To_measure_a_vertical_angle,_the_instrument_should_be_levelled_with_re – McqOptions

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1.	To_measure_a_vertical_angle,_the_instrument_should_be_levelled_with_reference_to_the_line_of_sight.$
A.	True
B.	False
Answer» C.

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To measure a vertical angle, the instrument should be levelled with reference to the line of sight.
The method of repetition is used when it is required to lay off an angle with greater precision than that possible by single observations.
Theodolite can be used to lay off a horizontal angle.
In measuring direct angles, azimuths from the back line may vary from 0° to 180°.
THE_METHOD_OF_REPETITION_IS_USED_WHEN_IT_IS_REQUIRED_TO_LAY_OFF_AN_ANGLE_WITH_GREATER_PRECISION_THAN_THAT_POSSIBLE_BY_SINGLE_OBSERVATIONS.?$
To_measure_a_vertical_angle,_the_instrument_should_be_levelled_with_reference_to_the_line_of_sight.$
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