Measurement and Data Acquisition MCQs

1. Which device is commonly used for measuring direct current (DC) voltage in electronic circuits?
A) Voltmeter
B) Ammeter
C) Ohmmeter
D) Wattmeter
Correct Answer: A) Voltmeter

2. What type of sensor is typically used for measuring ambient temperature in weather stations?
A) Thermocouple
B) Resistance Temperature Detector (RTD)
C) Thermistor
D) Mercury-in-glass thermometer
Correct Answer: C) Thermistor

3. Which instrument is used for measuring the flow rate of liquids in industrial pipelines?
A) Flowmeter
B) Manometer
C) Hygrometer
D) Tachometer
Correct Answer: A) Flowmeter

4. What does an anemometer measure?
A) Wind direction
B) Wind speed
C) Air pressure
D) Humidity
Correct Answer: B) Wind speed

5. Which device is used for measuring the pH of a solution in laboratory applications?
A) Barometer
B) Spectrometer
C) pH meter
D) Refractometer
Correct Answer: C) pH meter

6. What does a strain gauge measure?
A) Force
B) Pressure
C) Acceleration
D) Temperature
Correct Answer: A) Force

7. Which instrument is used for measuring the intensity of electromagnetic radiation?
A) Spectrometer
B) Luminometer
C) Radiometer
D) Photometer
Correct Answer: C) Radiometer

8. What does a hygrometer measure?
A) Wind speed
B) Humidity
C) Air pressure
D) Temperature
Correct Answer: B) Humidity

9. Which sensor is commonly used for measuring the level of water in a tank?
A) Strain gauge
B) Capacitive sensor
C) Hall Effect sensor
D) Photodetector
Correct Answer: B) Capacitive sensor

10. What does a tachometer measure?
A) Temperature
B) Pressure
C) Flow rate
D) Rotational speed
Correct Answer: D) Rotational speed

11. Which device is commonly used for measuring alternating current (AC) voltage in electrical systems?
A) Ammeter
B) Oscilloscope
C) Voltmeter
D) Ohmmeter
Correct Answer: C) Voltmeter

12. What type of sensor is typically used for measuring pressure in industrial applications?
A) Thermocouple
B) Piezoelectric sensor
C) Photodetector
D) Hall Effect sensor
Correct Answer: B) Piezoelectric sensor

13. Which instrument is used for measuring the depth of water in a reservoir?
A) Flowmeter
B) Altimeter
C) Depth gauge
D) Manometer
Correct Answer: C) Depth gauge

14. What does a lux meter measure?
A) Sound intensity
B) Light intensity
C) Electric current
D) Magnetic field strength
Correct Answer: B) Light intensity

15. Which sensor is commonly used for measuring acceleration in automotive crash testing?
A) Tachometer
B) Barometer
C) Accelerometer
D) Hygrometer
Correct Answer: C) Accelerometer

16. What does a spectrophotometer measure?
A) Sound frequency
B) Light absorption
C) Electrical resistance
D) Magnetic field strength
Correct Answer: B) Light absorption

17. Which instrument is used for measuring the level of sound intensity in decibels?
A) Barometer
B) Anemometer
C) Sound level meter
D) Thermometer
Correct Answer: C) Sound level meter

18. What does a pyrometer measure?
A) Humidity
B) Pressure
C) Temperature
D) Flow rate
Correct Answer: C) Temperature

19. Which sensor is commonly used for measuring the position of a linear actuator?
A) Potentiometer
B) Strain gauge
C) Capacitive sensor
D) Hall Effect sensor
Correct Answer: A) Potentiometer

20. What does a densitometer measure?
A) Density of gases
B) Density of liquids
C) Density of solids
D) Density of electromagnetic fields
Correct Answer: B) Density of liquids

21. Which instrument is used for measuring the speed of rotation of a shaft in an engine?
A) Anemometer
B) Tachometer
C) Barometer
D) Hygrometer
Correct Answer: B) Tachometer

