MCQOPTIONS
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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 m<sup>3</sup> |
| B. | 1.5646 m<sup>3</sup> |
| C. | 1.7643 m<sup>3</sup> |
| D. | 1.9643 m<sup>3</sup> |
| Answer» B. 1.5646 m<sup>3</sup> | |
| 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 m<sup>3</sup> and 12.526 kg |
| B. | 12.1 m<sup>3</sup> and 15.5 kg |
| C. | 11.9 m<sup>3</sup> and 13.378 kg |
| D. | 12.0 m<sup>3</sup> and 14.965 kg |
| Answer» D. 12.0 m<sup>3</sup> 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. | CH<sub>4</sub> + 2O<sub>2</sub> CO<sub>2</sub> + 2H<sub>2</sub>O |
| B. | 2C + O<sub>2</sub> 2CO |
| C. | N<sub>2</sub> + O<sub>2</sub> 2NO |
| D. | 2H<sub>2</sub> + O<sub>2</sub> 2H<sub>2</sub>O |
| Answer» D. 2H<sub>2</sub> + O<sub>2</sub> 2H<sub>2</sub>O | |
| 5. |
What is the absolute temperature of gases at N.T.P.? |
| A. | -273<sup>0</sup>C |
| B. | 273<sup>0</sup>C |
| C. | -273 K |
| D. | 273 K |
| Answer» B. 273<sup>0</sup>C | |
| 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 | |