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Surveying FS

Category - Data Acquisition

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Which of the following is not a component of a telescopic sight common to levels and transits?

Objective lens
Offensive lens
Focusing lens
Reticle

Explanation

Answer: B - An offensive lens is not a telescopic sight component.

The objective lens is located at the forward end of the sight and forms an image within the telescope. The focusing lens is moved back and forth to focus on the cross hairs provided by the reticle located near the end of the tube in a telescopic sight.

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