Engineering Survey

41) with the rise of temperature, the sensitivity of a bubble tube

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decreases

42) Refraction correction

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partially eliminates curvature correction

43) Height of instrument method of levelling

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quicker and less tedious for large number of intermediate sights

44) In an internal focusing type of telescope, the lens provided is

Discuss in Comment

concave

45) Which of the following errors neutralized by setting the level between the two stations

Discuss in Comment

error due to both curvature fraction

46) The cross hairs in the surveying telescope are placed

Discuss in Comment

much closer to the eye-piece than to the objective lens

47) Which of the following is not the function of levelling head?

Discuss in Comment

none of the above

48) Size of a theodolite is specified

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the diameter of lower plate

49) Theodolite is an instrument used for

Discuss in Comment

measurement of both horizontal and vertical angles

50) The process of turning the telescope about the vertical axis in horizontal plane is known as

Discuss in Comment

swinging

Subject Notes

Objective Box

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