500 Best Surveying MCQ
Q25). The tension, at which the effects of pull and sag for a tape are neutralised, is known as
a).initial tension
b).absolute tension
c).surface tension
d).normal tension
Correct Answer:
normal tension
Explanation:
Q26). A line joining some fixed points on the main survey lines, is called a
a).check line
b).tie line
c).base line
d).none of these
Correct Answer:
tie line
Explanation:
Q27). A base line in a chain survey
a).checks the accuracy of the framework
b).enables the surveyor to locate the interior details which are far away from the main chain lines
c).fixes up the directions of all other lines
d).all of the above
Correct Answer:
fixes up the directions of all other lines
Explanation:
Q28). A plumb bob is required
a).when measuring distances along slopes in a hilly country
b).for accurate centering of a theodolite over a station mark
c).for testing the verticality of ranging poles
d).all of the above
Correct Answer:
all of the above
Explanation:
Q29). Chain surveying is most suitable when
a).area to be surveyed is small
b).ground is fairly level and open with simple details
c).plans are required on a large scale
d).all of the above
Correct Answer:
all of the above
Explanation:
Q30). In a well conditioned triangle, no angle should be less than
a).30°
b).40°
c).50°
d).60°
Correct Answer:
30°
Explanation:
Q31). When the position of a point is to be located accurately by a perpendicular offset, the direction of perpendicular is set out by means of
a).theodolite
b).optical square
c).dumpy level
d).planimeter
Correct Answer:
optical square
Explanation:
Q32). The accuracy in laying down the perpendicular offsets and in measuring them depends upon
a).scale of plotting
b).length of offset
c).importance of the object
d).all of these
Correct Answer:
all of these
Explanation: