Civil Engineering MCQs

2965 MCQs  (Page 32 of 297)

The graduations in prismatic compass_____________?
A. 1. are inverted
B. 2. are upright
C. 3. run clockwise having 0° at south
D. 4. run clockwise having 0° at north
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
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
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
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
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
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
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