Process Equipment and Plant Design

The normal range of velocity of steam in pipes is _________________________ m/sec?

Byadmin March 2, 2019August 23, 2021

The normal range of velocity of steam in pipes is _________________________ m/sec?

A. 0.1-0.5
B. 1-5
C. 10-20
D. 80-100

Process Equipment and Plant Design

Diameter of bubble caps used in high pressure columns is ______________ as compared to that used in identical vacuum columns?

Diameter of bubble caps used in high pressure columns is ______________ as compared to that used in identical vacuum columns?

A. Less
B. More
C. Same
D. Either A. or B.; no generalisation can be made

Read More Diameter of bubble caps used in high pressure columns is ______________ as compared to that used in identical vacuum columns?
Process Equipment and Plant Design

In a shell and tube heat exchanger having triangular pitch, the shell side equivalent diameter is given by________________?

In a shell and tube heat exchanger having triangular pitch, the shell side equivalent diameter is given by________________?

A. 4(0.86P2 – πd2/4)/πd
B. (P2 – πd2/4)/πd
C. 4(0.86P2 – πd2)/πd
D. (4P2 + πd2/4)/πd

Read More In a shell and tube heat exchanger having triangular pitch, the shell side equivalent diameter is given by________________?
Process Equipment and Plant Design

Commercial packed scrubbers are normally designed for a pressure drop range of ______________ mm water column per metre of packed height?

Commercial packed scrubbers are normally designed for a pressure drop range of ______________ mm water column per metre of packed height?

A. 4-8
B. 17-34
C. 52-68
D. 88-105

Read More Commercial packed scrubbers are normally designed for a pressure drop range of ______________ mm water column per metre of packed height?
Process Equipment and Plant Design

Steam side heat transfer co-efficient for design consideration under ordinary condition can be assumed to be about _____________ kcal/hr.m2.°C?

Steam side heat transfer co-efficient for design consideration under ordinary condition can be assumed to be about _____________ kcal/hr.m2.°C?

A. 1250
B. 2500
C. 7500
D. 15000

Read More Steam side heat transfer co-efficient for design consideration under ordinary condition can be assumed to be about _____________ kcal/hr.m2.°C?
Process Equipment and Plant Design

To keep the power input constant for a stirred vessel operating under fully developed turbulent flow conditions (constant power number), if the impeller diameter is increased by 20%, the impeller speed should be decreased by a factor of_________________?

To keep the power input constant for a stirred vessel operating under fully developed turbulent flow conditions (constant power number), if the impeller diameter is increased by 20%, the impeller speed should be decreased by a factor of_________________?

A. (1.2)3/2
B. (1.2)3/5
C. (1.2)2/3
D. (1.2)5/3

Read More To keep the power input constant for a stirred vessel operating under fully developed turbulent flow conditions (constant power number), if the impeller diameter is increased by 20%, the impeller speed should be decreased by a factor of_________________?
Process Equipment and Plant Design

n the agitators, the power required will be changed with the increase of diameter of agitator D. as ____________________?

n the agitators, the power required will be changed with the increase of diameter of agitator D. as ____________________?

IA. D2
B. D5
C. D
D. D9

Read More n the agitators, the power required will be changed with the increase of diameter of agitator D. as ____________________?