Mine Surveying - Study Mode
[#81] The invar tape ismade of an alloy of . . . . . . . .
Correct Answer
(B) Steel and Nickel
[#82] The formule for correction of curvature in meters.
Correct Answer
(A) 0.0785 d 2
[#83] The fore bearing of a line is S 45° 45' E then back bearing will be . . . . . . . .
Correct Answer
(B) N 45° 45' W
[#84] The most commonly used datum is the . . . . . . . .
Correct Answer
(B) Mean sea level
[#85] The area of triangle whose sides are 30m, 40m and 50m is . . . . . . . .
Correct Answer
(A) 600m 2