500 Best Surveying MCQ
Q105). The vertical distance above or below the datum is called
a).reduced level of the point
b).elevation of the point
c).height of the instrument
d).either A or B
Correct Answer:
either A or B
Explanation:
Q106). A back sight indicated the ………… of the instrument.
a).shifting
b).setting up
c).height
d).none of these
Correct Answer:
setting up
Explanation:
Q107). A fixed point of reference of known elevation is called
a).change point
b).station point
c).bench mark
d).datum
Correct Answer:
bench mark
Explanation:
Q108). An imaginary line tangential to the longitudinal curve of the bubble tube at its middle point is called
a).axis of telescope
b).axis of level tube
c).level line
d).line of collimation
Correct Answer:
axis of level tube
Explanation:
Q109). A staff reading taken on a bench mark or a point of known elevation is called
a).fore sight reading
b).back sight reading
c).intermediate sight
d).any one of these
Correct Answer:
back sight reading
Explanation:
Q110). A staff reading taken on a point whose elevation is to be determined as on a change point is called
a).fore sight reading
b).back sight reading
c).intermediate sight
d).none of these
Correct Answer:
fore sight reading
Explanation:
Q111). The height of instrument is equal to
a).reduced level of bench mark + back sight
b).reduced level of bench mark + fore sight
c).reduced level of bench mark + intermediate sight
d).back sight + fore sight
Correct Answer:
reduced level of bench mark + back sight
Explanation:
Q112). A method of differential levelling is used in order to find the difference in elevation between two points when
a).they are too for apart
b).there are obstacles between them
c).the difference in elevation between them is too great
d).all of the above
Correct Answer:
all of the above
Explanation: