03 Civil Engineering Quiz | Advanced Surveying MCQ #mcq.cetjob.com

03 Civil Engineering Quiz | Advanced Surveying MCQ

1 >>Pick up the correct statement from the following. The difference between the longitudes of the places is obtained. ?

• (A) by adding their longitudes if places are in the different hemispheres
• (B) by subtracting their longitudes if places are in the same hemisphere
• (C) by subtracting the sum of their longitudes exceeding 180° from 360° if places are in different hemispheres
• (D) all

2 >>Systematic errorsion¨ ?

• (A) are also known as cumulative errors
• (B) can be removed by applying corrections to the observed values
• (C) either make the result too great or too small
• (D) all

3 >>The station which is selected close to the main triangulation station, to avoid intervening obstruction, is not known as
 ?

• (A) satellite station
• (B) eccentric station
• (C) false station
• (D) pivot station.

4 >>The relief displacement of a minar 72 m high on photograph is 7.2 mm and its top appears 10 cm away from principal point. The flying height of the camera, is
 ?

• (A) 2000 m
• (B) 1500 m
• (C) 500 m
• (D) 1000 m

5 >>While making astronomical observations, the observer is mainly concerned with
 ?

• (A) the direction of the star from the instrument
• (B) the direction of the poles of the celestial sphere
• (C) the direction of the vertical, the axis of rotation of the instrument
• (D) all

6 >>The most convenient co-ordinate system for specifying the relative positions of heavenly bodies on the celestial sphere, is
 ?

• (A) altitude and azimuth system
• (B) declination and altitude system
• (C) declination and hour angle system
• (D) declination and right ascension system

7 >>The law of weight applicable to the Method of Least squares error, is
 ?

• (A) The weight of the sum of the quantities added algebraically is equal to the reciprocal of the sum of the reciprocals of the individual weights
• (B) The weight of the product of any quantity multiplied by a constant is equal to the weight of that quantity divided by the square of that constant.
• (C) The weight of the weighted arithmetic mean of a number of observations, is equal to the sum of the individual weights of observations
• (D) The weight of the arithmetic mean of a number of observations of unit weight, is equal to the number of observations

8 >>The shortest distance between two places measured along the surface of the earth, is
 ?

• (A) length of the parallel between their longitudes
• (B) length of the equator between their longitudes
• (C) length of the arc of the great circle passing through them
• (D) none of these

9 >>The latitude (λ) of a place and the altitude (α) of the pole are related by
 ?

• (A) λ = 90° - α
• (B) λ = 180° - α.
• (C) λ = α
• (D) λ = α - 90°

10 >>Latitude of a place is the angular distance from
 ?

• (A) equator to the nearer pole along the meridian of the place
• (B) equator to the nearer pole
• (C) equator to the poles
• (D) none of these

11 >>The difference in longitude of two places expressed in time is equal to the difference in their
 ?

• (A) mean solar time
• (B) apparent solar time
• (C) sidereal time
• (D) all

12 >>The angle between the plane of the equator and the plane of the ecliptic, is known as obliquity of the ecliptic and its value is
 ?

• (A) 24° 0'.
• (B) 23° 27'
• (C) 23° 30'
• (D) 22° 30'

13 >>Polaris is usually observed for the determination of the azimuth when it is
 ?

• (A) neither at culmination nor at elongation
• (B) either at culmination or at elongation.
• (C) at elongation
• (D) at culmination

14 >>The stereo plotting instruments are generally manufactured on the principle of
 ?

• (A) mechanical projectional
• (B) optical mechanism projection
• (C) optical projection
• (D) all

15 >>The point on the celestial sphere vertically below the observer’s position, is called
 ?

• (A) nadir
• (B) zenith
• (C) celestial point
• (D) pole

16 >>The orthogonal projection of the perspective centre on a tilted photograph, is called
 ?

• (A) isocentre
• (B) nadir
• (C) principal point
• (D) plumb point.

17 >>The position of a heavenly body on the celestial sphere can be completely specified by
 ?

• (A) its altitude and azimuth
• (B) its declination and right ascension
• (C) its declination and hour angle
• (D) all

18 >>By raising the z-column of right projector, maximum y-parallax is introduced in the model at
 ?

• (A) position 4
• (B) position 6
• (C) position 4 and 6
• (D) position 2

19 >>The movement of the projector in y-direction, introduces in the model a y-parallax
 ?

• (A) maximum at position 2
• (B) equally throughout the model.
• (C) maximum at positions 3 and 4
• (D) maximum at position 5 and 6

20 >>The point where vertical line passing through the perspective centre intersects the plane of the photograph, is known as ?

• (A) photo plumb point
• (B) plumb point
• (C) nadir point
• (D) isocentre

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