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WorksheetsSensor Classification and Calibration Quiz
Total questions: 55
Worksheet time: 28mins
Which of the following is NOT a classification of sensors?
Active sensors
Passive sensors
Dynamic sensors
Thermal sensors
Active sensors require:
An external power source
No external power source
Only thermal energy
Magnetic induction
A thermocouple is an example of a:
Passive sensor
Active sensor
Mechanical sensor
Optical sensor
The output of a passive sensor depends on:
Input excitation
Physical property variation
Amplification process
Digital processing
Piezoelectric sensors are commonly used for:
Measuring pressure
Measuring temperature
Measuring light intensity
Measuring displacement
Accuracy refers to:
Closeness to the true value
Consistency of measurements
Smallest measurable value
Range of measurement
Precision is the:
Ability to measure a wide range of values
Repeatability of measurements
Closeness to the true value
Sensor's sensitivity to changes
Resolution of a sensor is defined as:
The ability to detect small changes
The maximum range of the sensor
The sensor's response time
Its output stability over time
Sensitivity in a sensor means:
Response to environmental conditions
Change in output for a unit change in input
The smallest measurable change
The response time of the sensor
Hysteresis is caused by:
Non-linear response
Lagging output during increasing or decreasing input
Sensitivity to noise
Inadequate calibration
Repeatability refers to the ability of a sensor to:
Maintain consistent output under identical conditions
Measure small changes in input
Resist noise interference
Respond quickly to inputs
Reproducibility in measurements is defined as:
Consistency over multiple measurements at different times
Ability to measure over a wide range
Accurate performance in extreme environments
Precision at high frequencies
The range of a sensor refers to:
Its sensitivity
Maximum and minimum limits of measurement
The resolution of the sensor
Its repeatability
Sensor selection should be based on:
Application requirements
Cost and availability
Measurement range and accuracy
All of the above
Standardization in sensors ensures:
Compatibility across systems
Accurate calibration
Consistent performance
All of the above
Which of the following is NOT a base unit in SI?
Meter
Kilogram
Mole
Pascal
SI base unit for luminous intensity is:
Lux
Candela
Lumen
Watt
Generalized instrumentation systems typically include:
Sensor, signal conditioning, display/output
Amplifier and mechanical components
Only sensors and actuators
Transmitter and control systems
Signal conditioning in an instrumentation system refers to:
Amplification and filtering
Calibration
Analog-to-digital conversion
All of the above
The SI unit of pressure is:
Bar
Pascal
Newton
Atmosphere
Errors that occur due to environmental factors are:
Systematic errors
Random errors
Gross errors
Calibration errors
Systematic errors can be minimized by:
Repeated measurements
Proper calibration
Ignoring external conditions
Using digital systems
Which of the following is a type of calibration method?
Zero adjustment
Span adjustment
Comparison calibration
All of the above
Calibration is essential for:
Increasing measurement precision
Reducing systematic errors
Standardizing measurement instruments
All of the above
The term "linearity" in measurement means:
Consistent output for a linear input
Range of measurement
Reproducibility
Accuracy over time
Traceability in calibration refers to:
Documentation of calibration history
Reference to a recognized standard
Ensuring reproducibility
Eliminating random errors
Zero calibration adjusts a sensor to:
Match the minimum input
Respond to zero input with zero output
Increase measurement range
Enhance resolution
Sensitivity calibration focuses on:
Adjusting the response slope
Reducing environmental noise
Aligning with physical standards
None of the above
Dynamic calibration involves:
Steady-state signals
Time-varying inputs
Zero and span adjustments
Environmental compensation
An essential step in calibration documentation is:
Recording initial and final readings
Including reference standards
Date and technician details
All of the above
A bimetallic thermometer works on the principle of:
Change in resistance with temperature
Expansion of metals
Emission of radiation
Change in capacitance
RTDs are commonly made of:
Platinum
Copper
Nickel
All of the above
Thermistors are known for their:
Linear response
High sensitivity
High-temperature range
Low accuracy
The Seebeck effect is utilized in:
Resistance Temperature Detectors
Thermistors
Thermocouples
Bimetallic thermometers
Integrated circuit temperature transducers provide:
Analog voltage proportional to temperature
Digital output for microcontrollers
Both a and b
None of the above
Resistive pressure transducers operate based on:
Strain gauge principle
Capacitive effects
Piezoelectric response
Thermal expansion
Capacitive pressure transducers are sensitive to:
Displacement of diaphragm
Changes in resistance
Piezoelectric voltage
None of the above
Piezoelectric transducers are best suited for:
Static pressure measurements
Dynamic pressure measurements
Low-temperature applications
Resistive temperature sensing
Which material is commonly used in piezoelectric pressure sensors?
Quartz
Silicon
Platinum
Copper
Pressure sensors are often calibrated using:
Dead weight testers
Reference transducers
Manometers
All of the above
The ability of a sensor to measure the same value consistently under identical conditions is called:
Accuracy
Precision
Repeatability
Sensitivity
Which term describes the smallest change in input that a sensor can detect?
Accuracy
Resolution
Range
Linearity
What is the primary factor causing hysteresis in sensors?
Frictional forces
Material deformation
Electrical noise
Temperature variations
The range of a sensor is the:
Maximum output signal strength
Difference between the minimum and maximum measurable values
Sensitivity to external factors
Accuracy over time
A sensor's sensitivity is best described as:
The ability to detect small changes in input
The ratio of output change to input change
The maximum range of operation
Its resistance to environmental noise
Which of the following is NOT a factor in sensor selection?
Operating range
Measurement accuracy
Cost of calibration
Compatibility with the system
Reproducibility refers to measurements that are:
Repeatable under different conditions or locations
Consistent across different sensors
Accurate at extreme operating ranges
Resistant to noise
Which error occurs due to wear and tear in the sensor material?
Calibration error
Drift
Random error
Zero offset
Hysteresis errors can be reduced by:
Calibration using zero and span adjustments
Using materials with low elasticity
Increasing the sensor's resolution
Applying dynamic calibration techniques
Dynamic calibration is necessary for sensors that measure:
Steady-state values
Time-varying inputs
Environmental noise
None of the above
The term "linearity" in sensor measurement indicates:
The ability to follow a straight-line input-output relationship
Consistency of measurements over time
Resistance to noise
High sensitivity in small ranges
Which calibration method adjusts a sensor's output across its entire range?
Zero adjustment
Span adjustment
Multi-point calibration
Static calibration
Which factor is critical for long-term stability in a sensor?
High sensitivity
Resistance to environmental changes
Accurate calibration
Both b and c
A sensor's zero drift is most likely caused by:
Hysteresis
Temperature variations
Random errors
Improper signal conditioning
Calibration ensures that a sensor's:
Sensitivity remains constant
Output matches the standard value
Range is extended
Resolution is enhanced
