Elastic failure of a material occurs, when the tensile stress equals yield strength, yield point or the elastic limit. Also, the elastic failure occurs according to maximum strain theory, when the maximum tensile strain equals (where, σ = yield strength and E = modulus of elasticity)

Process Equipment and Plant Design
Elastic failure of a material occurs, when the tensile stress equals yield strength, yield point or the elastic limit. Also, the elastic failure occurs according to maximum strain theory, when the maximum tensile strain equals (where, σ = yield strength and E = modulus of elasticity)

E

Σ

E/σ

Σ/E

E

Σ

E/σ

Σ/E

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Process Equipment and Plant Design
The retention time of material in a rotary dryer depends upon its

All of these

Rpm

Slope & length

Flights arrangement

All of these

Rpm

Slope & length

Flights arrangement

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Process Equipment and Plant Design
In a double pipe concentric heat exchanger, the equivalent diameter of annulus for heat transfer would be (where, D₁ and D₂ are I.D. of inner and outer pipes)

(D₂² - D₁²)/D₁²

(D₂² - D₁²)/D₂²

D₂ - D₁

None of these

(D₂² - D₁²)/D₁²

(D₂² - D₁²)/D₂²

D₂ - D₁

None of these

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

Saddle

Lug

Skirt

Guy wire

Saddle

Lug

Skirt

Guy wire

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Process Equipment and Plant Design
Baffles are provided in a shell and tube heat exchanger to increase the turbulence and velocity of the shell side fluid. Which of the following shaped baffles does not fall in the category of transverse baffle?

Segmental baffle

Helical type baffle

Disk type baffle

Flat plate extending across the wall

Segmental baffle

Helical type baffle

Disk type baffle

Flat plate extending across the wall

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Process Equipment and Plant Design
Overall distillation column efficiency for most of the refinery columns can be given by (for μ = 0.07 - 1.4 cp and relative volatility < 4) (where η = overall column efficiency, % μ = molal average viscosity of feed at average column temperature and pressure, cp Δp = pressure drop per tray, psi)

Η = 1.66 - 0.25 log μ

Η = 24.6 (Δp/μ)

Η = 0.25 log μ - 1.67

Η = 17 - 61.1 log μ

Η = 1.66 - 0.25 log μ

Η = 24.6 (Δp/μ)

Η = 0.25 log μ - 1.67

Η = 17 - 61.1 log μ

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Process Equipment and Plant Design

Process Equipment and Plant Design The retention time of material in a rotary dryer depends upon its

Process Equipment and Plant Design In a double pipe concentric heat exchanger, the equivalent diameter of annulus for heat transfer would be (where, D₁ and D₂ are I.D. of inner and outer pipes)

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

Process Equipment and Plant Design Baffles are provided in a shell and tube heat exchanger to increase the turbulence and velocity of the shell side fluid. Which of the following shaped baffles does not fall in the category of transverse baffle?

Process Equipment and Plant Design
The retention time of material in a rotary dryer depends upon its

Process Equipment and Plant Design
In a double pipe concentric heat exchanger, the equivalent diameter of annulus for heat transfer would be (where, D₁ and D₂ are I.D. of inner and outer pipes)

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

Process Equipment and Plant Design
Baffles are provided in a shell and tube heat exchanger to increase the turbulence and velocity of the shell side fluid. Which of the following shaped baffles does not fall in the category of transverse baffle?