Process Equipment and Plant Design

Pressure drop per tray in the atmospheric distillation column is about ________________ psi?

Byadmin March 2, 2019August 24, 2021

Pressure drop per tray in the atmospheric distillation column is about ________________ psi?

A. 0.01 – 0.5
B. 0.07 – 0.12
C. 0.5 – 1.0
D. 1 – 3

Process Equipment and Plant Design

Tube wall thickness depends on the corrosiveness of the fluids and their operating pressure & temperature and is specified by Birmingham wire gauge (B.W.G)-a number which varies from 8 to 18 with the numbers 14 and 16 being more commonly used. Outside diameter of tubes varies from about 15 to 50 mm; however a tube of less than _____________ mm outside diameter is generally not recommended for fouling fluids ?

Tube wall thickness depends on the corrosiveness of the fluids and their operating pressure & temperature and is specified by Birmingham wire gauge (B.W.G)-a number which varies from 8 to 18 with the numbers 14 and 16 being more commonly used. Outside diameter of tubes varies from about 15 to 50 mm; however a tube of less than _____________ mm outside diameter is generally not recommended for fouling fluids ?

A. 16
B. 19
C. 28
D. 38

Read More Tube wall thickness depends on the corrosiveness of the fluids and their operating pressure & temperature and is specified by Birmingham wire gauge (B.W.G)-a number which varies from 8 to 18 with the numbers 14 and 16 being more commonly used. Outside diameter of tubes varies from about 15 to 50 mm; however a tube of less than _____________ mm outside diameter is generally not recommended for fouling fluids ?
Process Equipment and Plant Design

The optimum size ratio for two mixed reactors in series depends on the kinetics of the reaction and the conversion level. For reaction orders more than one, the_________________?

The optimum size ratio for two mixed reactors in series depends on the kinetics of the reaction and the conversion level. For reaction orders more than one, the_________________?

A. Equal sized reactors are the best
B. Smaller reactor should come first
C. Larger reactor should come first
D. None of these

Read More The optimum size ratio for two mixed reactors in series depends on the kinetics of the reaction and the conversion level. For reaction orders more than one, the_________________?
Process Equipment and Plant Design

Scale up problem in design based on the similarity concept takes into account _______________ similarity?

Scale up problem in design based on the similarity concept takes into account _______________ similarity?

A. Geometrical
B. Kinematic
C. Dynamic
D. All A., B. and C.

Read More Scale up problem in design based on the similarity concept takes into account _______________ similarity?
Process Equipment and Plant Design

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_______________?

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/stripg 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.

Read More 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_______________?
Process Equipment and Plant Design

Pick out the wrong statement about the design of sieve plate column and the bubble cap column ?

Pick out the wrong statement about the design of sieve plate column and the bubble cap column ?

A. The downcomer design and the residence time in the downcomer is almost same for sieve
plate and bubble cap columns
B. Weir length for a bubble cap plate is the same as that for the sieve plate
C. Weir height for a bubble cap plate column is the same as that for a sieve plate column
D. Weir height in case of a bubble cap plate ranges from 50 to 150 mm and is higher than the
sieve plate

Read More Pick out the wrong statement about the design of sieve plate column and the bubble cap column ?
Process Equipment and Plant Design

The wall thickness for a large high pressure pipeline is determined by the consideration of the____________________?

The wall thickness for a large high pressure pipeline is determined by the consideration of the____________________?

A. Axial tensile stress in the pipe
B. Forces exerted by static and dynamic action at bends
C. Circumferential pipe-wall tension
D. Temperature stresses

Read More The wall thickness for a large high pressure pipeline is determined by the consideration of the____________________?

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