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This section includes 9 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. |
BAW_STANDS_FOR___________________?$ |
A. | Bulk acoustic wave |
B. | Barrier acoustic wave |
C. | Barrier avoiding wave |
D. | Bulk activated wave |
Answer» B. Barrier acoustic wave | |
2. |
Non_contacting_type_bio_sensors_are_____________$ |
A. | Radiation type |
B. | Electromagnetic type |
C. | Radiation or electromagnetic type |
D. | None of the mentioned |
Answer» D. None of the mentioned | |
3. |
Changes in resonant frequency of QCM is proportional to ____________? |
A. | Mass accumulated in crystal |
B. | Crystal used |
C. | Time of usage |
D. | None of the mentioned |
Answer» B. Crystal used | |
4. |
Magnetic bio sensor is wide used for____________ |
A. | Blood detection |
B. | DNA detection |
C. | ECG detection |
D. | EMG detection |
Answer» C. ECG detection | |
5. |
Which of the following is most preferred? |
A. | QCM and SAW sensor |
B. | QCM and BAW sensor |
C. | QCM |
D. | All of the mentioned |
Answer» B. QCM and BAW sensor | |
6. |
Acoustic wave in QCM meets minimum impedance when thickness of device is __________________ |
A. | Equal to wavelength of acoustic wave |
B. | Product of Half of wavelength of acoustic wave |
C. | Product of quarter of wavelength of acoustic wave |
D. | None of the mentioned |
Answer» C. Product of quarter of wavelength of acoustic wave | |
7. |
Direction of acoustic wave in QCM will be ______________ |
A. | Same as crystal surface |
B. | Opposite to crystal surface |
C. | Perpendicular to crystal surface |
D. | None of the mentioned |
Answer» D. None of the mentioned | |
8. |
Quartz can be used as bio sensors. |
A. | True |
B. | False |
Answer» B. False | |
9. |
SAW stands for ________________ |
A. | Sound actuated wave |
B. | Surface acoustic wave |
C. | Sound activated wave |
D. | Surface activated wave |
Answer» C. Sound activated wave | |