Process Equipment and Plant Design

For high pressure process equipments/vessels, the connected nozzle should be____________________?

Byadmin March 2, 2019August 23, 2021

For high pressure process equipments/vessels, the connected nozzle should be____________________?

A. Welded
B. Screwed
C. Flanged
D. Brazed

Process Equipment and Plant Design

A single pass air heater is connected to a two pass unit. For the air flow rate and other conditions remaining the same, the film heat transfer co-efficient for air will vary in the ratio of_________________?

A single pass air heater is connected to a two pass unit. For the air flow rate and other conditions remaining the same, the film heat transfer co-efficient for air will vary in the ratio of_________________?

A. 2
B. 20.8
C. 20.2
D. None of these

Read More A single pass air heater is connected to a two pass unit. For the air flow rate and other conditions remaining the same, the film heat transfer co-efficient for air will vary in the ratio of_________________?
Process Equipment and Plant Design

In a shell and tube heat exchanger, triangular pitch arrangement as compared to square pitch arrangement ?

In a shell and tube heat exchanger, triangular pitch arrangement as compared to square pitch arrangement ?

A. Results in higher shell side pressure drop
B. Can accomodate less number of tubes for a given shell diameter
C. Facilitates easier shell side cleaning; hence is more suitable for handling high dirt factor shell
side fluid
D. Creates relatively lower turbulence on the shell side resulting in lower shell side heat transfer
co-efficient

Read More In a shell and tube heat exchanger, triangular pitch arrangement as compared to square pitch arrangement ?
Process Equipment and Plant Design

The dust collection efficiency of a cyclone separator_________________?

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

Read More The dust collection efficiency of a cyclone separator_________________?
Process Equipment and Plant Design

For a cylindrical internally pressurised vessel, which of the following closure types would withstand highest pressure, if each closure is of the same material and thickness ?

For a cylindrical internally pressurised vessel, which of the following closure types would withstand highest pressure, if each closure is of the same material and thickness ?

A. Hemispherical
B. Ellipsoidal (2 : 1)
C. Conical
D. Flat plate

Read More For a cylindrical internally pressurised vessel, which of the following closure types would withstand highest pressure, if each closure is of the same material and thickness ?
Process Equipment and Plant Design

In the design of a shell and tube heat exchanger, the corrosion allowance ____________________?

In the design of a shell and tube heat exchanger, the corrosion allowance ____________________?

A. Need not be provided for non-pressure parts like tie rods, spacers, baffles, supports etc.
B. For carbon steel and cast iron pressure parts is 1.5 mm (except for tubes) and for severe
conditions it is 3 mm
C. For internal cover and tube sheet is provided on both the sides
D. All A., B. & C.

Read More In the design of a shell and tube heat exchanger, the corrosion allowance ____________________?
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 ?