MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Ic Engine knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
ADVANTAGE_OF_FUEL_INJECTION_IN_SI_ENGINE_IS?$ |
| A. | low initial cost |
| B. | low maintenance requirements |
| C. | increased volumetric efficiency |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 2. |
FUEL_IS_INJECTED_IN_A_FOUR-STROKE_CI_ENGINE?$ |
| A. | at the end of suction stroke |
| B. | at the end of expansion stroke |
| C. | at the end of compression stroke |
| D. | at the end of exhaust stroke |
| Answer» D. at the end of exhaust stroke | |
| 3. |
A six cylinder, four-stroke diesel engine develops 125 kW at 3000 rpm. Its brake specific fuel consumption is 200gm/kW h. Calculate the quantity of fuel to be injected per cycle per cylinder. Specific gravity of the fuel may be taken as 0.85.$ |
| A. | 0.0545 cc/cycle |
| B. | 0.545 cc/ cycle |
| C. | 5.45 cc/cycle |
| D. | none of the mentioned |
| Answer» B. 0.545 cc/ cycle | |
| 4. |
Fuel filters do not use generall? |
| A. | oil |
| B. | paper |
| C. | cloth |
| D. | felt |
| Answer» C. cloth | |
| 5. |
Fuel injection pressure in solid injection system is around |
| A. | < 10 bar |
| B. | 10-20 bar |
| C. | 30-50 bar |
| D. | 200-250 bar |
| Answer» E. | |
| 6. |
Commonly used injection system in automobiles is |
| A. | air injection |
| B. | solid injection |
| C. | combination of (a) and (b) |
| D. | none of the mentioned |
| Answer» C. combination of (a) and (b) | |
| 7. |
Advantage of air injection system is |
| A. | cheaper fuels can be used |
| B. | mep is high |
| C. | fine atomization and distribution of the fuel |
| D. | all of the mentioned |
| Answer» E. | |
| 8. |
Fuel injector is used for |
| A. | Gas engines |
| B. | CI engines |
| C. | SI engines |
| D. | None of the mentioned |
| Answer» C. SI engines | |
| 9. |
In an air injection system, __________ is forced into the cylinder by means of compressed air. |
| A. | air |
| B. | fuel |
| C. | water |
| D. | none of the mentioned |
| Answer» C. water | |
| 10. |
The requirements met by the injection system are: |
| A. | Proper atomization of fuel into very fine droplets |
| B. | Proper spray pattern to ensure rapid mixing of fuel and air |
| C. | Uniform distribution of fuel droplets throughout the combustion chamber |
| D. | All of the mentioned |
| Answer» E. | |
| 11. |
In a fuel-injection system, the amount of fuel delivered into the air stream going to the engine is controlled by a pump which forces the fuel under pressure. |
| A. | True |
| B. | False |
| Answer» B. False | |