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Civil Engineering Objective Questions { Advanced Surveying }



113. The rotation of aircraft about Z-axis, is designated by the letter
A. to, and is sometimes called 'roll'
B. 0, and is sometimes called 'pitch'
C. x, and is sometimes called 'swing'
D. none of these

114. The rotation of aircraft about Y-axis, is designated by the letter
A. co, and is sometimes called 'roll'
B. 0, and is sometimes called 'pitch'
C. x, and is sometimes called 'swing'
D. none of these

115. Pick up the correct statement from the following :
A. The plane passing through the perspective centre of a stereo pair and a ground point, is known as basal plane
B. Each pair of image points on stereo pair have their own basal plane
C. Relative orienation means reconstructing the basal plane
D. All the above.

116. 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.

117. By raising the z-column of right projector, maximum y-parallax is introduced in the model at
A. position 1
B. position 2
C. position 4
D. position 4 and 6.

118. By applying clockwise swing to right projector, maximum y- parallax is introduced in the model at
A. position 1
B. position 2
C. position 4
D. position 6.

119. The movement of the projector in y-direction, introduces in the model ay-parallax
A. maximum at position 1
B. maximum at position 2
C. maximum at position 5 and 6
D. equally throughout the model.

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