The difference between a level line and a horizontal line is that
A) level line is a curved line while hori-zontal line is a straight line
B) level line is normal to plumb line while horizontal line may not be normal to plumb line at the tangent point to level line
C) horizontal line is normal to plumb line while level line may not be normal to the plumb line
D) both are same
Correct Answer:
Verified
Q1: Which of the following errors can be
Q2: Height of instrument method of levelling is
A)more
Q3: The rise and fall method
A)is less.accurate than
Q4: If the staff is not held vertical
Q6: The sensitivity of a bubble tube can
Q7: With the rise of temperature, the sensitivity
Q8: Refraction correction
A)completely eliminates curvature correction
B)partially eliminates curvature
Q9: The R.L, of the point A which
Q10: As applied to staff readings, the corrections
Q11: Sensitiveness of a level tube is designated
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