Measurement of Errors Quiz

What is the difference between the measured values of a quantity and its true values?

• Gross error

• Systematic error

• Random error

• Absolute error

Which type of error is caused by instruments imperfection such as friction or faulty components?

• Systematic error

• Environmental error

• Random error

• Human error

What is the best way to avoid instrumental error?

• Using the arrangements to keep surrounding conditions constant

• Reducing the effect of dust and humidity

• Calibrating the instrument carefully

• Selecting the correct instrument

What type of error is caused by human mistakes like misreading instruments?

• Random error

• Environmental error

• Systematic error

• Human error

Why is systematic error considered a serious error?

• It is difficult to identify

• It is random in nature

• It can be reduced by averaging measurements

• It is caused by external conditions

What is the expression of random error?

• Relative accuracy

• Absolute error

• Fractional error

• Percentage error

How can you avoid environment error?

• Selecting the correct instrument

• Calibrating the instrument carefully

• Reducing the effect of dust and humidity

• Using the arrangements to keep surrounding conditions constant

What is the best way to avoid human error?

• Reading the instrument's manual thoroughly

• Taking multiple readings and applying statistical techniques

• Calibrating the instrument carefully

• Selecting the correct instrument

What is the difference between absolute error and fractional error?

• Measured value and actual value

• Measured value and variable

• Measured value and variable

• Actual value and variable

What is the purpose of taking multiple readings to estimate true measurement values?

• To avoid environmental error

• To introduce human error

• To reduce random error

• To increase systematic error