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
Related Mcqs:
- 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 graduations in prismatic compass_____________?
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) - Cross staff is an instrument used for________________?
A. measuring approximate horizontal angles
B. setting out right angles
C. measuring bearings of the lines
D. none of the above - A negative declination shows that the magnetic meridian is to the________________?
A. eastern side of the true meridian
B. western side of the true meridian
C. southern side of the true meridian
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 - In the double application of principle of reversion, the apparent error is_______________?
A. equal to true error
B. half the true error
C. two times the true error
D. four times the true error - The R.L, of the point A which is on the floor is 100 m and back sight reading on A is 2.455 m. If the foresight reading on the point B which is on the ceiling is 2.745 m, the R.L. of point B will be_______________?
A. 94.80 m
B. 99.71 m
C. 100.29 m
D. 105.20 m - Sensitiveness of a level tube is designated by______________?
A. radius of level tube
B. length of level tube
C. length of bubble of level tube
D. none of the above - The process of determining the locations of the instrument station by drawing re sectors from the locations of the known stations is called_________________?
A. radiation
B. intersection
C. resection
D. traversing - If the intercept on a vertical staff is ob-served as 0.75 m from a tacheometer, the horizontal distance between tacheometer and staff station is________________?
A. 7.5 m
B. 25 m
C. 50
D. 75 m
