500 Best Surveying MCQ
Q57). At the equator, the amount of dip is
a).0°
b).45°
c).60°
d).90°
Correct Answer:
0°
Explanation:
Q58). At the magnetic poles, the amount of dip is
a).0°
b).45°
c).60°
d).90°
Correct Answer:
90°
Explanation:
Q59). The lines of earth’s magnetic field run from
a).south to north
b).north to south
c).east to west
d).west to east
Correct Answer:
north to south
Explanation:
Q60). The lines passing through points at which the magnetic declination is equal at a given time are called
a).isogonic lines
b).agonic lines
c).isoclinic lines
d).none of these
Correct Answer:
isogonic lines
Explanation:
Q61). When the magnetic bearing of the sun at noon is 185°20’ the magnetic declination will be
a).5°20’ east
b).5°20’ west
c).5°20’ north
d).5°20’ south
Correct Answer:
5°20’ west
Explanation:
Q62). When the magnetic declination is 5°20’ east, the magnetic bearing of the sun at noon will be
a).95°20’
b).174°40’
c).185°20’
d).354°40’
Correct Answer:
354°40’
Explanation:
Q63). The magnetic bearing of a line is S35°30’E and the magnetic declination is 4°10’east. The true bearing of a line will be
a).S31°30’E
b).S31°30’W
c).S39°50’E
d).S39°50’W
Correct Answer:
S31°30’E
Explanation:
Q64). The theodolite is an instrument used for measuring very accurately
a).horizontal angles only
b).vertical angles only
c).horizontal and vertical angles
d).linear measurements
Correct Answer:
horizontal and vertical angles
Explanation: