Wednesday 25 January 2017

Surveying objective questions and answers pdf

91.   In Question no. 89, the R.L. of last point
a) is greater than R.L. of first point
b) is same as R.L. of first point
c) is smaller than R.L. of first point
d) cannot be determined from the given data
Ans: c

92. If the horizontal distance between the staff point and the point of observation is d, then the error due to curvature of earth is proportional to
a) d
b) 1/d
c) d2
d) 1/d2
Ans: c

93. Sensitiveness of a level tube is designated by
a) radius of level tube
b) length of level tube
c) length of bubble of level tube
d) none of the above
Ans: a

94. Which of the following statements is in-correct ?
a) Error due to refraction may not be completely eliminated by reciprocal levelling.
b) Tilting levels are commonly used for precision work.
c) The last reading of levelling is always a foresight.
d) All of the above statements are incorrect.
Ans: d

95. Dumpy level is most suitable when
a) the instrument is to be shifted frequ-ently
b) fly levelling is being done over long distance
c) many readings are to be taken from a single setting of the instrument
d) all of the above
Ans: c

96. The difference of levels between two stations A and B is to be determined. For best results, the instrument station should be
a) equidistant from A and B
b) closer to the higher station
c) closer to the lower station
d) as far as possible from the line AB
Ans: a

97. Contour interval is
a) inversely proportional to the scale of the map
b) directly proportional to the flatness of ground
c) larger for accurate works
d) larger if the time available is more
Ans: a

98. An imaginary line lying throughout the surface of ground and preserving a constant inclination to the horizontal is known as
a) contour line
b) horizontal equivalent
c) contour interval
d) contour gradient
Ans: d

99. The suitable contour interval for a map with scale 1 : 10000 is
a) 2 m
b) 5m
c) 10 m
d) 20 m
Ans: a

100. Select the correct statement.
a) A contour is not necessarily a closed curve.
b) A contour represents a ridge line if the concave side of lower value con¬tour lies towards the higher value contour.
c) Two contours of different elevations do not cross each other except in case of an overhanging cliff.
d) All of the above statements are correct.
Ans: c
Read More:-
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Surveying Multiple choice Questions and Answers Part6
Surveying Multiple choice Questions and Answers Part7
Surveying Multiple choice Questions and Answers Part8
Surveying Multiple choice Questions and Answers Part9
Surveying Multiple choice Questions and Answers Part10
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Survey camp viva questions and answers pdf

91.   In Question no. 89, the R.L. of last point
a) is greater than R.L. of first point
b) is same as R.L. of first point
c) is smaller than R.L. of first point
d) cannot be determined from the given data
Ans: c

92. The type of surveying which requires least office work is
a) tacheomefry
b) trigonometrical levelling
c) plane table surveying
d) theodolite surveying
Ans: c

93. Intersection method of detailed plotting is most suitable for
a) forests
b) urban areas
c) hilly areas
d) plains
Ans: c

94. Detailed plotting is generally done by
a) radiation
b) traversing
c) resection
d) all of the above
Ans: a

95. Three point problem can be solved by
a) Tracing paper method
b) Bessels method
c) Lehman's method
d) all of the above
Ans: d

96. If in a closed traverse, the sum of the north latitudes is more than the sum of the south latitudes and also the sum of west departures is more than the sum of the east departures, the bearing of the closing line is in the
a) NE quadrant
b) SE quadrant
c) NW quadrant
d) SW quadrant
Ans: b

97. If the reduced bearing of a line AB is N60°W and length is 100 m, then the latitude and departure respectively of the line AB will be
a) +50 m, +86.6 m
b) +86.6 m, -50 m
c) +50m, -86.6 m
d) +70.7 m,-50 m
Ans: b

98. If the horizontal distance between the staff point and the point of observation is d, then the error due to curvature of earth is proportional to
a) d
b) 1/d
c) d2
d) 1/d2
Ans: c

99. Sensitiveness of a level tube is designated by
a) radius of level tube
b) length of level tube
c) length of bubble of level tube
d) none of the above
Ans: a

