what are difference different type of error occurring measurement? How they are minimised?
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Types of errors - definition
Instrumental (or constant) Error: These errors are caused due to fault construction of instruments. Such errors can be minimized by taking same measurement with different accurate instruments. Systematic (Persistent) Error: This is an error due to defective setting of an instrument.
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Answer: There are two types of errors, systematic and random. It is important for the surveyor to understand the difference between the two errors in order to minimize them. Systematic errors are caused by the surveying equipment, observation methods, and certain environmental factors.
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