CHEMICAL ENGINEERING | Fluid Mechanics

Momentum correction factor used in fluid flow problems accounts for the

Byadmin August 13, 2022

Question: Momentum correction factor used in fluid flow problems accounts for the
[A].

change in direction of flow.

[B].

change in total energy.

[C].

change in pressure.

[D].

non uniform direction of velocities at inlet & outlet sections.

Answer: Option D

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Heat Transfer

It is desired to concentrate a 20% salt solution (20 kg of salt in 100 kg of solution) to a 30% salt solution in an evaporator. Consider a feed of 300 kg/min at 30°C. The boiling point of the solution is 110°C, the latent heat of vaporisation is 2100 kJ/kg and the specific heat of the solution is 4 kJ/kg.K. The rate at which the heat has to be supplied in (kJ/min) to the evaporator is

Question: It is desired to concentrate a 20% salt solution (20 kg of salt in 100 kg of solution) to a 30% salt solution in an evaporator. Consider a feed of 300 kg/min at 30°C. The boiling point of the solution is 110°C, the latent heat of vaporisation is 2100 kJ/kg and the specific heat of the solution is 4 kJ/kg.K. The rate at which the heat has to be supplied in (kJ/min) to the evaporator is
[A].

3.06 x l05
[B].
6.12 x 105
[C].
7.24 x 105
[D].
9.08 x 105

Answer: Option A

Explanation:

No answer description available for this question.

Read More It is desired to concentrate a 20% salt solution (20 kg of salt in 100 kg of solution) to a 30% salt solution in an evaporator. Consider a feed of 300 kg/min at 30°C. The boiling point of the solution is 110°C, the latent heat of vaporisation is 2100 kJ/kg and the specific heat of the solution is 4 kJ/kg.K. The rate at which the heat has to be supplied in (kJ/min) to the evaporator is
CHEMICAL ENGINEERING

Air-petrol ratio for maximum power generation in spark ignition engine is about_____________________?

Air-petrol ratio for maximum power generation in spark ignition engine is about_____________________?

A. 6 : 1
B. 12 : 1
C. 18 : 1
D. 24 : 1

Read More Air-petrol ratio for maximum power generation in spark ignition engine is about_____________________?
CHEMICAL ENGINEERING | Chemical Reaction Engineering

For a tubular reactor with space time ‘τ’ and residence time ‘θ’, the following statement holds good.

Question: For a tubular reactor with space time ‘τ’ and residence time ‘θ’, the following statement holds good.
[A].

τ and θ are always equal.
[B].
τ = θ , when the fluid density changes in the reactor.
[C].
τ = θ , for an isothermic tubular reactor in which the density of the process fluid is constant.
[D].
τ = θ , for a non-isothermal reactor.

Answer: Option C

Explanation:

No answer description available for this question.

Read More For a tubular reactor with space time ‘τ’ and residence time ‘θ’, the following statement holds good.
Fluid Mechanics

Uniform flow occurs when ___________________?

Uniform flow occurs when ___________________?

A. the flow is steady
B. the flow is streamline
C. size and shape of the cross section in a particular length remain constant
D. size and cross section change uniformly along length
E. flow occurs at constant fate

Read More Uniform flow occurs when ___________________?
CHEMICAL ENGINEERING | Environmental Engineering

On prolonged exposure to high concentration of carbon monoxide (> 5000 ppm), man dies because

Question: On prolonged exposure to high concentration of carbon monoxide (> 5000 ppm), man dies because
[A].

of clotting of blood.
[B].
of jamming of respiratory tract.
[C].
it forms carboxyhaemoglobin by combining with haemoglobin of blood, thereby making it incapable of absorbing oxygen.
[D].
it forms CO2 by combining with oxygen present in the blood.

Answer: Option C

Explanation:

No answer description available for this question.

Read More On prolonged exposure to high concentration of carbon monoxide (> 5000 ppm), man dies because
CHEMICAL ENGINEERING | Fluid Mechanics

A rotameter works on the principle of __________ pressure drop.

Question: A rotameter works on the principle of __________ pressure drop.
[A].

constant
[B].
variable
[C].
both (a) & (b)
[D].
neither (a) nor (b)

Answer: Option A

Explanation:

No answer description available for this question.

Read More A rotameter works on the principle of __________ pressure drop.

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