Process Equipment and Plant Design

Which of the following lengths of heat exchanger tubes are normally not used in practice ?

Byadmin March 2, 2019August 23, 2021

Which of the following lengths of heat exchanger tubes are normally not used in practice ?

A. 2.5 metres
B. 6 metres
C. 10 metres
D. 0.5 metre

Process Equipment and Plant Design

Steam economy is defined as the amount of evaporation per unit amount of steam used, while the capacity is the total evaporation obtained per hour. Use of multiple effects in evaporation ?

Steam economy is defined as the amount of evaporation per unit amount of steam used, while the capacity is the total evaporation obtained per hour. Use of multiple effects in evaporation ?

A. Increases capacity
B. Increases economy
C. Does not affect the capacity
D. Both B. & C.

Read More Steam economy is defined as the amount of evaporation per unit amount of steam used, while the capacity is the total evaporation obtained per hour. Use of multiple effects in evaporation ?
Process Equipment and Plant Design

Fouling factor must be included in the calculation of overall design heat transfer coefficient, when the liquid__________________?

Fouling factor must be included in the calculation of overall design heat transfer coefficient, when the liquid__________________?

A. Containing suspended solids flows at low velocity
B. Containing suspended solids flows at high velocity
C. Is highly viscous
D. Is of high specific gravity

Read More Fouling factor must be included in the calculation of overall design heat transfer coefficient, when the liquid__________________?
Process Equipment and Plant Design

Vertical vessels are not supported by____________________?

Vertical vessels are not supported by____________________?

A. Brackets
B. Skirts
C. Columns
D. Saddles

Read More Vertical vessels are not supported by____________________?
Process Equipment and Plant Design

In a ______________ riveted joint, the rivets in the various rows are opposite to each other?

In a ______________ riveted joint, the rivets in the various rows are opposite to each other?

A. Zig-zag
B. Chain
C. Diamond
D. None of these

Read More In a ______________ riveted joint, the rivets in the various rows are opposite to each other?
Process Equipment and Plant Design

Which of the following factors determine the amount of entrainment in a distillation column ?

Which of the following factors determine the amount of entrainment in a distillation column ?

A. Plate spacing
B. Depth of liquid above the bubble cap slots
C. Vapour velocity in the volume between the plates
D. All A., B. and C.

Read More Which of the following factors determine the amount of entrainment in a distillation column ?
Process Equipment and Plant Design

Heat transfer co-efficient, hG(Kcal/hr.m2 .°C) and mass velocity of air, G (kg/hr.m2 ) for air flow parallel to the surface in case of constant drying rate in batch drying is related as hG = 0.0176G0.8. But when the flow of air perpendicular to the surface is encountered, this equation changes to ____________________?

Heat transfer co-efficient, hG(Kcal/hr.m2 .°C) and mass velocity of air, G (kg/hr.m2 ) for air flow parallel to the surface in case of constant drying rate in batch drying is related as hG = 0.0176G0.8. But when the flow of air perpendicular to the surface is encountered, this equation changes to ____________________?

A. hG = 1.004G0.37
B. 1.004G0.8
C. hG = 0.0176G0.37
D. 0.0176G1.37

Read More Heat transfer co-efficient, hG(Kcal/hr.m2 .°C) and mass velocity of air, G (kg/hr.m2 ) for air flow parallel to the surface in case of constant drying rate in batch drying is related as hG = 0.0176G0.8. But when the flow of air perpendicular to the surface is encountered, this equation changes to ____________________?

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