500 Best Surveying MCQ
Q113). The collimation method for obtaining the reduced levels of points does not provide a check on
a).fore sights
b).back sights
c).change points
d).intermediate sights
Correct Answer:
intermediate sights
Explanation:
Q114). The rise and fall method for obtaining the reduced levels of points provides a check on
a).fore sights only
b).back sights only
c).intermediate sights only
d).all of these
Correct Answer:
all of these
Explanation:
Q115). Collimation method is used in
a).profile levelling
b).differential levelling
c).check levelling
d).both A and B
Correct Answer:
profile levelling
Explanation:
Q116). Rise and fall method is used in
a).profile levelling
b).differential levelling
c).check levelling
d).none of these
Correct Answer:
B. & C.
Explanation:
Q117). The method of levelling in which the heights of mountains are found by observing the temperature at which water boils is known as
a).barometric levelling
b).reciprocal levelling
c).longitudinal levelling
d).hypometry
Correct Answer:
hypometry
Explanation:
Q118). In levelling, the effect of refraction may be taken as …………. Of that due to curvature.
a).one-half
b).one-third
c).one-fifth
d).one-seventh
Correct Answer:
one-seventh
Explanation:
Q119). In levelling, the correction for curvature, in metres, is equal to
a).0.00785D^2
b).0.0785D^2
c).0.0112D^2
d).0.0673D^2
Correct Answer:
0.0785D^2
Explanation:
Q120). In levelling, the correction for combined curvature and refraction, in metres, is equal to
a).0.00785D^2
b).0.0785D^2
c).0.0112D^2
d).0.0673D^2
Correct Answer:
0.0673D^2
Explanation: