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Surveying Quiz | Surveying MCQs and Answers

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Questions
81 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

Answer: 0.4
82 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

Answer: 0 and 100
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83 If the intercept on a vertical staff is ob-served as 0.75 m from a tacheometer, the horizontal distance between tacheometer and staff station is
A 7.5 m
B 25 m
C 50
D 75 m

Answer: 75 m
84 The number of horizontal cross wires in a stadia diaphragm is
A one
B two
C three
D four

Answer: three
85 Horizontal distances obtained by thermometric observations
A require slope correction
B require tension correction
C require slope and tension corrections
D do not require slope and tension corrections

Answer: do not require slope and tension corrections
86 Subtense bar is an instrument used for
A levelling
B measurement of horizontal distances in plane areas
C measurement of horizontal distances in undulated areas
D measurement of angles

Answer: measurement of horizontal distances in undulated areas
87 Which of the following methods of theodolite traversing is suitable for locating the details which are far away from transit stations ?
A measuring angle and distance from one transit station
B measuring angles to the point from at least two stations
C measuring angle at one station and distance from other
D measuring distance from two points on traverse line

Answer: measuring angles to the point from at least two stations
88 Transit rule of adjusting the consecutive coordinates of a traverse is used where
A linear and angular measurements of the traverse are of equal accuracy
B angular measurements are more accurate than linear measurements
C linear measurements are more accurate than angular measurements
D all of the above

Answer: angular measurements are more accurate than linear measurements
89 The angle between the prolongation of the preceding line and the forward line of a traverse is called
A deflection angle
B included angle
C direct angle
D none of the above

Answer: deflection angle
90 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

Answer: +86.6 m, -50 m
91 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

Answer: SE quadrant
92 Bowditch rule is applied to
A an open traverse for graphical adjustment
B a closed traverse for adjustment of closing error
C determine the effect of local attraction
D none of the above

Answer: a closed traverse for adjustment of closing error
93 After fixing the plane table to the tripod, the main operations which are needed at each plane table station are

i) levelling

ii) orientation

iii) centering

The correct sequence of these operations is
A (i), (ii),.(iii)
B (i), (iii), (ii)
C (iii), (i), (ii)
D (ii), (Hi), (i)

Answer: (i), (iii), (ii)
94 The methods used for locating the plane table stations are

i) radiation

ii) traversing

iii) intersection

iv) resection

The correct answer is
A (i) and (ii)
B (iii) and (iv)
C (ii) and (iv)
D (i) and (iii)

Answer: (ii) and (iv)
95 The resection by two point problem as compared to three point problem
A gives more accurate problem
B takes less time
C requires more labour
D none of the above

Answer: requires more labour
96 The two point problem and three point problem are methods of
A resection
B orientation
C traversing
D resection and orientation

Answer: resection and orientation
97 Which of the following methods of plane table surveying is used to locate the position of an inaccessible point ?
A radiation
B intersection
C traversing
D resection

Answer: intersection
98 The instrument used for accurate centering in plane table survey is
A spirit level
B alidade
C plumbing fork
D trough compass

Answer: plumbing fork
99 The process of determining the locations of the instrument station by drawing re sectors from the locations of the known stations is called
A radiation
B intersection
C resection
D traversing

Answer: resection
100 The size of a plane table is
A 750 mm x 900 mm
B 600 mm x 750 mm
C 450 mm x 600 mm
D 300 mm x 450 mm

Answer: 600 mm x 750 mm