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Question

Match the following.
i)horizontala)is the angle between line of sight and the horizontallevellevel when the object is above the horizontal line.ii)line of sightb)is the line running parallel to the plane onwhich the object is kept.iii)angle ofc)is the lined drawn from the eye of the observer to theelevationpoint in the object viewed by the observer.iv)angle ofd)is the angle between line of sight and the horizontaldepressionlevel when the object is below the horizontal line.


A

(i) - c , (ii) - a , (iii) - d, (iv) - b

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B

(i) - b , (ii) - c , (iii) - a, (iv) - d

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C

(i) - a , (ii) - b , (iii) - c, (iv) - d

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D

(i) - d , (ii) - c , (iii) - b, (iv) - a

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Solution

The correct option is B

(i) - b , (ii) - c , (iii) - a, (iv) - d


1. Horizontal level is the line running parallel to the plane on which the object is kept.
2. The line of sight is the line drawn from the eye of the observer to the point in the object viewed by the observer.
3. Angle of elevation is the angle between line of sight and the horizontal level when the object is above the horizontal line and,
4. Angle of depression is the angle between the line of sight and the horizontal level when the object is below the horizontal line.


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