Which of the following statement is correct?
A)In levelling, the effect of curvature is to decrease the staff reading.
B)The effect of refraction in levelling is to increase the staff reading.
C)The combined effect of curvature and refraction in levelling is to increase the staff reading.
D)all of the above

Question

Quizplus · Accepted Answer

The Answer of Which of the following statement is correct?
A)In levelling, the effect of curvature is to decrease the staff reading.
B)The effect of refraction in levelling is to increase the staff reading.
C)The combined effect of curvature and refraction in levelling is to increase the staff reading.
D)all of the above

Which of the Following Statement Is Correct