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