8. 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.

9. 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

10. Diameter of rivet hole (d, mm) and the plate thickness (t, mm) are related by Unwin’s formula as___________________?

    A. d = 1.1 t
    B. d = 1.6 √t
    C. d = 1.5 t
    D. d = 3 √t