100. Which of the following statements is in-correct ?
a) Error due to refraction may not be completely eliminated by reciprocal levelling.
b) Tilting levels are commonly used for precision work.
c) The last reading of levelling is always a foresight.
d) All of the above statements are incorrect.
Ans: d
Read More:-
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Surveying Multiple choice Questions and Answers Part6
Surveying Multiple choice Questions and Answers Part7
Surveying Multiple choice Questions and Answers Part8
Surveying Multiple choice Questions and Answers Part9
Surveying Multiple choice Questions and Answers Part10
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Most recently asked Surveying lab viva questions with answers pdf

81. The difference between a level line and a horizontal line is that
a) level line is a curved line while hori-zontal line is a straight line
b) level line is normal to plumb line while horizontal line may not be normal to plumb line at the tangent point to level line
c) horizontal line is normal to plumb line while level line may not be normal to the plumb line
d) both are same
Ans: a

82. The sensitivity of a bubble tube can be increased by
a) increasing the diameter of the tube
b) decreasing the length of bubble
c) increasing the viscosity of liquid
d) decreasing the radius of curvature of tube
Ans: a

83. With the rise of temperature, the sensiti¬vity of a bubble tube
a) decreases
b) increases
c) remains unaffected
d) none of the above
Ans: a

84.      Refraction correction
a) completely eliminates curvature cor-rection
b) partially eliminates curvature cor-rection
c) adds to the curvature correction
d) has no effect on curvature correction
Ans: b

85.   The R.L, of the point A which is on the floor is 100 m and backsight reading on A is 2.455 m. If the foresight reading on the point B which is on the ceiling is 2.745 m, the R.L. of point B will be
a) 94.80 m
b) 99.71 m
c) 100.29 m
d) 105.20 m
Ans: d

86. As applied to staff readings, the correc¬tions for curvature and refraction are respectively
The above table shows a part of a level field book. The value of X should be
a) 98.70
b) 100.00
c) 102.30
d) 103.30
Ans: b

87. For a tacheometer the additive and multi-plying constants are respectively
a) 0 and 100
b) 100 and 0
c) 0 and 0
d) 100 and 100
Ans: a

88. If the focal length of the object glass is 25 cm and the distance from object glass to the trunnion axis is 15 cm, the additive constant is
a) 0.1
b) 0.4
c) 0.6
d) 1.33
Ans: b

89. The number of horizontal cross wires in a stadia diaphragm is
a) one
b) two
c) three
d) four
Ans: c

90. In Question no. 89, the number of stations is "95.
a) 2
b) 5
c) 6
d) 7
Ans: d
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Surveying Multiple choice Questions and Answers Part6
Surveying Multiple choice Questions and Answers Part7
Surveying Multiple choice Questions and Answers Part8
Surveying Multiple choice Questions and Answers Part9
Surveying Multiple choice Questions and Answers Part10
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Mcqs on Surveying

71. A'level line'is a
a) horizontal line
b) line parallel to the mean spheriodal surface of earth
c) line passing through the centre of cross hairs and the centre of eye piece
d) line passing through the objective lens and the eye-piece of a dumpy or tilting level
Ans: b

72. The following sights are taken on a "turning point"
a) foresight only
b) backsight only
c) foresight and backsight
d) foresight and intermediate sight
Ans: c

73. The rise and fall method of levelling provides a complete check on
a) backsight
b) intermediate sight
c) foresight
d) all of the above
 Ans: d

74. If the R.L. of a B.M. is 100.00 m, the back- sight is 1.215 m and the foresight is 1.870 m, the R.L. of the forward station is
a) 99.345 m
b) 100.345 m
c) 100.655m
d) 101.870m
Ans: a

75. In an internal focussing type of telescope, the lens provided is
a) concave
b) convex
c) plano-convex
d) plano-concave
Ans: a

76. Which of the following errors can be neutralised by setting the level midway between the two stations ?
a) error due to curvature only
b) error due to refraction only
c) error due to both curvature and re-fraction
d) none of the above
Ans: c

