Mine Surveying - Study Mode
[#286] In prismatic compass, this enables focussing of readings to be done . . . . . . . .
Correct Answer
(B) Prisum stud
[#287] Speedometer may sometimes be utilised for . . . . . . . .
Correct Answer
(D) Aerial survey
[#288] The variation in declination which follows sine curve pattern (roller-costar] is
Correct Answer
(A) Diurnal
[#289] Abney level used to measure . . . . . . . .
Correct Answer
(C) Vertical angles
[#290] The accuracy of precise levelling for subsidence measurement is . . . . . . . .
Correct Answer
(A) 1 mm/km