Introduction to Measurements

What is the difference between measurement and observation?

• Measurement is a single determination, while observation is a process.

• Measurement is a process, while observation is a single determination.

• Both are the same.

• Neither is important.

What are the sources of errors in measurements?

• Natural Errors, Instrumental Errors, Personal Errors

• Only Natural Errors

• Only Instrumental Errors

• Only Personal Errors

What is the definition of error in measurements?

• The difference between the measured value and the true value.

• The same as correction.

• The total of all measurements.

• An unimportant aspect of measurement.

What is the formula for calculating range?

• Range = Largest Value - Smallest Value

• Range = Smallest Value - Largest Value

• Range = Average of all values

• Range = Total number of values

What is the purpose of calibration in pacing?

What is the definition of precision in measurements?

What is the most common method of measuring horizontal distances?

• Pacing

• Taping

• Tacheometry

• Photogrammetry

What factors affect the length of pace?

What is the purpose of the Sine Law in distance measurement?

What is the role of GNSS in distance measurement?