CHEMICAL ENGINEERING | Heat Transfer

At what value of Prandtl number, the hydrodynamic and thermal boundary layers are identical ?

Byadmin August 25, 2022

Question: At what value of Prandtl number, the hydrodynamic and thermal boundary layers are identical ?
[A].

0.5

[B].

[C].

1.5

[D].

Answer: Option B

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Mass Transfer

__________ extractor is used for the concentration of radioactive nuclear waste.

Question: __________ extractor is used for the concentration of radioactive nuclear waste.
[A].

Pulsed column
[B].
Seive plate
[C].
Mixer-settler
[D].
Ballman

Answer: Option A

Explanation:

No answer description available for this question.

Read More __________ extractor is used for the concentration of radioactive nuclear waste.
CHEMICAL ENGINEERING | Chemical Process

Mercury electrolytic cell produces 50-70% NaOH solution. Its operating temperature is __________ °C.

Question: Mercury electrolytic cell produces 50-70% NaOH solution. Its operating temperature is __________ °C.
[A].

25
[B].
60-70
[C].
150-200
[D].
250-300

Answer: Option B

Explanation:

No answer description available for this question.

Read More Mercury electrolytic cell produces 50-70% NaOH solution. Its operating temperature is __________ °C.
CHEMICAL ENGINEERING | Chemical Engineering Thermodynamics

Henry’s law is closely obeyed by a gas, when its __________ is extremely high.

Question: Henry’s law is closely obeyed by a gas, when its __________ is extremely high.
[A].

pressure
[B].
solubility
[C].
temperature
[D].
none of these

Answer: Option D

Explanation:

No answer description available for this question.

Read More Henry’s law is closely obeyed by a gas, when its __________ is extremely high.
CHEMICAL ENGINEERING | Mass Transfer

Drying of a wet solid under constant drying conditions means the exposure of the wet solid to the air of constant

Question: Drying of a wet solid under constant drying conditions means the exposure of the wet solid to the air of constant
[A].

humidity
[B].
velocity
[C].
temperature
[D].
all (a), (b) & (c)

Answer: Option D

Explanation:

No answer description available for this question.

Read More Drying of a wet solid under constant drying conditions means the exposure of the wet solid to the air of constant
CHEMICAL ENGINEERING | Furnace Technology

Acid dew point temperature (ADT) of a flue gas produced by the combustion of a fuel containing 1% sulphur may be about __________ °C.

Question: Acid dew point temperature (ADT) of a flue gas produced by the combustion of a fuel containing 1% sulphur may be about __________ °C.
[A].

80
[B].
130
[C].
180
[D].
250

Answer: Option B

Explanation:

No answer description available for this question.

Read More Acid dew point temperature (ADT) of a flue gas produced by the combustion of a fuel containing 1% sulphur may be about __________ °C.
CHEMICAL ENGINEERING | Chemical Engineering Basics

Mho’s scale of hardness, which consists of 10 standard minerals is used for the measurement of __________ hardness.

Question: Mho’s scale of hardness, which consists of 10 standard minerals is used for the measurement of __________ hardness.
[A].

scratch
[B].
indentation
[C].
dynamic
[D].
rebound

Answer: Option A

Explanation:

No answer description available for this question.

Read More Mho’s scale of hardness, which consists of 10 standard minerals is used for the measurement of __________ hardness.

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