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 cold start injector provides a lean air-fuel ratio. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Which of the following is not the function of the fuel injection system? |
| A. | Time the fuel injection |
| B. | Filter the fuel |
| C. | Atomize the fuel to fine particles |
| D. | Control the engine speed |
| Answer» E. | |
| 3. |
Which of the following is not the part of the injector assembly? |
| A. | Needle valve |
| B. | Nozzle |
| C. | Diaphragm |
| D. | Compressor spring |
| Answer» D. Compressor spring | |
| 4. |
What is the spray cone angle in the Pintle nozzle? |
| A. | 60° |
| B. | 15° |
| C. | 25° |
| D. | 45° |
| Answer» B. 15° | |
| 5. |
A six-cylinder, four-stroke diesel engine develops a power of 200 kW at 2000 revolution per minute. The brake specific fuel consumption is 0.3 kg / kW – h. What is the time for injection if the injection takes place over 20° crank angle? |
| A. | 1 millisecond |
| B. | 2 milliseconds |
| C. | 1.5 milliseconds |
| D. | 1.66 milliseconds |
| Answer» E. | |
| 6. |
In pneumatic governor, which of the following control the amount of vacuum applied to the diaphragm? |
| A. | Spring |
| B. | Accelerator pedal |
| C. | Butterfly valve |
| D. | Lever |
| Answer» B. Accelerator pedal | |
| 7. |
What is the range of pressure is achieved in the injection pump? |
| A. | 120 – 200 bar |
| B. | 10 – 20 bar |
| C. | 400 – 500 bar |
| D. | < 10bar |
| Answer» B. 10 – 20 bar | |
| 8. |
Which of the following is the port fuel – injection system? |
| A. | D – MPFI |
| B. | L – MPFI |
| C. | GDI |
| D. | TBI |
| Answer» C. GDI | |
| 9. |
At which stroke the fuel is injected in the CI engine? |
| A. | Suction stroke |
| B. | Compression stroke |
| C. | Expansion stroke |
| D. | Exhaust stroke |
| Answer» C. Expansion stroke | |
| 10. |
In which of the following fuel injector is used? |
| A. | Compression-ignition engines |
| B. | Spark-ignition engines |
| C. | Steam engines |
| D. | Sterling engines |
| Answer» B. Spark-ignition engines | |