A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity.

Process Equipment and Plant Design
A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity.

45

60

95

80

45

60

95

80

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Process Equipment and Plant Design
Longitundinal stress induced in a thin walled cylindrical storage vessel is

PD/2t

PD/3t

PD/4t

PD/6t

PD/2t

PD/3t

PD/4t

PD/6t

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Process Equipment and Plant Design
A shell may by termed as thin if its thickness to diameter ratio is less than 0.1. The factor which can be neglected in the calculation of membrane stresses is

Elongation

Bending

Shear

Deformation

Elongation

Bending

Shear

Deformation

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Process Equipment and Plant Design
The necessary wall thickness for a metallic storage vessel is a function of the

Ultimate tensile strength (or yield point) of the material and operating temperature

Diameter of the vessel

Operating pressure and welding/joint efficiency

All of these

Ultimate tensile strength (or yield point) of the material and operating temperature

Diameter of the vessel

Operating pressure and welding/joint efficiency

All of these

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Process Equipment and Plant Design
For a cylinderical vessel of moderate height, the weld joint efficiency for joints parallel to the cylinderical axis is given as 1.0, while for joints along the girth (circumference) it is given as 0.8. In calculating the shell wall thickness using code formula for an internally pressurised cylinderical vessel, what value of weld joint efficiency should be used?

0.8

(0.8)0.5

0.9

1

0.8

(0.8)0.5

0.9

1

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Process Equipment and Plant Design
For identical situation, condensing film coefficient in case of a horizontal condenser is almost __________ the value expected in case of vertical condenser.

Twice

Five times

Thrice

Half

Twice

Five times

Thrice

Half

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Process Equipment and Plant Design

Process Equipment and Plant Design A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity.

Process Equipment and Plant Design Longitundinal stress induced in a thin walled cylindrical storage vessel is

Process Equipment and Plant Design A shell may by termed as thin if its thickness to diameter ratio is less than 0.1. The factor which can be neglected in the calculation of membrane stresses is

Process Equipment and Plant Design The necessary wall thickness for a metallic storage vessel is a function of the

Process Equipment and Plant Design For identical situation, condensing film coefficient in case of a horizontal condenser is almost __________ the value expected in case of vertical condenser.

Process Equipment and Plant Design
A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity.

Process Equipment and Plant Design
Longitundinal stress induced in a thin walled cylindrical storage vessel is

Process Equipment and Plant Design
A shell may by termed as thin if its thickness to diameter ratio is less than 0.1. The factor which can be neglected in the calculation of membrane stresses is

Process Equipment and Plant Design
The necessary wall thickness for a metallic storage vessel is a function of the

Process Equipment and Plant Design
For identical situation, condensing film coefficient in case of a horizontal condenser is almost __________ the value expected in case of vertical condenser.