MCQOPTIONS
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MCQOPTIONS
This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Instrumentation Transducers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
If the axes of the rolling of the ship and of the stabilizing rotor are parallel, it will result in |
| A. | A higher bow and lower stern |
| B. | A lower bow and higher stern |
| C. | Turning towards left |
| D. | No gyroscopic effect |
| Answer» E. | |
| 2. |
A four-wheeler automobile is taking a turn towards left. Consider W = Weight of the vehicle,\(\frac{Q}{2}\) = Magnitude of the reaction due to gyroscopic effect on inner or outer wheels, \(\frac{P}{2}\) = Magnitude of the reaction due to centrifugal effect on inner or outer wheels. The total vertical reaction at each inner wheel is: |
| A. | \(\frac{W}{4} + \frac{P}{4} + \frac{Q}{4}\) |
| B. | \(\frac{W}{4} + \frac{P}{4} - \frac{Q}{4}\) |
| C. | \(\frac{W}{4} - \frac{P}{4} + \frac{Q}{4}\) |
| D. | \(\frac{W}{4} - \frac{P}{4} - \frac{Q}{4}\) |
| Answer» E. | |
| 3. |
A rotating mass having a moment of inertia of 30 kgm2 rotates at 800 rpm and is travelling in a curve of a 170-metre radius at a speed of 240 km/hr. It will experience a gyroscopic reaction of _____. |
| A. | 10 m kgf |
| B. | 100 m kgf |
| C. | 1000 m kgf |
| D. | 10000 m kgf |
| Answer» C. 1000 m kgf | |
| 4. |
A disc spinning on its axis at 20 rad/s will undergo precession when a torque 100 N-m is applied about an axis normal to it. If the mass moment of inertia is 1 kg-m2, then the angular velocity of precession is? |
| A. | 0.2 rad/s |
| B. | 5 rad/s |
| C. | 10 rad/s |
| D. | 200 rad/s |
| Answer» C. 10 rad/s | |
| 5. |
Net reaction of ground on wheels due to gyroscopic couple, due to wheels and the dead weight and centrifugal force of a vehicle negotiating a curve is |
| A. | increased on inner wheels and decreased on outer wheels |
| B. | decreased on inner wheels and increased on outer wheels |
| C. | decreased on all wheels |
| D. | increased on all wheels |
| Answer» C. decreased on all wheels | |
| 6. |
If the propeller of an aeroplane rotates clockwise when viewed from the rear and the aeroplane takes a right turn, the gyroscopic effect will |
| A. | tend to raise the tail and depress the nose |
| B. | tend to raise the nose and depress the tail |
| C. | tilt the aeroplane about spin axis |
| D. | have no effect |
| Answer» B. tend to raise the nose and depress the tail | |
| 7. |
INTEGRATING_TYPE_GYROSCOPE_HAS_HIGH_SENSITIVITY_DUE_TO_______________?$ |
| A. | High H<sub>s</sub> |
| B. | Lower damping coefficient |
| C. | Both high Ha and lower damping coefficient |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 8. |
Rate_gyroscope_is_a______________$ |
| A. | Zero order system |
| B. | First order system |
| C. | Second order system |
| D. | Third order system |
| Answer» D. Third order system | |
| 9. |
Which of the following represents integrating type gyroscope? |
| A. | Zero order system |
| B. | First order system |
| C. | Second order system |
| D. | Third order system |
| Answer» C. Second order system | |
| 10. |
Which of the following represents characteristic of a rate gyro? |
| A. | More sensitive |
| B. | Soft spring of lower value for K |
| C. | High angular momentum |
| D. | All of the mentioned |
| Answer» E. | |
| 11. |
Which of the following represents condition for ideal gyroscope? |
| A. | Infinite drift of spin axis |
| B. | Infinite speed for gyro meter |
| C. | Very low drift of spin axis |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 12. |
Increase in angular momentum decreases error. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 13. |
Turning of rotor about a third axis when a torque transverse to spin axis is known as ____________ |
| A. | Transverse shear |
| B. | Transverse stress |
| C. | Precession |
| D. | Face shear |
| Answer» D. Face shear | |
| 14. |
Which of the following represents angular momentum of gyro wheel? |
| A. | j<sub>s</sub>Ω<sub>s</sub> |
| B. | j<sub>s</sub> |
| C. | j<sub>s</sub>/Ω<sub>s</sub> |
| D. | None of the mentioned |
| Answer» B. j<sub>s</sub> | |
| 15. |
Gymbels are used for _____________ |
| A. | Improving rotational speed |
| B. | Supporting gyro wheel |
| C. | As damping agent |
| D. | None of the mentioned |
| Answer» C. As damping agent | |
| 16. |
Axis of rotation of wheel in gyroscope is called ____________ |
| A. | Spin axis |
| B. | Vertical axis |
| C. | Horizontal axis |
| D. | Angular axis |
| Answer» B. Vertical axis | |