Examveda
Examveda

A star is said to elongate

A. When the star momentarily moves vertically

B. When the angle at the star of the spherical triangle is 90°

C. When the star

D. All the above

Answer: Option D

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Related Questions on Surveying

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