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Which of the following measurements is called linear measurement?
Finding angle
Vertical distance
Horizontal distance
All of the above
Horizontal distance
Linear measurement is defined as the process of determining the length of a line between two points in a survey. In surveying, the primary linear measurement involves measuring horizontal distances using tools like chains, tapes, or electronic distance measurement (EDM) devices.
Linear measurement is defined as the process of determining the length of a line between two points in a survey. In surveying, the primary linear measurement involves measuring horizontal distances using tools like chains, tapes, or electronic distance measurement (EDM) devices.
L=(x2тАЛтИТx1тАЛ)2+(y2тАЛтИТy1тАЛ)2тАЛ тАФ Distance between two points in a 2D plane
D=SтЛЕcos(╬╕) тАФ Corrected horizontal distance for a slope measurement
In surveying, all measurements are projected onto a horizontal plane to ensure consistency. While vertical distances are measured for leveling, 'linear measurement' by standard definition in chain surveying refers specifically to horizontal distances measured along the ground or the horizontal baseline.
Linear measurements are the foundation of chain and tape surveying.
Horizontal distance is the absolute requirement for plotting maps in surveying.
Measurement of vertical height is categorized under Leveling or Hypsometry.
Angular measurement is categorized under Theodolite surveying or Compass surveying.
Simple and intuitive measurement process.
Does not require complex instrumentation for small areas.
Prone to human errors (e.g., sagging of the chain).
Difficult to perform in uneven or mountainous terrain without correction.
Preparation of plans and maps.
Setting out of building foundations.
Road and railway alignment surveys.
Finding an angle is classified under Angular Measurement.
Vertical distance is classified under Leveling.
The standard unit for linear measurement in SI is the meter (m).
C is correct тАФ Horizontal distance is the fundamental measurement referred to as linear measurement in surveying.
Always remember that in surveying, 'Distance' implies horizontal distance unless specified otherwise (like 'Vertical Distance' or 'Slope Distance').