

MCQOPTIONS
Saved Bookmarks
This section includes 10 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. |
PVDF_IS_________________MATERIAL.?$ |
A. | Piezoelectric |
B. | Magnetostrictive |
C. | Thermoelectric |
D. | Electrostrictive |
Answer» B. Magnetostrictive | |
2. |
SNR_is_signal_to_noise_ratio.$ |
A. | True |
B. | False |
Answer» B. False | |
3. |
Copolymer of PVDF have lower temperature capacity than PVDF? |
A. | True |
B. | False |
Answer» C. | |
4. |
Thickness of PVDF film will be_______________ |
A. | Less than 100um |
B. | Less than 10nm |
C. | Less than 100mm |
D. | Less than 1cm |
Answer» B. Less than 10nm | |
5. |
PVDF inultrasonic scanning technique can be used at temperature _________________ |
A. | Less than 20<sup>0</sup>C |
B. | Less than 70<sup>0</sup>C |
C. | Greater than 100<sup>0</sup>C |
D. | None of the mentioned |
Answer» C. Greater than 100<sup>0</sup>C | |
6. |
By placing sensor nearer to AE, SNR _____________ |
A. | Increases |
B. | Decreases |
C. | Doubles |
D. | No change |
Answer» B. Decreases | |
7. |
Acoustic emission signals will be of the form ______________ |
A. | Discrete transients |
B. | Quasi continuous |
C. | Discrete or quasi continuous |
D. | None of the mentioned |
Answer» D. None of the mentioned | |
8. |
Which of the following causes acoustic emission in machineries? |
A. | Friction |
B. | Vibration |
C. | Turbulance |
D. | All of the mentioned |
Answer» E. | |
9. |
Phenomenon of producing sound under mechanical stress is called________________ |
A. | Magnetostriction |
B. | Acoustiction |
C. | Electrostriction |
D. | Acoustic emission |
Answer» E. | |
10. |
AFM stands for ________________ |
A. | Auto focusing microscope |
B. | Antenna focusing microscope |
C. | Atomic force microscope |
D. | None of the mentioned |
Answer» D. None of the mentioned | |