In packed towers provided with pall rings liquid redistributors are positioned at heights of every 6 metres or 5-10 times the column diameter, whichever is less. Maximum size of the pall rings should not exceed __________ of the column diameter.

Process Equipment and Plant Design
In packed towers provided with pall rings liquid redistributors are positioned at heights of every 6 metres or 5-10 times the column diameter, whichever is less. Maximum size of the pall rings should not exceed __________ of the column diameter.

1/10-1/15th

1/20-1/30th

1/5-1/10th

1/2 to 1/4th

1/10-1/15th

1/20-1/30th

1/5-1/10th

1/2 to 1/4th

ANSWER DOWNLOAD EXAMIANS APP

Process Equipment and Plant Design
In a rotary drier, the average retention time of solid is(where Z = length of the drier, metres ρ = apparent solid density, kg/m³ L = flow rate of dry solids, kg/see. m² drier cross-section H = hold up of solid.)

H.ρ/L

L/Z.H.ρ

Z.H/L.ρ

Z.H.ρ/L

H.ρ/L

L/Z.H.ρ

Z.H/L.ρ

Z.H.ρ/L

ANSWER DOWNLOAD EXAMIANS APP

Process Equipment and Plant Design
Pick out the wrong statement pertaining to 'Horton sphere' used for the storage of liquid ammonia.

Horton sphere is used for the storage of liquid at sub-zero temperature at very high pressure upto 200 kg/cm²

Thickness of spherical shell is half that of the cylinderical vessel under same operating pressure condition. Besides, the ratio of surface area to volume is less for sphere than any other shape ; hen

Horton sphere is used for the storage of gases and volatile liquid at a moderate pressure of 1 to 10 kg/cm²

Diameter of Horton sphere is normally 6 to 25 metres and it is supported by 6 to 12 nos. tubular or rolled section column

Horton sphere is used for the storage of liquid at sub-zero temperature at very high pressure upto 200 kg/cm²

Thickness of spherical shell is half that of the cylinderical vessel under same operating pressure condition. Besides, the ratio of surface area to volume is less for sphere than any other shape ; hen

Horton sphere is used for the storage of gases and volatile liquid at a moderate pressure of 1 to 10 kg/cm²

Diameter of Horton sphere is normally 6 to 25 metres and it is supported by 6 to 12 nos. tubular or rolled section column

ANSWER DOWNLOAD EXAMIANS APP

Process Equipment and Plant Design
In the design of a shell and tube heat exchanger, the corrosion allowance

For internal cover and tube sheet is provided on both the sides

All of these

For carbon steel and cast iron pressure parts is 1.5 mm (except for tubes) and for severe conditions it is 3 mm

Need not be provided for non-pressure parts like tie rods, spacers, baffles, supports etc

For internal cover and tube sheet is provided on both the sides

All of these

For carbon steel and cast iron pressure parts is 1.5 mm (except for tubes) and for severe conditions it is 3 mm

Need not be provided for non-pressure parts like tie rods, spacers, baffles, supports etc

ANSWER DOWNLOAD EXAMIANS APP

Process Equipment and Plant Design
Maximum size of the raschig rings used in a packed tower is about __________ of the coloumn diameter.

1/20th

1/10th

1/30th

1/50th

1/20th

1/10th

1/30th

1/50th

ANSWER DOWNLOAD EXAMIANS APP

Process Equipment and Plant Design
In a double pipe (concentric) heat exchanger, the hydraulic radius for heat transfer (for a fluid flowing through the annulus) would be

Less than that for fluid flow

More than that for fluid flow

D₂ - D₁ (D₁ and D₂ are I.D. of inner and outer pipes respectively)

Same as that for fluid flow

Less than that for fluid flow

More than that for fluid flow

D₂ - D₁ (D₁ and D₂ are I.D. of inner and outer pipes respectively)

Same as that for fluid flow

ANSWER DOWNLOAD EXAMIANS APP

Process Equipment and Plant Design

Process Equipment and Plant Design In packed towers provided with pall rings liquid redistributors are positioned at heights of every 6 metres or 5-10 times the column diameter, whichever is less. Maximum size of the pall rings should not exceed __________ of the column diameter.

Process Equipment and Plant Design In a rotary drier, the average retention time of solid is(where Z = length of the drier, metres ρ = apparent solid density, kg/m³ L = flow rate of dry solids, kg/see. m² drier cross-section H = hold up of solid.)

Process Equipment and Plant Design Pick out the wrong statement pertaining to 'Horton sphere' used for the storage of liquid ammonia.

Process Equipment and Plant Design In the design of a shell and tube heat exchanger, the corrosion allowance

Process Equipment and Plant Design Maximum size of the raschig rings used in a packed tower is about __________ of the coloumn diameter.

Process Equipment and Plant Design In a double pipe (concentric) heat exchanger, the hydraulic radius for heat transfer (for a fluid flowing through the annulus) would be

Process Equipment and Plant Design
In packed towers provided with pall rings liquid redistributors are positioned at heights of every 6 metres or 5-10 times the column diameter, whichever is less. Maximum size of the pall rings should not exceed __________ of the column diameter.

Process Equipment and Plant Design
In a rotary drier, the average retention time of solid is(where Z = length of the drier, metres ρ = apparent solid density, kg/m³ L = flow rate of dry solids, kg/see. m² drier cross-section H = hold up of solid.)

Process Equipment and Plant Design
Pick out the wrong statement pertaining to 'Horton sphere' used for the storage of liquid ammonia.

Process Equipment and Plant Design
In the design of a shell and tube heat exchanger, the corrosion allowance

Process Equipment and Plant Design
Maximum size of the raschig rings used in a packed tower is about __________ of the coloumn diameter.

Process Equipment and Plant Design
In a double pipe (concentric) heat exchanger, the hydraulic radius for heat transfer (for a fluid flowing through the annulus) would be