MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Thermodynamics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
for air is equal to |
| A. | 1.0 |
| B. | 1.2 |
| C. | 1.3 |
| D. | 1.4 |
| Answer» E. | |
| 2. |
The efficiency of Otto cycle is given by (rk is the compression ratio) |
| A. | 1/(rk)^( -1) |
| B. | 1 1/(rk)^( ) |
| C. | 1 1/(rk)^( -1) |
| D. | 1/(rk)^( ) |
| Answer» D. 1/(rk)^( ) | |
| 3. |
The intake and exhaust processes are not considered in the p-V diagram of Otto cycle. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 4. |
The two-stroke engine is ____ the four-stroke engine. |
| A. | more efficient than |
| B. | less efficient than |
| C. | equally efficient to |
| D. | none of the mentioned |
| Answer» C. equally efficient to | |
| 5. |
In a two-stroke engine, |
| A. | the crankcase is sealed |
| B. | the outward motion of piston is used to pressurize the air-fuel mixture |
| C. | the intake and exhaust valves are replaced by opening in lower part of cylinder wall |
| D. | all of the mentioned |
| Answer» E. | |