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This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Chemistry knowledge and support exam preparation. Choose a topic below to get started.
1. |
Which kind of burners are used for efficient combustion of liquid fuels? |
A. | Wesman burner |
B. | Dual-fuel burner |
C. | Oil burners |
D. | Pressure jet burner |
Answer» B. Dual-fuel burner | |
2. |
Which kind of liquid fuels are risky to store? |
A. | Flammable and volatile |
B. | Inflammable and volatile |
C. | Flammable and non-volatile |
D. | Inflammable and non-volatile |
Answer» C. Flammable and non-volatile | |
3. |
What happens when liquid fuels evaporate? |
A. | It increases its calorific value |
B. | It reduces the impurities present in it |
C. | It increase the ash content present in it |
D. | It makes losses and leakages in the container |
Answer» E. | |
4. |
Liquid fuel produces _____________ odours on incomplete combustion. |
A. | Pleasant |
B. | Unpleasant |
C. | No odours |
D. | Fruity |
Answer» C. No odours | |
5. |
Which of the following fuel does not requires excess air for its combustion? |
A. | Coal |
B. | Cow-dunk cake |
C. | Diesel |
D. | Charcoal |
Answer» D. Charcoal | |
6. |
Which type of combustion is seen in liquid fuel? |
A. | Uniform and complete combustion |
B. | Non-uniform and complete combustion |
C. | Uniform and incomplete combustion |
D. | Non-uniform and incomplete combustion |
Answer» B. Non-uniform and complete combustion | |
7. |
Liquid fuels leave ash content after burning. |
A. | True |
B. | False |
Answer» C. | |
8. |
Which of the following fuel requires less storage space? |
A. | Methane gas |
B. | Coal |
C. | Cow dunk |
D. | Kerosene |
Answer» E. | |
9. |
In which processes does the low boiling fractions of petroleum are used? |
A. | Petrol engines |
B. | Diesel engines |
C. | Oil fired furnaces |
D. | Kerosene engines |
Answer» B. Diesel engines | |
10. |
How can we obtain liquid coal synthetically? |
A. | Carbonisation of coal |
B. | Hydrogenation of coal |
C. | By heating of coal |
D. | By cooling of coal |
Answer» C. By heating of coal | |