Advanced Surveying MCQs

Question 1

Assertion : Though the distances of stars from the earth vary, they are assumed to be studded to a celestial sphere.Reason : The linear size of the sphere is irrelevant as all the six elements of the astronomical triangle are only considered and not the distances of terres tial triangle

Accepted Answer

Both A and R are true and R is the correct explanation of A

Answer

Both A and R are true but R is not a correct explanation of A

Answer

A is true but R is false

Answer

A is false but R is true.

Question 2

The astronomical triangle PZS formed by the arcs joining the pole, the zenith and the star

Accepted Answer

all the above.

Answer

reduces to an arc when the star transits at zenith

Answer

(b ) the side PZ is of a fixed value for a particular observer

Answer

the side PS is of fixed value for a particular star

Question 3

When a star transits at the zenith

Accepted Answer

all the above.

Answer

the astronomical triangle becomes of the largest area

Answer

the astronomical triangle reduces to an arc joining the pole and the zenith

Answer

the angle of elevation of the star is 900

Question 4

If h is the altitude of the star 0 is the observer's latitude, and 6 is the star's declination, the value of azimuth is given by

Accepted Answer

cos Z = (sin 6 ? sin 0 . sin h)/(cos 0 cos h)

Answer

cos Z = (cos 6 ? sin 0 . sin h)/(sin 0 cos h)

Answer

(e) cos Z = (tan 6 ? sin 0 . sin h)/(sin 0 cos h )

Answer

none of the above.

Question 5

Pick up the correct statement from the following :

Accepted Answer

all the above.

Answer

astronomical meridian plane passes through a point, the zenith ad the pole

Answer

the meridian planes of two points cut in one line which is parallel to the earth's and axes of rotation

Answer

the angle between the meridian planes of two points is the difference of astronomical longitude of the two places.

Question 6

Pick up the correct statement from the following :

Accepted Answer

All the above.

Answer

An adjusted sidereal chronometer goes at the rate which keeps pace with the rotation of the earth in space

Answer

At the moment when an observer's meridian intersects the point y (First point of Arries) his local sidereal time is 00n 00'n 00s

Answer

The observer's local sidereal time at any moment is the hour angle of y (First point of Arries) reckoned from the meridian westward up to 360`

Question 7

For determining the local sidereal time

Accepted Answer

the hour angle of star is added to the right ascension if star is in western horizon

Answer

the hour angle of star is subtracted from the right ascension if star is in western horizon.

Answer

the hour angle of star is added to the right ascension if star is in eastern horizon

Answer

none of these.

Question 8

Pick up the correct statement from the following :

Accepted Answer

all the above.

Answer

the plane of the apparent orbit of the sun is inclined to the celestial equator at an angle of about 23

Answer

the First point of Aries is at the location where sun crosses from the south side of the equator to the north side

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Vernal Equinox occurs on 21st March every year

Question 9

Pick up the correct statement from the following :

Accepted Answer

all the above. --

Answer

the sun's right ascension increases for 0 h to 24 h when it returns to the First point of Aries

Answer

the maximum declination of the sun increases up to 23? N on about 21st June

Answer

the minimum declination of the sun is zero on 22nd September