Process Equipment and Plant Design

A. 2.5″
B. 0.5″
C. 5″
D. 50% of the plate spacing

A. A vapor phase reactor
B. Pot type reactor
C. A liquid phase reactor
D. A liquid phase catalytic reactor

A. Pitch
B. Margin
C. Back pitch
D. None of these

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

A. Preferably flow inside the tube for its easier internal cleaning
B. Preferably flow outside the tube
C. Flow at a very slow velocity
D. Flow outside the tube, when the flow is counter-current and inside the tube when the flow is
co-current

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

A. Are easier to clean
B. Are less prone to fouling
C. Can be fitted into a smaller shell diameter hence the cost of the heat exchanger would be less
D. None of these

A. Tube dia of 2.5-7.5 cms, tube length of 75-200 cms and cylindrical drum dia of 1-6 metres are
normally used
B. Area of central downtake is equal to 40 to 100% of total cross-sectional area of the
surrounding tube
C. Liquor is inside the tube while the steam is outside the tube
D. All A., B. & C.

A. Decreases
B. Increases
C. Remain unaffected
D. May increase or decrease depending upon whether the fluid is Newtonian or non-Newtonian

A. Expansion joint
B. Changes in its direction
C. Change in the shape of pipeline
D. All A., B. and C.