If the distance between the projectors is altered by a movement along X-axis of one projector,
A. The length of the air base is increased
B. The scale of the model is altered
C. y-parallax is not affected
D. All the above
Answer: Option D
Related Questions on Surveying
A series of closely spaced contour lines represents a
A. steep slope
B. gentle slope
C. uniform slope
D. plane surface
The altitude of a circumpolar star is maximum when it is
A. At east elongation
B. At upper culmination
C. At west elongation
D. At lower culmination
International Date Line is located along
A. Standard meridian
B. Greenwich meridian
C. Equator
D. 180° longitude
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