A. 0.01
B. 0.3
C. 0.75
D. 0.95
Process Equipment and Plant Design
The absorption factor is defined as (where, S1 = slope of the equilibrium curve, S2 = slope of the operating line) ?
A. S1/S2
B. S1.S2
C. S2/S1
D. 1/S1.S2
A perforated plate has holes of diameter dn arranged in a pitch ph. Each hole has a tube of I.D. dt passing through it. The ligament efficiency is given by_______________?
A. (ph – dh)/ph
B. (ph – dh . dt/2)/ph
C. (ph – dt)/ph
D. (ph – dh)/dh
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.
In a thin cylindrical shell, the hoop stress is ________________ stress?
A. Radial
B. Circumferential tensile
C. Compressive
D. Longitudinal
Circumferential (hoop) stress in a thin cylindrical vessel under internal pressure is _____________ the longitudinal stress?
A. Half
B. Equal to
C. Twice
D. Eight times
_______________ shaped roof is most commonly used for cylindrical tanks ?
A. Cone
B. Dome
C. Umbrella
D. Flat
The clearance between two tubes in a shell and tube heat exchanger is known as ‘ligament’, whose minimum value is _____________ the outside diameter of the tube, but in no case it should be less than 4.5 mm?
A. Equal to
B. Half
C. One fourth
D. Three fourth
The dust collection efficiency of a cyclone separator_________________?
A. Decreases with increase in gas flow rate
B. Is inversely proportional to the mass of the dust particle
C. Is directly proportional to the radius of the dust particle path
D. None of these
____________________ strain is measured using a ‘strain rosetter’ ?
A. Volumetric
B. Shear
C. Linear
D. None of these