MCQOPTIONS
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MCQOPTIONS
This section includes 13 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. |
Power to weight ratio for high performance cars can range up to _______ |
| A. | 150 |
| B. | 190 |
| C. | 230 |
| D. | 280 |
| Answer» D. 280 | |
| 2. |
Gradient resistance for a vehicle depends on which of the following factors? |
| A. | Weight of the vehicle |
| B. | Size of the vehicle |
| C. | Width of tyres |
| D. | Speed of the vehicle |
| Answer» B. Size of the vehicle | |
| 3. |
The value of coefficient of air resistance for average cars is approximately equal to __________ |
| A. | 0.32 |
| B. | 0.032 |
| C. | 0.0032 |
| D. | 1.32 |
| Answer» D. 1.32 | |
| 4. |
If k is coefficient of air resistance, A is frontal area projected by the vehicle in square metres and V is vehicle speed(in km/h) then the expession for air resistance A.R on the vehicle is _________ |
| A. | A.R = k*A*V^2 |
| B. | A.R = k*A*V^3 |
| C. | A.R = 2k*A*V |
| D. | A.R = k*A*V |
| Answer» B. A.R = k*A*V^3 | |
| 5. |
Wind or air resistance depends on which of the following factors? |
| A. | Shape and size of vehicle body |
| B. | Air velocity |
| C. | Speed of vehicle |
| D. | All of the mentioned |
| Answer» E. | |
| 6. |
For an average type of road surface what percentage of vehicle s weight constitutes rolling resistance? |
| A. | 5 to 10% |
| B. | 1 to 2% |
| C. | 2 to 5% |
| D. | 0 to 3% |
| Answer» C. 2 to 5% | |
| 7. |
Rolling resistance doesnot depend on which of the following factors? |
| A. | Load on each road wheel |
| B. | Radius of driving wheel |
| C. | Wheel inflation pressure |
| D. | Nature of road surface |
| Answer» C. Wheel inflation pressure | |
| 8. |
The force that opposes the motion of a vehicle is _______ |
| A. | Rolling resistance |
| B. | Gradient resistance |
| C. | Wind or air resistance |
| D. | All of the mentioned |
| Answer» E. | |
| 9. |
Which of these is not a power loss which takes place between engine and driving wheel? |
| A. | Power loss due to friction of piston bearings and gears |
| B. | Power loss from clutch to drive wheel due to friction of various parts |
| C. | Transmission line loss |
| D. | None of the mentioned |
| Answer» E. | |
| 10. |
If V is vehicle speed(in metres/min) and R is radius of driving wheel(in metres) then the rpm of the driving wheel is given by _______ |
| A. | rpm = V/2 R |
| B. | rpm = 2 V/R |
| C. | rpm = R/V |
| D. | rpm = V/R |
| Answer» B. rpm = 2 V/R | |
| 11. |
The torque available at the contact between road and driving wheel is called _________ |
| A. | Brake power |
| B. | Friction power |
| C. | Tractive effort |
| D. | Engine torque |
| Answer» D. Engine torque | |
| 12. |
If T is torque(in Nm) and N is speed(in rpm) then the required expression for Brake power B.P in kWs is _________ |
| A. | 2 NT/6000 |
| B. | 2 NT/60000 |
| C. | NT/6000 |
| D. | NT/60000 |
| Answer» C. NT/6000 | |
| 13. |
What is the power delivered by the engine to the crankshaft called? |
| A. | Shaft power |
| B. | Horse power |
| C. | Brake power |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |