1. are inverted
2. are upright
3. run clockwise having 0° at south
4. run clockwise having 0° at north
The correct answer is ?
A. (1) and (3)
B. (1) and (4)
C. (2) and (3)
D. (2) and (4)
Related Mcqs:
- In the prismatic compass______________?
A. the magnetic needle moves with the box
B. the line of the sight does not move with the box
C. the magnetic needle and graduated circle do not move with the box
D. the graduated circle is fixed to the box and the magnetic needle always remains in the N-S direction - The prismatic compass and surveyor’s compass________________?
A. give whole circle bearing (WCB. of a line and quadrantal bearing (QB. of a line respectively
B. both give QB of a line and WCB of a line
C. both give QB of a line
D. both give WCB of a line - The allowable length of an offset depends upon the______________?
A. degree of accuracy required
B. method of setting out the perpendiculars and nature of ground
C. scale of plotting
D. all of the above - Normal tension is that pull which_______________?
A. is used at the time of standardising the tape
B. neutralizes the effect due to pull and sag
C. makes the correction due to sag equal to zero
D. makes the correction due to pull equal to zero - Which of the following errors cannot be eliminated by taking both face observations ?
A. error due to horizontal axis not being perpendicular to the vertical axis
B. index error i.e. error due to imperfect adjustment of the vertical circle vernier
C. error due to non-parallelism of the axis of telescope level and line of collimation
D. none of the above - 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 - A’level line’is a______________?
A. horizontal line
B. line parallel to the mean spheriodal surface of earth
C. line passing through the center of cross hairs and the center of eye piece
D. line passing through the objective lens and the eye-piece of a dumpy or tilting level - With the rise of temperature, the sensitivity of a bubble tube______________?
A. decreases
B. increases
C. remains unaffected
D. none of the above - The size of a plane table is________________?
A. 750 mm x 900 mm
B. 600 mm x 750 mm
C. 450 mm x 600 mm
D. 300 mm x 450 mm - Horizontal distances obtained by thermometric observations_________________?
A. require slope correction
B. require tension correction
C. require slope and tension corrections
D. do not require slope and tension corrections
