Surveying The elevation of the star at elongation is obtained by sin α = cos φ cosec δ sin α = cos φ sec δ sin α = sin φ sec δ sin α = sin φ cosec δ sin α = cos φ cosec δ sin α = cos φ sec δ sin α = sin φ sec δ sin α = sin φ cosec δ ANSWER DOWNLOAD EXAMIANS APP
Surveying The rise and fall method of levelling provides a complete check on backsight intermediate sight foresight All of these backsight intermediate sight foresight All of these ANSWER DOWNLOAD EXAMIANS APP
Surveying Invar tapes used for measuring base lines, is made of nickel-iron alloy containing nickel 0.6 0.4 0.36 0.24 0.6 0.4 0.36 0.24 ANSWER DOWNLOAD EXAMIANS APP
Surveying The difference between a level line and a horizontal line is that level line is normal to plumb line while horizontal line may not be normal to plumb line at the tangent point to level line both are same horizontal line is normal to plumb line while level line may not be normal to the plumb line level line is a curved line while hori-zontal line is a straight line level line is normal to plumb line while horizontal line may not be normal to plumb line at the tangent point to level line both are same horizontal line is normal to plumb line while level line may not be normal to the plumb line level line is a curved line while hori-zontal line is a straight line ANSWER DOWNLOAD EXAMIANS APP
Surveying Different grades are joined together by a Compound curve Reverse curve Vertical curve Transition curve Compound curve Reverse curve Vertical curve Transition curve ANSWER DOWNLOAD EXAMIANS APP
Surveying The point where a vertical line through the optical centre of the camera lens intersects the ground, is known as Perspective centre Ground principal point Iso-centre Ground plumb point Perspective centre Ground principal point Iso-centre Ground plumb point ANSWER DOWNLOAD EXAMIANS APP
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