Mine Surveying - Study Mode
[#156] Buildings are set on the ground by . . . . . . . .
Correct Answer
(A) Centre lines of each wall
[#157] The variations produced by the oscillation of a magnetic needle from its mean position during the day . . . . . . . .
Correct Answer
(D) Diurnal variation
[#158] The tacheometric surveying is adopted in . . . . . . . . terrain.
Correct Answer
(B) Rough and difficult terrain
[#159] The closing error in plotting closed traverse survey is . . . . . . . .
Correct Answer
(C) Due to error in both linear and angulars measurement
[#160] The F.B of a line AB is 145° and that of BC is 58° the angle ABC.
Correct Answer
(B) 93°