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What is the definition of accuracy in the context of instrumentation?
What is the definition of accuracy in the context of instrumentation?
- The intrinsic error introduced by the instrument itself
- The ability of the instrument to detect small variations in the signal
- The closeness of the instrument reading to the true value of the measured variable (correct)
- The maximum possible error in the measurement result
How is accuracy determined in an instrument?
How is accuracy determined in an instrument?
- By assessing the observer's handling of the instrument
- By comparing the result to a standard measurement (correct)
- By measuring the variation of the signal being observed
- By experimenting with different measurement systems
What factors affect the accuracy of a measured signal?
What factors affect the accuracy of a measured signal?
- Resolution, sensitivity, lag, and noise
- Variation in local conditions, observer errors, signal accumulation, and compensation methods
- Parallax errors, estimation errors, loading effect, and mechanical problems
- Intrinsic accuracy of the instrument, observer's accuracy, signal variation, and true value determination (correct)
What are observational errors in instrumentation related to?
What are observational errors in instrumentation related to?
What type of errors are random errors in measurements?
What type of errors are random errors in measurements?
Why is it almost impossible to determine experimentally the true value in measurements?
Why is it almost impossible to determine experimentally the true value in measurements?
Which of the following is an example of an absolute instrument?
Which of the following is an example of an absolute instrument?
If the measured value of a capacitor is 205.3 μF and its true value is 201.4 μF, what is the relative error?
If the measured value of a capacitor is 205.3 μF and its true value is 201.4 μF, what is the relative error?
If the measured value of a power is 25.34 watts and the absolute error is -0.11 watts, what is the true value of the power?
If the measured value of a power is 25.34 watts and the absolute error is -0.11 watts, what is the true value of the power?
If three resistors with values R1 = 47 Ω ± 4%, R2 = 65 Ω ± 4%, and R3 = 55 Ω ± 4% are connected in series, what is the magnitude of the limiting error in ohms?
If three resistors with values R1 = 47 Ω ± 4%, R2 = 65 Ω ± 4%, and R3 = 55 Ω ± 4% are connected in series, what is the magnitude of the limiting error in ohms?
If three resistors with values R1 = 47 Ω ± 4%, R2 = 65 Ω ± 4%, and R3 = 55 Ω ± 4% are connected in series, what is the limiting error in percentage?
If three resistors with values R1 = 47 Ω ± 4%, R2 = 65 Ω ± 4%, and R3 = 55 Ω ± 4% are connected in series, what is the limiting error in percentage?
What is the absolute error if the measured value of a resistance is 10.25 Ω and the true value is 10.22 Ω?
What is the absolute error if the measured value of a resistance is 10.25 Ω and the true value is 10.22 Ω?
Which of the following is NOT a type of systematic error?
Which of the following is NOT a type of systematic error?
Which of the following is the BEST way to avoid instrumental errors?
Which of the following is the BEST way to avoid instrumental errors?
Which of the following statements about environmental errors is NOT true?
Which of the following statements about environmental errors is NOT true?
What is the main difference between gross errors and systematic errors?
What is the main difference between gross errors and systematic errors?
If a measuring instrument is subjected to high temperature and humidity, what type of error is most likely to occur?
If a measuring instrument is subjected to high temperature and humidity, what type of error is most likely to occur?
What is the BEST way to reduce or eliminate environmental errors in measurements?
What is the BEST way to reduce or eliminate environmental errors in measurements?
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