MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Automobile Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The two-stroke engine is easy to manufacture. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
For two-stroke SI engine, the scavenging efficiency is 0.5, cylinder volume of 1200 cc and the scavenging density is 1.3 kg/m3. What is the mass flow rate of air per cycle? |
| A. | 0.00072 kg/cycle |
| B. | 0.00076 kg/cycle |
| C. | 0.00074 kg/cycle |
| D. | 0.00084 kg/cycle |
| Answer» B. 0.00076 kg/cycle | |
| 3. |
What is the scavenging efficiency for the perfect mixing if the delivery ratio is 1.5? |
| A. | 80.73% |
| B. | 81.73% |
| C. | 82.73% |
| D. | 84.73% |
| Answer» C. 82.73% | |
| 4. |
What is the excess air factor in the case of a two-stroke engine if the delivery ratio is 1.7? |
| A. | 1.0 |
| B. | 0.8 |
| C. | 0.7 |
| D. | 0.9 |
| Answer» D. 0.9 | |
| 5. |
What is the delivery ratio of the crankcase scavenged engine? |
| A. | Greater than 1 |
| B. | Less than 1 |
| C. | Equal to 1 |
| D. | Greater than 2 |
| Answer» D. Greater than 2 | |
| 6. |
How much power will two-stroke engine of the same size as the four-stroke engine develop at the same speed? |
| A. | Four times the power |
| B. | Twice the power |
| C. | Half the power |
| D. | Same power |
| Answer» C. Half the power | |
| 7. |
Which method of scavenging is used in two-wheelers without deflector type piston? |
| A. | Cross scavenging |
| B. | Reverse flow scavenging |
| C. | Uniform scavenging |
| D. | Loop scavenging |
| Answer» B. Reverse flow scavenging | |
| 8. |
Which of the following is the most perfect method of scavenging? |
| A. | Reverse flow scavenging |
| B. | Loop scavenging |
| C. | Uniform scavenging |
| D. | Cross scavenging |
| Answer» D. Cross scavenging | |
| 9. |
Which of the following is not an advantage of a two-stroke engine? |
| A. | Not valves |
| B. | Lighter flywheel |
| C. | More uniform torque |
| D. | No lubrication system |
| Answer» E. | |
| 10. |
How can a two-stroke engine identify by? |
| A. | Piston size |
| B. | Absence of valves |
| C. | Cooling system |
| D. | Lubrication system |
| Answer» C. Cooling system | |