MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Farm Machinery knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
An IC engine consumes high speed diesel oil at the rate of 0.5 kg/h. Calculate the power of the engine. |
| A. | 10 KW |
| B. | 15.45 KW |
| C. | 6.15 KW |
| D. | 22.15 KW |
| Answer» D. 22.15 KW | |
| 2. |
Find the weight of air for complete combustion of 10 l of petrol, assuming air contains 22.7% |
| A. | 113.66 kg |
| B. | 171 kg |
| C. | 450.12 kg |
| D. | 650 kg |
| Answer» B. 171 kg | |
| 3. |
A four-stroke diesel engine operating at 800 rpm uses 0.10 kg of fuel in 4 minutes while developing a torque of 70 Nm. Calculate brake specific fuel consumption |
| A. | 0.262 kg/kwh |
| B. | 0.256 kg/kwh |
| C. | 0.242 kg/kwh |
| D. | 0.236 kg/kwh |
| Answer» C. 0.242 kg/kwh | |
| 4. |
The formula of API degree is _______ |
| A. | \(\frac{141.5}{specific\, gravity \,of \,oil\, at\, 60℉}\) – 13.15 |
| B. | Specific gravity of oil-13.5 |
| C. | \(\frac{141.5}{specific\, gravity \,of\, oil}\)+131.5 |
| D. | \(\frac{specifc gravity of oil+41.31}{141.5} \) |
| Answer» B. Specific gravity of oil-13.5 | |
| 5. |
Detonation refers to ____________ |
| A. | Engine knocking |
| B. | Air locking |
| C. | Poor ignition |
| D. | Fuel properties |
| Answer» B. Air locking | |
| 6. |
Diesel fuel are rated by ____________ |
| A. | Octane number |
| B. | Cetane number |
| C. | Calorific value |
| D. | Engine efficiency |
| Answer» C. Calorific value | |
| 7. |
The knock characteristics of fuel is indicated by ____________ |
| A. | Cetane number |
| B. | Octane number |
| C. | Calorific value |
| D. | Fuel consumption |
| Answer» C. Calorific value | |
| 8. |
Octane number is associated to ____________ |
| A. | Fuel consumption |
| B. | Ignition quality of fuel |
| C. | Fuel supply system |
| D. | Fuel delivery |
| Answer» C. Fuel supply system | |
| 9. |
In engine cylinder, the petrol is vaporised ____________ |
| A. | Quicker than HSD |
| B. | Quicker than water |
| C. | Slow than HSD |
| D. | Slow than water |
| Answer» B. Quicker than water | |
| 10. |
Volatility of fuel affects the ____________ |
| A. | Engine speed |
| B. | Efficiency |
| C. | Consumption rate |
| D. | Engine power |
| Answer» B. Efficiency | |
| 11. |
Vapor lock is associated to the ____________ |
| A. | Cooling system of engine |
| B. | Ignition system of engine |
| C. | Fuel supply system of engine |
| D. | Governor system of engine |
| Answer» D. Governor system of engine | |
| 12. |
Quality of the fuel is judged by its ____________ |
| A. | Calorific value |
| B. | Power conversion |
| C. | Loss to cool the engine |
| D. | Consumption |
| Answer» B. Power conversion | |
| 13. |
Specific gravity of LDO is ____________ |
| A. | 0.1 |
| B. | 1.325 |
| C. | 0.920 |
| D. | 1.05 |
| Answer» D. 1.05 | |
| 14. |
The common fuels for I.C. engines are _____________ |
| A. | Petrol and diesel |
| B. | Petrol, power kerosene, light speed diesel and high-speed diesel |
| C. | Kerosene and diesel |
| D. | Petrol and kerosene |
| Answer» C. Kerosene and diesel | |