MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Mechatronics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A car moves with a speed of 50 km/hr. What will be the speed of a stationary bicycle parked along the roadside measured by a speed sensor which is placed in the same car? |
| A. | 50 km/hr |
| B. | 60 km/hr |
| C. | 0 km/hr |
| D. | 40 km/hr |
| Answer» B. 60 km/hr | |
| 2. |
A moving platform moves with a speed of 80 km/hr. What will be the speed of a boy who is running on it with a speed of 20 km/hr opposite to the motion of the moving track measured by a speed sensor placed on stationary ground? |
| A. | 50 km/hr |
| B. | 60 km/hr |
| C. | 100 km/hr |
| D. | 160 km/hr |
| Answer» C. 100 km/hr | |
| 3. |
A car moves with a speed of 60 km/hr. What will be the speed of the same car measured by a speed sensor which is placed in a bicycle which is moving with a speed of 12 km/hr in the opposite direction? |
| A. | 60 km/hr |
| B. | 72 km/hr |
| C. | 58 km/hr |
| D. | 48 km/hr |
| Answer» C. 58 km/hr | |
| 4. |
A moving platform moves with a speed of 100 km/hr. What will be the speed of a boy who is running on it with a speed of 10 km/hr along the motion of the moving track measured by a speed sensor placed on stationary ground? |
| A. | 150 km/hr |
| B. | 160 km/hr |
| C. | 110 km/hr |
| D. | 140 km/hr |
| Answer» D. 140 km/hr | |
| 5. |
A car moves with a speed of 30 km/hr. What will be the speed of the same car measured by a speed sensor which is placed in a truck which is moving with a speed of 20 km/hr in the same direction? |
| A. | 30 km/hr |
| B. | 50 km/hr |
| C. | 10 km/hr |
| D. | 0 km/hr |
| Answer» D. 0 km/hr | |
| 6. |
SAW in respect to acoustic wave technology stands for ______ |
| A. | Sound Acoustic Wave |
| B. | Surface Acoustic Wave |
| C. | Simple Acoustic Wave |
| D. | Surface Acoustic Wave |
| Answer» C. Simple Acoustic Wave | |
| 7. |
The distance range of detection of the PIR sensor is ________ |
| A. | 5-10 cm |
| B. | 5-7 m |
| C. | Up to 12 m |
| D. | 5-12 cm |
| Answer» D. 5-12 cm | |
| 8. |
RCWL- 0516 is an example of which type of sensor? |
| A. | Infrared Sensor |
| B. | Microwave Radar Sensor |
| C. | Ultrasonic Sensor |
| D. | Temperature Sensor |
| Answer» C. Ultrasonic Sensor | |
| 9. |
PIR stands for ____ |
| A. | Passive Infrared |
| B. | Pulsating Infrared |
| C. | Pulsating ratio |
| D. | Pulse is radiation |
| Answer» C. Pulsating ratio | |
| 10. |
What is the frequency range of the ultrasonic sound waves used by the ultrasonic sensors? |
| A. | 20000Hz to 25000Hz |
| B. | 25KHz to 50KHz |
| C. | 25Hz to 55Hz |
| D. | 25Hz to 50Hz |
| Answer» C. 25Hz to 55Hz | |
| 11. |
Microwave motion sensors has more area coverage than the PIR sensors. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 12. |
Combined motion sensors are triggered when all the motion sensors detect a motion. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 13. |
Tomographic sensors uses which type of waves for motion detection? |
| A. | Radio waves |
| B. | Ultrasonic waves |
| C. | Infrared waves |
| D. | Microwaves |
| Answer» B. Ultrasonic waves | |
| 14. |
The Samuel motion sensor works on which principle? |
| A. | Hall effect |
| B. | Inductive effect |
| C. | Doppler effect |
| D. | Capacitive Effect |
| Answer» D. Capacitive Effect | |
| 15. |
Which type of lens is generally used in the PIR sensors? |
| A. | Concave lens |
| B. | Convex lens |
| C. | Bifocal lens |
| D. | Fresnel Lens |
| Answer» C. Bifocal lens | |