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Analytical Instrumentation MCQ Question Set 31
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1. Which of the following can be cause for non-zero output when zero input?
Bias
Slew
Offset
Offset or bias
2. Sensitivity of a sensor can be depicted by ________
Niquist plot
Pole- zero plot
Bode plot
None of the mentioned
3. Which of the following error is caused by a reversal of measured property?
Hysterisis
Noise
Digitization error
Quantization error
4. Smallest change which a sensor can detect is _______
Resolution
Accuracy
Precision
Scale
5. Thermocouple generate output voltage according to ______
Circuit parameters
Humidity
Temperature
Voltage
6. Sensor is a type of transducer.
True
False
all of the above
None of the mentioned
7. Which of the following is not an analog sensor?
Potentiometer
Force-sensing resistors
Accelerometers
None of the mentioned
8. Measured property have no relation with error.
True
False
all of the above
None of the mentioned
9. Semiconductor used in sensors will be _______
Pure form
Doped form
Pure or doped form
None of the mentioned
10. A semiconductor can act as _________
Insulator
Semi conductor
Pure conductor
All of the mentioned
11. Which of the following represent permalloy?
Nickel iron alloy
Nickel platinum alloy
Nickel gold alloy
Nickel bronze alloy
12. Permalloy are most suitable for __________
Pressure measurement
Temperature measurement
Voltage measurement
All of the mentioned
13. Silicon and germanium can act as piezo resistive materials.
True
False
all of the above
None of the mentioned
14. Which of the following act as magneto-resistive material?
Bismuth
Antimonide
Both bismuth and antimonide
None of the mentioned
15. In piezo junction diode, energy domain will be _______
Electrical
Mechanical
Radiation
Thermal
16. PVDF stands for ________
Poly Vinyledene Fluoride
Poly Vinyle Duro Fluoride
Penta Valent Di Fluoride
Poly Valent Duro Flourisher
17. Pyro electric coefficient of PVDF will be ______
1 VK-1
8 VK-1
20 VK-1
50 VK1
18. Amorphous materials will be ______
Isulators
Semi conductors
Super conductors
All of the mentioned
19. _________ handle mathematical operations necessary to deliver the output signal.
Small sensors
Mat sensors
Soft sensors
Super sensors
20. Which of the following is not a configuration of a smart sensor?
Transducer
Network interface
Processor
None of the mentioned
21. A/D conversion is not needed in the smart sensor.
True
False
all of the above
None of the mentioned
22. Input signal to smart sensor is fed from _______
Power supply
Transducer
Volt meter
All of the mentioned
23. Storage of data possible in smart sensors.
True
False
all of the above
None of the mentioned
24. Signal conditioning is carried out in _________
Transducer housing
Processor
Network interface
None of the mentioned
25. Output of smart sensors will of _________
Analog
Digital
Analog and digital
None of the mentioned
26. Which of the following defines smartness of sensor?
Quality of data
Circuit size
Circuit components
All of the mentioned
27. Input data of smart sensor will be ________
Analog
Digital
Analog and digital
None of the mentioned
28. Which of the following represents network bus?
Instrumentation contact
Field instrumentation bus
Data bus
Bit line contact
29. MEM stands for ______
Macro electro magnetism
Macro electro mechanism
Micro electro mechanism
Micro electro magnetism
30. Which of the following represents the inverse transducer of a microphone?
Micro speaker
Pressure transducer
Bourden element
All of the mentioned
31. Which of the following provides high thermal stability as bimorph?
Silicon nitride
Parylene D
Silicon oxide
None of the mentioned
32. Gyroscopes are _____
Inertial sensors
Pressure sensors
Voltage sensors
Humidity sensors
33. Polymer thick film can act as a sensing element.
True
False
all of the above
None of the mentioned
34. Which of the following is not a polymer matrix?
Epoxy resin
Silicon resin
Phenolic resin
None of the mentioned
35. Which of the following is not a conductive paste?
Copper
Carbon particles
Silver particles
None of the mentioned
36. Polymers can act as humidity sensors.
True
False
all of the above
None of the mentioned
37. PZT stands for _____
Poly zirconate titanate
Lead zirconate tartarate
Poly zirconate trioxide
Poly zirconate tetranitrate
38. Which of the following is not a piezo electric sensor?
PZT
Roscelle salt
Quartz
None of the mentioned
39. Which of the following is not a part of electro magnetic radiation?
UV
Visible region
IR spectra
None of the mentioned
40. Which of the following represents IR wavelength?
100 nm to 700 nm
700 nm to 2500 nm
2500 nm to 5000 nm
Greater than 2500 nm
41. Infra red radiation sources may be ______
Thermal source
Non-thermal source
Thermal or non-thermal source
None of the mentioned
42. Every hot body emits IR radiation.
True
False
all of the above
None of the mentioned
43. Tungsten filament lamp is a _________
Thermal source
Non-thermal source
Thermal or non-thermal source
None of the mentioned
44. Which of the following is correct for non-thermal source?
Need external supply
Doesn’t need an external source
Can act as thermal source
All of the mentioned
45. LED and laser emit radiation in ________
Narrow range
Wide range
Medium bandwidth
Unpredictable bandwidth
46. Sensing element in IR thermal detector will be ________
Thermo couple
Thermo pile
Bolometer
All of the mentioned
47. Which of the following is the correct relationship for sensitivity?
Volt/watt
Watt/volts
Volt/amp
Volts
48. Sensitivity can represent in terms of the lumen.
True
False
all of the above
None of the mentioned
49. Basically sound waves are ________
Voltage signals
Pressure waves
Current
Radiation
50. Which of the following is not a character of a sensor of a sound wave?
Causes no health hazard
They are suitable in a harsh environment
They are only suitable in cold environment
They can be used in corrosive environment
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