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Analytical Instrumentation MCQ Question Set 32
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1. Sound waves are similar to light waves in all aspects.
True
False
all of the above
None of the mentioned
2. SONAR stands for _________
Sound navigation and ranging
Sound number approximation and ranging
Sound nullifying ranging
None of the mentioned
3. Which of the following type sound generators are not possible?
Piezo electric
Magnetostrictive
Both piezo electric and magnetostrictive
None of the mentioned
4. Mosaic regarding sonar is _____
Surface of sonar
Frequency of sound wave
Pattern of vibrating elements
Depth of sea to which it is applicable
5. All elements of sonar are driven electrically.
True
False
all of the above
None of the mentioned
6. Piezo electric materials are well cut for _______
Good dimension
Good coupling coefficient
Compact shape of device
Increasing frequency
7. Which of the following can be used in sonar?
ADP
Rescelle salt
ADP and Roscelle salt
ADP and Roscelle salt in sealed condition
8. Magnetostriction transmitter uses _______
Electrostrictive phenomena
Horizontal vibration of nickel tube
Longitudinal vibration of nickel tube
All of the mentioned
9. OTDR stands for __________
Optical time domain reflectometer
Optical transfer data rate
Optical time data registers
None of the mentioned
10. Which of the following is not correct for fibre optic sensors?
Immune to electro magnetic interference
Immune to radiation hazard
Can be used in harsh environments
None of the mentioned
11. Fluoride glass is used with ______
IR waves
UV rays
Normal light
All of the mentioned
12. Silica glass of hydroxyl concentration can be used for ___________ of wavelength.
100 nm to 250 nm
250 nm to 800 nm
800 nm to 1500 nm
100 nm to 3400 nm
13. General spectral range for silica glass is _______
Less than 200 nm
Between 200 nm to 2200 nm
Between 2000 nm to 5000 nm
Greater than 3000 nm
14. Epoxy material in fibre optics is intended for ______
Better optical properties
Better reflection
Better sealing
Reducing noise
15. Plastics optical cables can be used for ______
Short range
Medium range of distance
Long range of distance
Very high range of distance
16. Which of the following represents loss associated with glass fibres?
3 dB/Km
10 dB/Km
0 dB/Km
50 dB/Km
17. Loss associated with plastic fibre is less than glass fibres.
True
False
all of the above
None of the mentioned
18. Cladding in glass fibre have high refractive index than the core.
True
False
all of the above
None of the mentioned
19. Which of the following change electrical conductivity on the absorption of a gas molecule?
Tin
Zinc
Nickel
All of the mentioned
20. Polypropylene is a/an ______
Inorganic sensor
Organic sensor
Metal sensor
Gaseous sensor
21. ISE stands for _________
Ion sticking electrode
Ion selective electrode
Inactive segment electrode
Inorganic substance electrode
22. Glass electrode is an ion selective electrode.
True
False
all of the above
None of the mentioned
23. Water purity is tested by ________
Water activity sensor
pH meter
SAW sensor
BAW sensor
24. Heater power in thick film hybrid technology is _____
5KW
50 MW
500 MW
500 mW
25. Chemiresistor sensors are used for test gases in _______
Solid form
Liquid form
Vapour form
All of the mentioned
26. IR sensors are used in detection of _______
Organic gases
Inorganic gases
Vapours
All of the mentioned
27. Photo ionization and flame ionization technique are most favoured in detection of ______
Organic gases
Inorganic gases
Vapours
All of the mentioned
28. Mass sensors are a combination of SAW.
True
False
all of the above
None of the mentioned
29. SAW stands for _______
Sound actuated wave
Surface acoustic wave
Sound activated wave
Surface activated wave
30. Quartz can be used as bio sensors.
True
False
all of the above
None of the mentioned
31. Direction of acoustic wave in QCM will be _______
Same as crystal surface
Opposite to crystal surface
Perpendicular to crystal surface
None of the mentioned
32. Acoustic wave in QCM meets minimum impedance when thickness of device is ______
Equal to wavelength of acoustic wave
Product of Half of wavelength of acoustic wave
Product of quarter of wavelength of acoustic wave
None of the mentioned
33. Which of the following is most preferred?
QCM and SAW sensor
QCM and BAW sensor
QCM
All of the mentioned
34. Magnetic bio sensor is wide used for _______
Blood detection
DNA detection
ECG detection
EMG detection
35. QCM stands for __________
Quartz crystal micro balance
Quality control balance
Quartz crystal magnifier
None of the mentioned
36. Changes in resonant frequency of QCM is proportional to ________
Mass accumulated in crystal
Crystal used
Time of usage
None of the mentioned
37. BAW stands for ________
Bulk acoustic wave
Barrier acoustic wave
Barrier avoiding wave
Bulk activated wave
38. Non contacting type bio sensors are _______
Radiation type
Electromagnetic type
Radiation or electromagnetic type
None of the mentioned
39. Which of the following produce em radiation in ir region?
Body with negative temperature
Body with temperature less than 1000C
Body with temperature less than 6000C
Body with temperature less than 10000C
40. Energy of emitted radiation from a body increases with ________
Increase in temperature
Decrease in temperature
No relation with temperature
Net energy cannot be changed
41. Wavelength of peak radiation is represented by ________
28.91 * T
2891/T
189 * T
None of the mentioned
42. At 1000C wavelength of radiation will be ________
Less than 10um
Less than 100um
Less than 1000um
Less than 10nm
43. Radiation thermometers are pyrometers.
True
False
all of the above
None of the mentioned
44. Temperature sensor of silicon can detect wavelength of _______
Less than 0.1 um
Less than 1.1 um
Less than 10nm
Greater than 100nm
45. Which of the following sensor have a large response time?
Thermopile
Pyroelectric sensor
Lead sulphide sensor
Silicon sensor
46. IR thermograph is also known as________
Thermogram
Heat thermograph
Thermogram
None of the mentioned
47. IR thermography is useful in the medical field.
True
False
all of the above
None of the mentioned
48. Which of the following sensors provide higher temperature capacity?
Thermopile
Pyroelectric sensor
Lead sulphide sensor
Silicon sensor
49. AFM stands for ______
Auto focusing microscope
Antenna focusing microscope
Atomic force microscope
None of the mentioned
50. Phenomenon of producing sound under mechanical stress is called______
Magnetostriction
Acoustiction
Electrostriction
Acoustic emission
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