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Limestone powder is injected during pulverised coal burning in boilers to __________ the flue gases.

CHEMICAL ENGINEERING, Environmental Engineering /
Question: Limestone powder is injected during pulverised coal burning in boilers to __________ the flue gases.
[A].

reduce SO2 content in

[B].

catalytically convert SO2 to SO3 in

[C].

increase the dew point of

[D].

none of these.

Answer: Option A

Explanation:

No answer description available for this question.

Limestone powder is injected during pulverised coal burning in boilers to __________ the flue gases. Read More »

CHEMICAL ENGINEERING, Environmental Engineering

Exposure to SO2 containing chimney gases results in the

CHEMICAL ENGINEERING, Environmental Engineering /
Question: Exposure to SO2 containing chimney gases results in the
[A].

reduction in strength of leather & cloth.

[B].

acceleration of corrosion rates of metals.

[C].

increased drying & hardening time of paints.

[D].

all (a), (b)and(c).

Answer: Option D

Explanation:

No answer description available for this question.

Exposure to SO2 containing chimney gases results in the Read More »

CHEMICAL ENGINEERING, Environmental Engineering

For existence of aquatic life in water, the dissolved oxygen content in it, should not be less than __________ ppm.

CHEMICAL ENGINEERING, Environmental Engineering /
Question: For existence of aquatic life in water, the dissolved oxygen content in it, should not be less than __________ ppm.
[A].

10000

[B].

5

[C].

500

[D].

1000

Answer: Option B

Explanation:

No answer description available for this question.

For existence of aquatic life in water, the dissolved oxygen content in it, should not be less than __________ ppm. Read More »

CHEMICAL ENGINEERING, Environmental Engineering

People belonging to lower strata in their moments of distress

Comprehension, Verbal Ability /
Question: People belonging to lower strata in their moments of distress
[A].

remembered the days of glory

[B].

dressed shabbily to earn sympathy

[C].

visited the brick made bridge

[D].

felt ashamed of their failures

Answer: Option C

Explanation:

No answer description available for this question.

People belonging to lower strata in their moments of distress Read More »

Comprehension, Verbal Ability

At a given temperature, K1, K2 and K3 are equilibrium constants for the following reactions 1, 2, 3 respectively.CH4(g) + H2O(g) CO(g) + 3H2(g), CO(g) + H2O(g) CO2(g) + H2(g)CH4(g) + 2H2O(g) CO2(g) + 4H2(g)Then K1, K2 and K3 are related as:

CHEMICAL ENGINEERING, Chemical Reaction Engineering /
Question: At a given temperature, K1, K2 and K3 are equilibrium constants for the following reactions 1, 2, 3 respectively.CH4(g) + H2O(g) CO(g) + 3H2(g), CO(g) + H2O(g) CO2(g) + H2(g)CH4(g) + 2H2O(g) CO2(g) + 4H2(g)Then K1, K2 and K3 are related as:
[A].

K3 = K1.K2

[B].

K3 = (K1.K2)0.5

[C].

K3(K1+K2)/2

[D].

K3 = (K1.K2)2

Answer: Option A

Explanation:

No answer description available for this question.

At a given temperature, K1, K2 and K3 are equilibrium constants for the following reactions 1, 2, 3 respectively.CH4(g) + H2O(g) CO(g) + 3H2(g), CO(g) + H2O(g) CO2(g) + H2(g)CH4(g) + 2H2O(g) CO2(g) + 4H2(g)Then K1, K2 and K3 are related as: Read More »

CHEMICAL ENGINEERING, Chemical Reaction Engineering

The catalytic converter for conversion of SO2 to SO3 by contact process should have a feed with SO2 content between

CHEMICAL ENGINEERING, Chemical Reaction Engineering /
Question: The catalytic converter for conversion of SO2 to SO3 by contact process should have a feed with SO2 content between
[A].

2-5%

[B].

7-10%

[C].

12-15%

[D].

20-25%

Answer: Option B

Explanation:

No answer description available for this question.

The catalytic converter for conversion of SO2 to SO3 by contact process should have a feed with SO2 content between Read More »

CHEMICAL ENGINEERING, Chemical Reaction Engineering

From among the following, choose one which is not an exothermic process.

CHEMICAL ENGINEERING, Chemical Reaction Engineering /
Question: From among the following, choose one which is not an exothermic process.
[A].

Methanol synthesis

[B].

Catalytic cracking

[C].

Ammonia synthesis

[D].

Oxidation of sulphur

Answer: Option B

Explanation:

No answer description available for this question.

From among the following, choose one which is not an exothermic process. Read More »

CHEMICAL ENGINEERING, Chemical Reaction Engineering

In the hydrodealkylation of toluene to benzene, the following reactions occur:C7H8 + H2 C6H6 + CH42C6H6 C12H10 + H2Toluene and hydrogen are fed to a reactor in a molar ratio 1:5.80% of the toluene gets converted and the selectivity of benzene(defined as moles of benzene formed/moles of toluene converted) is 90%. The fractional conversion of hydrogen is

CHEMICAL ENGINEERING, Chemical Reaction Engineering /
Question: In the hydrodealkylation of toluene to benzene, the following reactions occur:C7H8 + H2 C6H6 + CH42C6H6 C12H10 + H2Toluene and hydrogen are fed to a reactor in a molar ratio 1:5.80% of the toluene gets converted and the selectivity of benzene(defined as moles of benzene formed/moles of toluene converted) is 90%. The fractional conversion of hydrogen is
[A].

0.16

[B].

0.144

[C].

0.152

[D].

0.136

Answer: Option B

Explanation:

No answer description available for this question.

In the hydrodealkylation of toluene to benzene, the following reactions occur:C7H8 + H2 C6H6 + CH42C6H6 C12H10 + H2Toluene and hydrogen are fed to a reactor in a molar ratio 1:5.80% of the toluene gets converted and the selectivity of benzene(defined as moles of benzene formed/moles of toluene converted) is 90%. The fractional conversion of hydrogen is Read More »

CHEMICAL ENGINEERING, Chemical Reaction Engineering