surveying MCQs – Page 5

Practise focused surveying questions with marked answers for exam preparation and subject revision.

surveying Mcqs
83. If altitude bubble is provided both on index frame as well as on telescope of a theodolite, then the instrument is levelled with reference to_________________?
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A. altitude bubble on index frame if it is to be used as a level

B. altitude bubble on telescope if it is to be used as a level

C. altitude bubble on index frame

D. correct answer is?

E. altitude bubble on telescope

84. Normal tension is that pull which_______________?
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A. neutralizes the effect due to pull and sag

B. makes the correction due to sag equal to zero

C. makes the correction due to pull equal to zero

D. is used at the time of standardising the tape

85. The cross hairs in the surveying telescope are placed_____________?
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A. much closer to the objective lens than to the eye piece

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

C. midway between eye piece and objective lens

D. anywhere between eye-piece and objective lens

86. If the lower clamp screw is tightened and upper clamp screw is loosened, the theodolite may be rotated____________?
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A. on its inner spindle with a relative motion between the vernier and the graduated scale of lower plate

B. on its outer spindle with a relative motion between the vernier and graduated scale of lower plate

C. on its outer spindle without a relative motion between the vernier and gra-duated scale of lower plate

D. on its inner spindle without a relative motion between the vernier and the graduated scale of lower plate

87. Benchmark is established by________________?
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A. trigonometrical levelling

B. barometric levelling

C. hypsometry

D. spirit levelling
88. Select the correct statement_______________?
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A. A contour is not necessarily a closed curve

B. Two contours of different elevations do not cross each other except in case of an overhanging cliff

C. A contour represents a ridge line if the concave side of lower value contour lies towards the higher value contour

D. All of the above statements are correct

89. Select the correct statement?
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A. Slope of a hill cannot be determined with the help of contours

B. Contour interval on any map is kept constant

C. Inter-visibility of points on a contour map cannot be ascertained

D. Direct method of contouring is cheaper than indirect method

90. Contour interval is_______________?
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A. larger if the time available is more

B. larger for accurate works

C. inversely proportional to the scale of the map

D. directly proportional to the flatness of ground

92. Horizontal distances obtained by thermometric observations_________________?
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A. require slope and tension corrections

B. require slope correction

C. require tension correction

D. do not require slope and tension corrections
93. Which of the following methods of theodolite traversing is suitable for locating the details which are far away from transit stations ?
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A. measuring angle and distance from one transit station

B. measuring angles to the point from at least two stations

C. measuring distance from two points on traverse line

D. measuring angle at one station and distance from other

94. The sensitivity of a bubble tube can be increased by________________?
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A. increasing the diameter of the tube

B. increasing the viscosity of liquid

C. decreasing the length of bubble

D. decreasing the radius of curvature of tube

95. The resection by two point problem as compared to three point problem_______________?
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A. requires more labour

B. takes less time

C. gives more accurate problem

D. none of the above

96. Which of the following is not the function of levelling head ?
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A. to support the main part of the instrument

B. none of the above

C. to provide a means for leveling the theodolite

D. to attach the theodolite to the tripod

97. The allowable length of an offset depends upon the______________?
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A. degree of accuracy required

B. scale of plotting

C. all of the above

D. method of setting out the perpendiculars and nature of ground

98. In the cross-section method of indirect contouring, the spacing of cross-sections depends upon_____________?
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A. characteristics of ground

B. correct answer is ?

C. scale of plan

D. contour interval

99. Different grades are joined together by a ________________?
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A. compound curve

B. reverse curve

C. vertical curve

D. transition curve

100. A telescope is said to be inverted if its______________?
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A. vertical circle is to its left and the bubble of the telescope is up

B. vertical circle is to its right and the bubble of the telescope is down

C. vertical circle is to its right and the bubble of the telescope is up

D. vertical circle is to its left and the bubble of the telescope is down