The parallax equation is applicable to entire overlap of the photographs only if

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Question
The parallax equation is applicable to entire overlap of the photographs only if parallax is measured
Options
A. normal to base line
B. parallel to base line
C. both (a) and (b)
D. neither (a) nor (b).

Correct Answer

parallel to base line

Advanced Surveying problems

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1. Polaris is usually observed for the determination of the azimuth when it is
Options
A. at culmination
B. at elongation
C. neither at culmination nor at elongation
D. either at culmination or at elongation.

2. The equation which is obtained by multiplying each equation by the coefficient of its un-knowns and by adding the equations thus formed, is known as
Options
A. observation equation
B. conditional equation
C. normal equation
D. none of these.

6. The most convenient co-ordinate system for specifying the relative positions of heavenly bodies on the celestial sphere, is
Options
A. altitude and azimuth system
B. declination and hour angle system
C. declination and right ascension system
D. declination and altitude system
E. azimuth and declination system.

7. For any star to be a circumpolar star, its
Options
A. declination must be 0�
B. declination must be 90�
C. distance from the pole must be less than the latitude of the observer
D. hour angle must be 180�.

8. The station which is selected close to the main triangulation station, to avoid intervening obstruction, is not known as
Options
A. satellite station
B. eccentric station
C. false station
D. pivot station.

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