Q. The vertical circle is a circular graduated arc attached to the ______ axis of the telescope.

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Q. By means of vertical circle clamp and its corresponding ___________ the telescope can be set accurately at any desired position in the vertical plane.

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Q. The index frame is ______ shaped frame.

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Q. In theodolites, two standards resemble the letter ______

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Q. Which of the following is not a function of levelling head?

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Q. In theodolites, the upper plate carriers two plate levels placed at right angles to each other.

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Q. The plate level can be centered with the help of _______

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Q. On clamping the upper screw and unclamping the lower clamp, the instrument can rotate on its outer axis without any relative motion between the two plates.

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Q. On unclamping the upper screw and clamping the lower clamp, the instrument can rotate on its inner axis with relative motion between vernier and scale.

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Q. Which of the following is used to test the horizontality of the transit axis or trunnion axis?

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Q. Temporary adjustments are those which are made at every instrument setting and preparatory to taking observations.

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Q. Setting up includes which of the following?

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Q. Parallax is a condition arising when the image formed by the object is in the plane of the cross hairs.

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Q. Parallax can be eliminated by focusing the eye piece and objective.

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Q. For adjustment purposes, the index arm can be rotated slightly with the help of a ________ screw.

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Q. To measure the horizontal angle which of the following is the first step?

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Q. After setting up the instrument first thing done by the surveyor is _________

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Q. The method of repetition is used to measure a horizontal angle to a finer degree of accuracy than that obtained with the least count of the vernier.

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Q. After levelling of an instrument is done what is the next up?

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Q. To measure a horizontal angle, after releasing all clamps, we turn the upper and lower plates in the same direction.

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