CHEMICAL ENGINEERING | Chemical Process

Basic oxide is absent in __________ glass.

Byadmin August 10, 2022

Question: Basic oxide is absent in __________ glass.
[A].

flint

[B].

pyrex

[C].

quartz

[D].

all (a), (b) & (c)

Answer: Option C

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Furnace Technology

Circulation of gases in furnace is caused by the

Question: Circulation of gases in furnace is caused by the
[A].

change in volume during a change of temperature.
[B].
difference in density between hot and cold gases.
[C].
furnace pressure in conjunction with draft in flues.
[D].
all (a), (b) and (c).

Answer: Option D

Explanation:

No answer description available for this question.

Read More Circulation of gases in furnace is caused by the
CHEMICAL ENGINEERING | Mass Transfer

In gas-liquid contact operation, the number of ideal stages, . This is true when the stripping factor ‘S’ is

Question: In gas-liquid contact operation, the number of ideal stages, . This is true when the stripping factor ‘S’ is
[A].

S > 1
[B].
S < 1
[C].
S = 1
[D].
S = ∞

Answer: Option A

Explanation:

No answer description available for this question.

Read More In gas-liquid contact operation, the number of ideal stages, . This is true when the stripping factor ‘S’ is
CHEMICAL ENGINEERING | Heat Transfer

In natural convection heat transfer, the correlating parameter is the

Question: In natural convection heat transfer, the correlating parameter is the
[A].

Graetz number
[B].
Eckert number
[C].
Grashoff number
[D].
Bond number

Answer: Option C

Explanation:

No answer description available for this question.

Read More In natural convection heat transfer, the correlating parameter is the
CHEMICAL ENGINEERING | Fluid Mechanics

A bed of spherical particles (specific gravity 2.5) of uniform size 1500 μm is 0.5 m in diameter and 0.5 m high. In packed bed state, the porosity may be taken as 0.4. Ergun’s equation for the above fluid-particle system (in SI units) is given below : Δ P/L = 375 x 103 VOM + 10.94 x 106 V2OM (SI units) If water is to be used as the fluidising medium, the minimum fluidisation velocity, VOM is

Question: A bed of spherical particles (specific gravity 2.5) of uniform size 1500 μm is 0.5 m in diameter and 0.5 m high. In packed bed state, the porosity may be taken as 0.4. Ergun’s equation for the above fluid-particle system (in SI units) is given below : Δ P/L = 375 x 103 VOM + 10.94 x 106 V2OM (SI units) If water is to be used as the fluidising medium, the minimum fluidisation velocity, VOM is
[A].

12 mm/s
[B].
16 mm/s
[C].
24 mm/s
[D].
28 mm/s

Answer: Option B

Explanation:

No answer description available for this question.

Read More A bed of spherical particles (specific gravity 2.5) of uniform size 1500 μm is 0.5 m in diameter and 0.5 m high. In packed bed state, the porosity may be taken as 0.4. Ergun’s equation for the above fluid-particle system (in SI units) is given below : Δ P/L = 375 x 103 VOM + 10.94 x 106 V2OM (SI units) If water is to be used as the fluidising medium, the minimum fluidisation velocity, VOM is
CHEMICAL ENGINEERING | Chemical Engineering Thermodynamics

After throttling, gas temperature

Question: After throttling, gas temperature
[A].

decreases
[B].
increases
[C].
remains same
[D].
may increase or decrease ; depends on the nature of the gas

Answer: Option A

Explanation:

No answer description available for this question.

Read More After throttling, gas temperature
CHEMICAL ENGINEERING | Chemical Process

Chloramines are used in water treatment for

Question: Chloramines are used in water treatment for
[A].

disinfection and control of taste & odour.
[B].
corrosion control.
[C].
removing turbidity.
[D].
control of bacteria.

Answer: Option A

Explanation:

No answer description available for this question.

Read More Chloramines are used in water treatment for

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