MCQOPTIONS
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MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Thermodynamics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Mechanical efficiency of engine is given by |
| A. | IP/BP |
| B. | 1/(BP*IP) |
| C. | (BP*IP) |
| D. | BP/IP |
| Answer» E. | |
| 2. |
The power available at crankshaft is always _____ indicated power. |
| A. | more |
| B. | less |
| C. | equal |
| D. | none of the mentioned |
| Answer» C. equal | |
| 3. |
For a two-stroke engine, work done in one minute is given by |
| A. | PmALN |
| B. | PmALN/2 |
| C. | 2PmALN |
| D. | none of the mentioned |
| Answer» B. PmALN/2 | |
| 4. |
For Pm=(Ad/Ld)*K, which of the following is true? |
| A. | Pm=mean effective pressure |
| B. | Ad and Ld are area of diagram and length of diagram respectively |
| C. | K id the indicator spring constant |
| D. | all of the mentioned |
| Answer» E. | |
| 5. |
The area of the indicator diagram represents the magnitude of the |
| A. | net heat transfer by the system |
| B. | net work done on the system |
| C. | net work done by the system |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 6. |
For a constant volume process, work done is |
| A. | zero |
| B. | p*(V2-V1) |
| C. | p1*V1*ln(V2/V1) |
| D. | none of the mentioned |
| Answer» B. p*(V2-V1) | |