Explore topic-wise MCQs in Chemical Process Calculation.

This section includes 17 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Process Calculation knowledge and support exam preparation. Choose a topic below to get started.

1.

Ethane is burnt with 50% of excess air, what is the percentage of CO2 in the products?

A. 11.11%
B. 36.36%
C. 66.66%
D. 72.72%
Answer» C. 66.66%
Discussion
2.

The amount of air in excess of the theoretical air required for complete combustion is

A. Theoretical Air
B. Excess Air
C. Partial Air
D. None of the mentioned
Answer» C. Partial Air
Discussion
3.

Two statements are given as belowA. A fuel is producing some CO from the carbon source is the partial combustion of that fuel.B. CO does not produce as much energy as would be in the case of CO2 formation in a combustion process.

A. Both statements are true
B. Both statements are false
C. A is correct and B is false
D. B is correct and A is false
Answer» B. Both statements are false
Discussion
4.

All the gases resulting from a combustion process, not including the water vapour is known as

A. Flue gas
B. Stack gas
C. Orsat analysis
D. None of the mentioned
Answer» D. None of the mentioned
Discussion
5.

Ethane is burnt with 150% of excess air then what is the percentage of O2 in the products?

A. 12.5%
B. 33.3%
C. 45.4%
D. 52.9%
Answer» E.
Discussion
6.

144 grams of C5H12 is burnt with 2 molesO2, and 1 mole of CO2 is produced. What is the percentage of excess O2?

A. 25%
B. 50%
C. 75%
D. 100%
Answer» B. 50%
Discussion
7.

ETHANE_IS_BURNT_WITH_50%_OF_EXCESS_AIR,_WHAT_IS_THE_PERCENTAGE_OF_CO2_IN_THE_PRODUCTS??$

A. 11.11%
B. 36.36%
C. 66.66%
D. 72.72%
Answer» C. 66.66%
Discussion
8.

THE_AMOUNT_OF_AIR_IN_EXCESS_OF_THE_THEORETICAL_AIR_REQUIRED_FOR_COMPLETE_COMBUSTION_IS?$

A. Theoretical Air
B. Excess Air
C. Partial Air
D. None of the mentioned
Answer» C. Partial Air
Discussion
9.

Ethane_is_burnt_with_50%_of_excess_air,_what_is_the_percentage_of_CO2_in_the_products?$

A. 11.11%
B. 36.36%
C. 66.66%
D. 72.72%
Answer» C. 66.66%
Discussion
10.

The amount of air in excess of the theoretical air required for complete combustion i?

A. Theoretical Air
B. Excess Air
C. Partial Air
D. None of the mentioned
Answer» C. Partial Air
Discussion
11.

The amount of air required to be brought in to the process for complete combustion is

A. Theoretical Air
B. Excess Air
C. Partial Air
D. None of the mentioned
Answer» B. Excess Air
Discussion
12.

Two statements are given as below

A.
B.
Answer» B.
Discussion
13.

A complete combustion reaction is

A. Fuel producing CO<sub>2</sub>
B. Fuel producing CO and C<sub>3</sub>H<sub>8</sub>O
C. Fuel producing CO<sub>2</sub> and C<sub>3</sub>H<sub>8</sub>O
D. Fuel producing CO and C<sub>3</sub>H<sub>8</sub>
Answer» D. Fuel producing CO and C<sub>3</sub>H<sub>8</sub>
Discussion
14.

Ethane is burnt with 150% of excess air then what is the percentage of O2 in the products?

A. 12.5%
B. 33.3%
C. 45.4%
D. 52.9%
Answer» E.
Discussion
15.

All the gases resulting from a combustion process including the water vapour is known as

A. Flue gas
B. Dry basis
C. Orsat analysis
D. None of the mentioned
Answer» B. Dry basis
Discussion
16.

For a combustion system, incorrect statement is

A. Reaction of oxygen with materials containing hydrogen, carbon and sulfur
B. Product gases are such as C<sub>3</sub>H<sub>8</sub>O, CO<sub>2</sub>, CO, SO<sub>2</sub>
C. Most combustion processes use air as the source of oxygen.
D. None of the mentioned
Answer» E.
Discussion
17.

144 grams of C5H12 is burnt with 2 molesO2, and 1 mole of CO2 is produced.

A.
B. 25%
C. 50%
Answer» B. 25%
Discussion