77. Height of instrument method of levelling is
a) more accurate than rise and fall method
b) less accurate than rise and fall method
c) quicker and less tedious for large number of intermediate sights
d) none of the above
Ans: c

78. The rise and fall method
a) is less.accurate than height of instru-ment method
b) is not suitable for levelling with tilting levels
c) provides a check on the reduction of intermediate point levels
d) quicker and less tedious for large number of intermediate sights
Ans: c

79.   If the staff is not held vertical at a level¬ling station, the reduced level calculated from the observation would be
a) true R.L.
b) more than true R.L.
c) less than true R.L.
d) none of the above
Ans: c

80. Different grades are joined together by a
a) compound curve
b) transition curve
c) reverse curve
d) vertical curve
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Surveying: Multiple Choice Questions and Answers

61. The cross hairs in the surveying telescope are placed
a) midway between eye piece and objec¬tive lens
b) much closer to the eye-piece than to the objective lens
c) much closer to the objective lens than to the eye piece
d) anywhere between eye-piece and objective lens
Ans: b

62. For which of the following permanent adjustments of theodolite, the spire test is used ?
a) adjustment of plate levels
b) adjustment of line of sight
c) adjustment of horizontal axis
d) adjustment of altitude bubble and vertical index frame
Ans: c

63. The adjustment of horizontal cross hair is required particularly when the instrument is used for
a) levelling
b) prolonging a straight line
c) measurement of horizontal angles
d) all of the above
Ans: a

64. Which of the following errors is not eliminated by the method of repetition of horizontal angle measurement ?
a) error due to eccentricity of verniers
b) error due to displacement of station signals
c) error due to wrong adjustment of line of collimation and trunion axis
d) error due to inaccurate graduation
Ans: b

65. The error due to eccentricity of inner and outer axes can be eliminated by
a) reading both verniers and taking the mean of the two
b) taking both face observations and taking the mean of the two
c) double sighting
d) taking mean of several readings dis-tributed over different portions of the graduated circle
Ans: a

66. In the double application of principle of reversion, the apparent error is
a) equal to true error
b) half the true error
c) two times the true error
d) four times the true error
Ans: d

67. Which of the following errors can be eliminated by taking mean of botr> face observations ?
a) error due to imperfect graduations
b) error due to eccentricity of verniers
c) error due to imperfect adjustment of plate levels
d) error due to line of collimation not being perpendicular to horizontal axis
Ans: d

68. Which of the following errors cannot be eliminated by taking both face observa-tions ?
a)      error due to horizontal axis not being perpendicular to the vertical axis
b) index error i.e. error due to imperfect adjustment of the vertical circle vernier
c) error due to non-parallelism of thc-axis of telescope level and line of collimation
d) none of the above
Ans: d

69. If a tripod settles in the interval that elapses between taking a back sight reading and the following foresight
reading, then the elevation of turning point will
a) increase
b) decrease
c) not change
d) either 'a' or 'b'
Ans: a

70. 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
i)    altitude bubble on index frame
ii)   altitude bubble on index frame if it is to be used as a level
iii) altitude bubble on telescope
iv)  altitude bubble on telescope if it is to be used as a level The correct answer is
a) only (i)
b) both (i) and (iv)
c) only (iii)
d) both (ii) and (iii)
Ans: b
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Multiple choice questions on surveying and levelling pdf

51. Agate cap is fitted with a
a) cross staff
b) level
c) chain
d) prismatic compass
Ans: d

53. The temporary adjustments of a prismatic compass are
i)    Centering
ii)   Levelling
iii) Focusing the prism
The correct order is
a) (0, (iii), 00
b) (0, (ii), (iii)
c) (ii), (iii), 0)
d) (in), (i), (ii)
Ans: b

55. Theodolite is an instrument used for
a) tightening the capstan-headed nuts of level tube
b) measurement of horizontal angles only
c) measurement of vertical angles only
d) measurement of both horizontal and vertical angles
Ans: d

