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

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

0.0176G1.37

HG = 0.0176G0.37

HG = 1.004G0.37

1.004G0.8

0.0176G1.37

HG = 0.0176G0.37

HG = 1.004G0.37

1.004G0.8

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Process Equipment and Plant Design
The ends of a cylinderical vessel can be closed by a head, which can be one of the four shapes. For the same thickness, choose the one which can withstand the highest pressure.

Ellipsoidal

Torispherical

Flat plate

Hemispherical

Ellipsoidal

Torispherical

Flat plate

Hemispherical

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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

20.2

None of these

20.8

2

20.2

None of these

20.8

2

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Process Equipment and Plant Design
Cylindrical pressure vessels in horizontal condition is generally supported on a __________ support.

Lug

Skirt

Guy wire

Saddle

Lug

Skirt

Guy wire

Saddle

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Process Equipment and Plant Design
In seive plate column, holes are drilled or punched in sizes ranging from 2.5 to 12 mm (5 mm being widely used). The hole pitch is normally __________ times the hole diameter to give the required hole area.

5 to 10

0.5 to 1.5

10 to 15

2.5 to 4.0

5 to 10

0.5 to 1.5

10 to 15

2.5 to 4.0

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Process Equipment and Plant Design
__________ closure is the weakest enclosure for cylindrical vessels.

Hemispherical

Conical or flat plate

Elliptical

Torispherical

Hemispherical

Conical or flat plate

Elliptical

Torispherical

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Process Equipment and Plant Design

Process Equipment and Plant Design The ends of a cylinderical vessel can be closed by a head, which can be one of the four shapes. For the same thickness, choose the one which can withstand the highest pressure.

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

Process Equipment and Plant Design Cylindrical pressure vessels in horizontal condition is generally supported on a __________ support.

Process Equipment and Plant Design In seive plate column, holes are drilled or punched in sizes ranging from 2.5 to 12 mm (5 mm being widely used). The hole pitch is normally __________ times the hole diameter to give the required hole area.

Process Equipment and Plant Design __________ closure is the weakest enclosure for cylindrical vessels.

Process Equipment and Plant Design
The ends of a cylinderical vessel can be closed by a head, which can be one of the four shapes. For the same thickness, choose the one which can withstand the highest pressure.

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

Process Equipment and Plant Design
Cylindrical pressure vessels in horizontal condition is generally supported on a __________ support.

Process Equipment and Plant Design
In seive plate column, holes are drilled or punched in sizes ranging from 2.5 to 12 mm (5 mm being widely used). The hole pitch is normally __________ times the hole diameter to give the required hole area.

Process Equipment and Plant Design
__________ closure is the weakest enclosure for cylindrical vessels.