MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
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. |
The % analysis by volume of product gas is H2 – 18.3%, CH2 – 3.4%, CO – 25.4%, CO2 – 5.1% and N2 – 47.8%. Calculate the volume of air required m3 of the gas? |
| A. | 1.3643 m3 |
| B. | 1.5646 m3 |
| C. | 1.7643 m3 |
| D. | 1.9643 m3 |
| Answer» B. 1.5646 m3 | |
| 2. |
Find the volume of air required for complete combustion of 1 m3 of acetylene and the weight of air necessary for the combustion of 1 kg of fuel? |
| A. | 10.6 m3 and 12.526 kg |
| B. | 12.1 m3 and 15.5 kg |
| C. | 11.9 m3 and 13.378 kg |
| D. | 12.0 m3 and 14.965 kg |
| Answer» D. 12.0 m3 and 14.965 kg | |
| 3. |
Analysis for combustion of solids is always done on weight basis. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
Which of the following reaction is not involved in combustion calculations? |
| A. | CH4 + 2O2 → CO2 + 2H2O |
| B. | 2C + O2 → 2CO |
| C. | N2 + O2 → 2NO |
| D. | 2H2 + O2 → 2H2O |
| Answer» D. 2H2 + O2 → 2H2O | |
| 5. |
What is the absolute temperature of gases at N.T.P.? |
| A. | -2730C |
| B. | 2730C |
| C. | -273 K |
| D. | 273 K |
| Answer» B. 2730C | |
| 6. |
Which of the following laws can be used for calculating the volume of gas at a given temperature and pressure? |
| A. | Boyle’s and Avogadro law |
| B. | Charle’s and Avogadro law |
| C. | Charle’s and Dalton’s law |
| D. | Boyle’s and Charle’s law |
| Answer» E. | |
| 7. |
What is the gram molecular volume of all gases at normal temperature pressure? |
| A. | 2.24 L |
| B. | 22.4 L |
| C. | 224 L |
| D. | 2240 L |
| Answer» C. 224 L | |
| 8. |
Which of the following is the ideal gas equation for 1 mol of gas? |
| A. | PV = nRT |
| B. | PV = 6.022nRT |
| C. | PR = nVT |
| D. | PV = RT |
| Answer» E. | |
| 9. |
Which of the following cannot be calculated in combustion calculation? |
| A. | Calorific value of fuel |
| B. | Composition of fuel |
| C. | Composition of the flue gas |
| D. | Nature of combustion |
| Answer» B. Composition of fuel | |
| 10. |
Which of the following law is not used in combustion calculation? |
| A. | The law of conservation of mass |
| B. | The law of definite proportion |
| C. | The law of multiple proportion |
| D. | The law of conservation of energy |
| Answer» D. The law of conservation of energy | |