56. The process of turning the telescope about the vertical axis in horizontal plane is known as
a) transiting
b) reversing
c) plunging
d) swinging
Ans: d

57. Size of a theodolite is specified by
a) the length of telescope
b) the diameter of vertical circle
c) the diameter of lower plate
d) the diameter of upper plate
Ans: c

58. Which of the following is not the function of levelling head ?
a) to support the main part of the instru¬ment
b) to attach the theodolite to the tripod
c) to provide a means for levelling the theodolite
d) none of the above
Ans: d

59. If the lower clamp screw is tightened and upper clamp screw is loosened, the theodolite may be rotated
a) on its outer spindle with a relative motion between the vernier and graduated scale of lower plate
b) on its outer spindle without a relative motion between the vernier and gra-duated scale of lower plate
c) on its inner spindle with a relative motion between the vernier and the graduated scale of lower plate
d) on its inner spindle without a relative motion between the vernier and the graduated scale of lower plate
Ans: c

60. A telescope is said to be inverted if its
a) vertical circle is to its right and the bubble of the telescope is down
b) vertical circle is to its right and the bubble of the telescope is up
c) vertical circle is to its left and the bubble of the telescope is down
d) vertical circle is to its left and the bubble of the telescope is up
Ans: a
Read More:-
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Surveying Multiple choice Questions and Answers Part2
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Surveying Multiple choice Questions and Answers Part6
Surveying Multiple choice Questions and Answers Part7
Surveying Multiple choice Questions and Answers Part8
Surveying Multiple choice Questions and Answers Part9
Surveying Multiple choice Questions and Answers Part10
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Land Surveyor interview questions and answers pdf

41. For a line AB
a) the forebearing of AB and back bearing of AB differ by 180°
b) the forebearing of AB and back bearing of BA differ by 180°
c) both (a) and (b) are correct.
d) none is correct
Ans: a

42. Local attraction in compass surveying may exist due to
a) incorrect levelling of the magnetic needle
b) loss of magnetism of the needle
c) friction of the needle at the pivot
d) presence of magnetic substances near the instrument
Ans: d

45. In the quadrantal bearing system, a whole circle bearing of 293° 30' can be expressed as
a) W23°30'N
b) N66°30'W
c) S113°30'N
d) N23°30'W
Ans: b

46. The prismatic compass and surveyor's compass
a) give whole circle bearing (WCB) of a line and quadrantal bearing (QB) of a line respectively
b) both give QB of a line and WCB of a line
c) both give QB of a line
d) both give WCB of a line
Ans: a

47. The horizontal angle between the true meridian and magnetic meridian at a place is called
a) azimuth
b) declination
c) local attraction
d) magnetic bearing
Ans: b

48. A negative declination shows that the magnetic meridian is to the'
a) eastern side of the true meridian
b) western side of the true meridian
c) southern side of the true meridian
d) none of the above
Ans: b

49. If the magnetic bearing of the sun at a place at noon in southern hemisphere is 167°, the magnetic declination at that place is
a) 77° N
b) 23° S
c) 13° E
d) 13° W
Ans: c

50. The graduations in prismatic compass
i)    are inverted
ii) are upright
iii) run clockwise having 0° at south
iv) run clockwise having 0° at north
The correct answer is
a) (i) and (iii)
b) (i) and (iv)
c) (ii) and (iii)
d) (ii) and (iv)
Ans: a
Read More:-
Surveying Multiple choice Questions and Answers Part1
Surveying Multiple choice Questions and Answers Part2
Surveying Multiple choice Questions and Answers Part3
Surveying Multiple choice Questions and Answers Part4
Surveying Multiple choice Questions and Answers Part5
Surveying Multiple choice Questions and Answers Part6
Surveying Multiple choice Questions and Answers Part7
Surveying Multiple choice Questions and Answers Part8
Surveying Multiple choice Questions and Answers Part9
Surveying Multiple choice Questions and Answers Part10
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