Angular measurement at any plane can be measured by a
APrism Compass
BTheodolite
CCross wall
DBox Sextant
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Parallelogram law of forces states that if two forces acting simultaneously at a point be resultant can be represented in magnitude and direction by the adjacent sides of a parallelogram, their resultant can be represented in magnitude and direction by
The enclosed angle on the inside of the wall is 60° is called:
In Engineering drawing, continuous thick lines are used to draw:
In a theodolite if the vertical circle vernier do not read zero when the line of sight is horizontal. The vertical angle measured will be incorrect, this error is known as
രക്ത പര്യയന വ്യവസ്ഥ കണ്ടെത്തിയത് ?