CHEMICAL ENGINEERING | Mass Transfer

Channelling is most severe

Byadmin August 25, 2022

Question: Channelling is most severe
[A].

in towers packed with stacked packing.

[B].

in towers packed randomly with crushed solids.

[C].

in dumped packing of regular units.

[D].

at very high liquid flow rate.

Answer: Option A

Explanation:

No answer description available for this question.

Mass Transfer

Surface renewal model of mass transfer was enunciated by___________________?

Surface renewal model of mass transfer was enunciated by___________________?

A. Toor and Marcello
B. Fick
C. Danckwerts
D. Stefan

Read More Surface renewal model of mass transfer was enunciated by___________________?
Mass Transfer

Detergent solution is dried to a powder in a ________________________?

Detergent solution is dried to a powder in a ________________________?

A. Spray dryer
B. Spouted bed dryer
C. Tunnel dryer
D. Pan open to atmosphere

Read More Detergent solution is dried to a powder in a ________________________?
CHEMICAL ENGINEERING | Chemical Process

Mineral oils (e.g. petroleum oils) are preferred over fatty oils (e.g. mustard oil, ghee, tallow, palm oil, olive oil etc.) as a lubricant due to its

Question: Mineral oils (e.g. petroleum oils) are preferred over fatty oils (e.g. mustard oil, ghee, tallow, palm oil, olive oil etc.) as a lubricant due to its
[A].

poor oxidation stability and high gum forming tendency.
[B].
greater tendency of decomposition at elevated temperature.
[C].
hydrolysis tendency in presence of water.
[D].
all (a), (b) and (c).

Answer: Option D

Explanation:

No answer description available for this question.

Read More Mineral oils (e.g. petroleum oils) are preferred over fatty oils (e.g. mustard oil, ghee, tallow, palm oil, olive oil etc.) as a lubricant due to its
CHEMICAL ENGINEERING | Chemical Engineering Basics

Corrosion rate can not be lowered by reducing the __________ of the corroding medium.

Question: Corrosion rate can not be lowered by reducing the __________ of the corroding medium.
[A].

concentration
[B].
velocity
[C].
temperature
[D].
none of these

Answer: Option A

Explanation:

No answer description available for this question.

Read More Corrosion rate can not be lowered by reducing the __________ of the corroding medium.
CHEMICAL ENGINEERING | Chemical Engineering Thermodynamics

__________ functions are exemplified by heat and work.

Question: __________ functions are exemplified by heat and work.
[A].

Path
[B].
Point
[C].
State
[D].
none of these

Answer: Option A

Explanation:

No answer description available for this question.

Read More __________ functions are exemplified by heat and work.
CHEMICAL ENGINEERING | Chemical Engineering Thermodynamics

An ideal liquid refrigerant should

Question: An ideal liquid refrigerant should
[A].

not have a subatmospheric vapour pressure at the temperature in the refrigerator coils.
[B].
not have unduly high vapour pressure at the condenser temperature.
[C].
both (a) and (b).
[D].
have low specific heat.

Answer: Option C

Explanation:

No answer description available for this question.

Read More An ideal liquid refrigerant should

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