MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Applied Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Modification of the dulong s formula can be done by considering the ___________ |
| A. | latent heat |
| B. | heat |
| C. | fuel state |
| D. | liquid fuels |
| Answer» B. heat | |
| 2. |
The dulong s formula is not applicable for __________ |
| A. | solid fuel |
| B. | gaseous fuel |
| C. | liquid fuel |
| D. | any fuel |
| Answer» C. liquid fuel | |
| 3. |
4.A formula giving the gross heating value of coal in terms of the weight fractions of carbon, hydrogen, oxygen and sulphur from the _________ |
| A. | ultimate analysis |
| B. | proximate analysis |
| C. | distillation |
| D. | filtration |
| Answer» B. proximate analysis | |
| 4. |
A coal has the following composition by weight: C=90%, O=4%, N=1%, S=0.5% and ash=5%.The NCV of the fuel was found to be 8480cal/g. Calculate the percentage of hydrogen and HCV of the fuel. |
| A. | H=4.21%, HCV=8621.80cal/g |
| B. | H=4.521%, HCV=8221.80cal/g |
| C. | H=4.686%, HCV=8727.37cal/g |
| D. | H=4.1%, HCV=8221.37cal/g |
| Answer» D. H=4.1%, HCV=8221.37cal/g | |
| 5. |
Calculate the net calorific value of a coal sample having the following composition:C=80%, H=5%, O=4%, N=3%, S=3.5% and ash=5%. |
| A. | 7251.8cal/g |
| B. | 7780.5cal/g |
| C. | 7621.5cal/g |
| D. | 7830.75cal/g |
| Answer» E. | |