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# Practice Test: Question Set - 01

1. The angle between the direction of star and the direction of earth's axis of rotation is called
(A) Co-declination
(B) Co-latitude
(C) Declination
(D) Latitude

2. Polaris is usually observed for the determination of the latitude when it is
(A) At culmination
(B) At elongation
(C) Neither at culmination nor at elongation
(D) Either at culmination or at elongation

3. Pick up the correct statement from the following:
(A) The vertical plane containing the zenith, the station of observation and the celestial pole is the observer's meridian plane
(B) The angle between the direction of star in vertical plane and the direction of the star in horizontal plane is called the altitude of the star
(C) The complement of the altitude of star is called the zenith distance of the star
(D) All the above

4. The point on the photograph where bisector between the vertical line through optical centre of the camera lens and the plate perpendicular meets, is known as
(A) Principal point
(B) Isocenter
(C) Plumb point
(D) Perspective centre

5. The station where observations are not made, but the angles at the station are used in triangulation series, is known as
(A) Satellite station
(B) Subsidiary station
(C) Pivot station
(D) Main station

6. If the distance between the projectors is altered by a movement along X-axis of one projector,
(A) The length of the air base is increased
(B) The scale of the model is altered
(C) y-parallax is not affected
(D) All the above

7. On vertical photographs, height displacement is
(A) Positive for points above datum
(B) Negative for points below datum
(C) Zero for points vertically below the air station
(D) All the above

8. At the first point of Aeries, the sun moves
(A) Northward
(B) Southward
(C) From south to north of the equator
(D) From north to south of the equator

9. The difference in longitude of two places expressed in time is equal to the difference in their
(A) Sidereal time
(B) Apparent solar time
(C) Mean solar time
(D) All the above

10. Pick up the in-correct statement from the following:
(A) Correction for refraction is always negative
(B) Correction for parallax is always positive
(C) Correction for semi-diameter is always negative
(D) Correction for dip is always negative

11. If θ and δ be the latitude of a place and declination of a star respectively, the upper culmination of the star will be north of zenith if its zenith distance, is
(A) δ - θ
(B) θ - δ
(C) θ + δ
(D) (θ + δ)/2

12. The sidereal day is the time interval between two successive upper transits of
(A) Mean sun
(B) First point of Aries
(C) First point of Libra
(D) The polar star

13. An aerial photograph may be assumed as
(A) Parallel projection
(B) Orthogonal projection
(C) Central projection
(D) None of these

14. The slotted template method
(A) Is prepared, by graphical method
(B) Is suitable for large areas with less control
(C) Is rapid and accurate
(D) All the above

15. The latitude of the observer's position, is
(A) Elevation of the elevated pole
(B) Declination of the observer's zenith
(C) Angular distance along the observer's meridian between equator and the observer
(D) All the above

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