MCQ Questions Civil Engineering Surveying
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MCQ Questions Civil Engineering Surveying - Set - 4
Question 1:
The error due to eccentricity of inner and outer axes can be eliminated by
a) reading both verniers and taking the mean of the two
b) taking both face observations and taking the mean of the two
c) double sighting
d) taking mean of several readings distributed over different portions of the graduated circle
Correct Answer – (A)
Question 2 :
The adjustment of horizontal cross hair is required particularly when the instrument is used for
a) leveling
b) prolonging a straight line
c) measurement of horizontal angles
d) all of the above
Correct Answer – (A)
Question 3 :
The cross hairs in the surveying telescope are placed
a) midway between eye piece and objec¬tive lens
b) much closer to the eye-piece than to the objective lens
c) much closer to the objective lens than to the eye piece
d) anywhere between eye-piece and objective lens
Correct Answer – (B)
Question 4 :
If the lower clamp screw is tightened and upper clamp screw is loosened, the theodolite may be rotated
a) on its outer spindle with a relative motion between the vernier and graduated scale of lower plate
b) on its outer spindle without a relative motion between the vernier and gra-duated scale of lower plate
c) on its inner spindle with a relative motion between the vernier and the graduated scale of lower plate
d) on its inner spindle without a relative motion between the vernier and the graduated scale of lower plate
Correct Answer – (C)
Question 5 :
Size of a theodolite is specified by
a) the length of telescope
b) the diameter of vertical circle
c) the diameter of lower plate
d) the diameter of upper plate
Correct Answer – (C)
MCQ Questions Civil Engineering Surveying
Question 6:
Which of the following errors is not eliminated by the method of repetition of horizontal angle measurement ?
a) error due to eccentricity of verniers
b) error due to displacement of station signals
c) error due to wrong adjustment of line of collimation and trunnion axis
d) error due to inaccurate graduation
Correct Answer – (B)
Question 7:
For which of the following permanent adjustments of theodolite, the spire test is used ?
a) adjustment of plate levels
b) adjustment of line of sight
c) adjustment of horizontal axis
d) adjustment of altitude bubble and vertical index frame
Correct Answer – (C)
Question 8:
A telescope is said to be inverted if its
a) vertical circle is to its right and the bubble of the telescope is down
b) vertical circle is to its right and the bubble of the telescope is up
c) vertical circle is to its left and the bubble of the telescope is down
d) vertical circle is to its left and the bubble of the telescope is up
Correct Answer – (A)
Question 9:
Which of the following is not the function of levelling head ?
a) to support the main part of the instrument
b) to attach the theodolite to the tripod
c) to provide a means for leveling the theodolite
d) none of the above
Correct Answer – (D
Question 10:
The process of turning the telescope about the vertical axis in horizontal plane is known as
a) transiting
b) reversing
c) plunging
d) swinging
Correct Answer – (D)
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