Instrumentation Transducers Questions and Answers – Nano Instrumentation

This set of Instrumentation Transducers Multiple Choice Questions & Answers (MCQs) focuses on “Nano Instrumentation”.

1. AFM stands for ________________
a) Auto focusing microscope
b) Antenna focusing microscope
c) Atomic force microscope
d) None of the mentioned
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2. Phenomenon of producing sound under mechanical stress is called________________
a) Magnetostriction
b) Acoustiction
c) Electrostriction
d) Acoustic emission
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3. Which of the following causes acoustic emission in machineries?
a) Friction
b) Vibration
c) Turbulance
d) All of the mentioned
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4. Acoustic emission signals will be of the form ______________
a) Discrete transients
b) Quasi continuous
c) Discrete or quasi continuous
d) None of the mentioned
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5. By placing sensor nearer to AE, SNR _____________
a) Increases
b) Decreases
c) Doubles
d) No change
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6. PVDF inultrasonic scanning technique can be used at temperature _________________
a) Less than 20⁰C
b) Less than 70⁰C
c) Greater than 100⁰C
d) None of the mentioned
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7. Thickness of PVDF film will be_______________
a) Less than 100um
b) Less than 10nm
c) Less than 100mm
d) Less than 1cm
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8. Copolymer of PVDF has lower temperature capacity than PVDF.
a) True
b) False
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9. PVDF is _______________ material.
a) Piezoelectric
b) Magnetostrictive
c) Thermoelectric
d) Electrostrictive
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10. SNR is signal to noise ratio.
a) True
b) False
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Sanfoundry Global Education & Learning Series – Instrumentation Transducers.

To practice all areas of Instrumentation Transducers, here is complete set of 1000+ Multiple Choice Questions and Answers.