22. What does a calorimeter measure?
A) Electric charge
B) Heat transfer
C) Light intensity
D) Magnetic field strength
Correct Answer: B) Heat transfer

23. Which sensor is commonly used for measuring the level of liquid nitrogen in cryogenic storage tanks?
A) Capacitive sensor
B) Ultrasonic sensor
C) Hall Effect sensor
D) Cryogenic sensor
Correct Answer: D) Cryogenic sensor

24. What does an anemometer measure?
A) Wind direction
B) Wind speed
C) Air pressure
D) Humidity
Correct Answer: B) Wind speed

25. Which instrument is used for measuring the concentration of pollutants in ambient air?
A) Pyranometer
B) Photometer
C) Spectrometer
D) Gas chromatograph
Correct Answer: D) Gas chromatograph

26. What does a densitometer measure?
A) Density of gases
B) Density of liquids
C) Density of solids
D) Density of electromagnetic fields
Correct Answer: B) Density of liquids

27. Which device is commonly used for measuring the force applied to a mechanical component?
A) Altimeter
B) Dynamometer
C) Manometer
D) Ammeter
Correct Answer: B) Dynamometer

28. What type of sensor is typically used for measuring oxygen levels in blood in medical applications?
A) Pulse oximeter
B) Respirometer
C) Oxidation sensor
D) Blood gas analyzer
Correct Answer: A) Pulse oximeter

29. Which instrument is used for measuring the intensity of electromagnetic radiation across different wavelengths?
A) Luminometer
B) Spectrophotometer
C) Refractometer
D) Photometer
Correct Answer: B) Spectrophotometer

30. What does a barometer measure?
A) Wind speed
B) Atmospheric pressure
C) Humidity
D) Temperature
Correct Answer: B) Atmospheric pressure

31. Which device is commonly used for measuring the electrical resistance of a component?
A) Ammeter
B) Voltmeter
C) Ohmmeter
D) Wattmeter
Correct Answer: C) Ohmmeter

32. What does a hydrometer measure?
A) Wind speed
B) Humidity
C) Specific gravity of liquids
D) Air pressure
Correct Answer: C) Specific gravity of liquids

33. Which instrument is used for measuring the altitude above sea level?
A) Anemometer
B) Altimeter
C) Barometer
D) Tachometer
Correct Answer: B) Altimeter

34. What does a chromatograph measure?
A) Heat transfer
B) Electrical conductivity
C) Pressure
D) Chemical composition of substances
Correct Answer: D) Chemical composition of substances

35. Which sensor is commonly used for measuring the speed of a vehicle?
A) GPS receiver
B) LIDAR sensor
C) Radar sensor
D) Thermocouple
Correct Answer: A) GPS receiver

36. What does a lux meter measure?
A) Sound intensity
B) Light intensity
C) Electric current
D) Magnetic field strength
Correct Answer: B) Light intensity

37. Which instrument is used for measuring the amount of oxygen consumed by a living organism or cell culture?
A) Oximeter
B) Respirometer
C) Spirometer
D) Spectrometer
Correct Answer: B) Respirometer

38. What does an inclinometer measure?
A) Angular displacement
B) Magnetic field strength
C) Humidity
D) Electric current
Correct Answer: A) Angular displacement

39. Which device is commonly used for measuring the voltage drop across a resistor or component in a circuit?
A) Ammeter
B) Voltmeter
C) Ohmmeter
D) Wattmeter
Correct Answer: B) Voltmeter

40. What does a colorimeter measure?
A) Color intensity
B) Light intensity
C) Electric current
D) Magnetic field strength
Correct Answer: A) Color intensity

41. Which device is commonly used for measuring the speed of a rotating shaft in industrial machinery?
A) Tachometer
B) Barometer
C) Hygrometer
D) Altimeter
Correct Answer: A) Tachometer

42. What does a dynamometer measure?
A) Force
B) Pressure
C) Flow rate
D) Temperature
Correct Answer: A) Force

Measurement and Data Acquisition MCQs

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