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Principles of Surveying & Cartography

19 Questions
GATE→2026→Geomatics Engineering→Principles of Surveying & Cartography
Q1
MCQ[1 Mark]
The Whole Circle Bearing (WCB) of line AB is 150∘150^{\circ}. The length of AB is 100 m. The latitude and departure values, respectively, for this line are:
GATE→2026→Geomatics Engineering→Principles of Surveying & Cartography
Q2
NAT[1 Mark]
A 30 m long tape is standardized at 25∘C25^{\circ}\text{C} and used to measure a 200 m line at 35∘C35^{\circ}\text{C}. Coefficient of expansion = 11×10−6/∘C11 \times 10^{-6}/^{\circ}\text{C}. Temperature correction in mm is
GATE→2026→Geomatics Engineering→Principles of Surveying & Cartography
Q3
NAT[1 Mark]
The height of the plane of collimation of a levelling instrument is 100.000 m. Back Sight = 1.500 m on staff at ground point P. Reduced level of P is
GATE→2026→Geomatics Engineering→Principles of Surveying & Cartography
Q4
MCQ[2 Marks]
Locations P and Q are separated by a wide valley. Level difference measured near P is 3.0 m, and near Q is -1.0 m. True difference in levels (in m) is
GATE→2026→Geomatics Engineering→Principles of Surveying & Cartography
Q5
NAT[2 Marks]
Consecutive staff readings taken at 20 m intervals. Instrument shifted after 6th reading. The gradient (in %) of the ground between the first and last location is
GATE→2025→Geomatics Engineering→Principles of Surveying & Cartography
Q6
MCQ[1 Mark]
If the horizontal distance between a staff point and point of observation is dd, the error due to curvature of earth is proportional to
GATE→2025→Geomatics Engineering→Principles of Surveying & Cartography
Q7
MCQ[1 Mark]
If the quadrantal bearing of a line is N30∘WN 30^{\circ} W, then the whole circle bearing of the line is
GATE→2025→Geomatics Engineering→Principles of Surveying & Cartography
Q8
NAT[2 Marks]
Reciprocal levelling between A and B on opposite banks. If RL of A is 150.000 m, RL of B is
GATE→2024→Geomatics Engineering→Principles of Surveying & Cartography
Q9
MCQ[1 Mark]
If the number of sides resulting in a closed traverse is increased from three to four, the sum of the interior angles increases by
GATE→2024→Geomatics Engineering→Principles of Surveying & Cartography
Q10
MCQ[1 Mark]
A surveyor observes a zenith angle of 93∘00′00′′93^{\circ}00'00'' during a theodolite survey. The corresponding vertical angle is
GATE→2024→Geomatics Engineering→Principles of Surveying & Cartography
Q11
MCQ[1 Mark]
Among the following statements relating the fundamental lines of a transit theodolite, which one is CORRECT?
GATE→2024→Geomatics Engineering→Principles of Surveying & Cartography
Q12
MCQ[2 Marks]
A map is prepared with scale 1:1000 and contour interval 1 m. Distance between adjacent contours on map is 10 mm. Ground slope is
GATE→2024→Geomatics Engineering→Principles of Surveying & Cartography
Q13
NAT[2 Marks]
A bird flies from point P (8 m above MSL) to point Q (3 m above MSL) parallel to ground. Ground surface falling gradient is 1 in 2. Horizontal distance (in meters) between P and Q is
GATE→2023→Geomatics Engineering→Principles of Surveying & Cartography
Q14
MCQ[1 Mark]
Direct and reversed zenith angles observed by theodolite are 56∘00′00′′56^{\circ}00'00'' and 303∘00′00′′303^{\circ}00'00''. Vertical collimation correction is
GATE→2023→Geomatics Engineering→Principles of Surveying & Cartography
Q15
MCQ[1 Mark]
A student scans a 10×1010 \times 10 inch certificate at 600 dpi. Percentage reduction in number of pixels when scanned at 300 dpi is
GATE→2023→Geomatics Engineering→Principles of Surveying & Cartography
Q16
NAT[2 Marks]
Trigonometric leveling from stations P and Q to top of hillock. Distance PQ = 55 m. RL of top of hillock (in m) is
Figure for Question 16
GATE→2022→Geomatics Engineering→Principles of Surveying & Cartography
Q17
MCQ[1 Mark]
Aerial photograph from flight height 3.5 km above MSL, focal length 152 mm, average ground elevation 460 m above MSL. Scale of photograph is
GATE→2022→Geomatics Engineering→Principles of Surveying & Cartography
Q18
MCQ[1 Mark]
A line between P and Q laid on slope 1 in 5 measured as 350 m using 50 m tape short by 0.1 m. Corrected horizontal length (in m) is
GATE→2022→Geomatics Engineering→Principles of Surveying & Cartography
Q19
NAT[1 Mark]
Bearing of survey line is N31∘17′WN 31^{\circ}17' W. Its azimuth observed from north (in degrees) is