List of top Geomatics Engineering Questions asked in GATE CE

Given the following values, calculate the required properties: \[ S = 0.67, \quad e = 0.6, \quad w = 0.15, \quad G = 2.67, \quad \gamma_w = 9.81 \, \text{kN/m}^3, \quad V = 5 \, \text{m}^3 \]
For a reconnaissance survey, it is necessary to obtain vertical aerial photographs of a terrain at an average scale of 1: 13000 using a camera. If the permissible flying height is assumed as 3000 m above a datum and the average terrain elevation is 1050 m above the datum, the required focal length (in mm) of the camera is
What is the CORRECT match between the survey instruments/parts of instruments shown in the table and the operations carried out with them ?
Instruments/Parts of instrumentsOperations
PBubble tubeiTacheometry
QPlumb bobiiMinor movements
RTangent screwiiiCentering
SStadia cross-wireivLevelling
To finalize the direction of a survey, four surveyors set up a theodolite at a station P and performed all the temporary adjustments. From the station P, each of the surveyors observed the bearing to a tower located at station Q with the same instrument without shifting it. The bearings observed by the surveyors are 30° 30' 00", 30° 29′ 40′′, 30° 30′ 20′′ and 30° 31′ 20′′. Assuming that each measurement is taken with equal precision, the most probable value of the bearing is
In general, the outer edge is raised above the inner edge in horizontal curves for
Which of the following statement(s) is/are CORRECT?
A surveyor observes a zenith angle of 93° 00' 00" during a theodolite survey. The corresponding vertical angle is
A map is prepared with a scale of 1:1000 and a contour interval of 1 m. If the distance between two adjacent contours on the map is 10 mm, the slope of the ground between the adjacent contours is
Among the following statements relating the fundamental lines of a transit theodolite, which one is CORRECT?
A bird is resting on a point P at a height of 8 m above the Mean Sea Level (MSL). Upon hearing a loud noise, the bird flies parallel to the ground surface and reaches a point Q which is located at a height of 3 m above MSL. The ground surface has a falling gradient of 1 in 2. Ignoring the effects of curvature and refraction, the horizontal distance (in meters) between points P and Q is ______ (in integer).
If the number of sides resulting in a closed traverse is increased from three to four, the sum of the interior angles increases by
The bearing of a survey line is N31°17′W. Its azimuth observed from north is \(\underline{\hspace{2cm}}\) degrees. (round off to two decimal places)
A line between stations P and Q laid on a slope of 1 in 5 was measured as 350 m using a 50 m tape. The tape is known to be short by 0.1 m. The corrected horizontal length (in m) of the line PQ will be:
An aerial photograph is taken from a flight at a height of 3.5 km above mean sea level, using a camera of focal length 152 mm. If the average ground elevation is 460 m above mean sea level, then the scale of the photograph is
If the magnetic bearing of the Sun at a place at noon is \( S 2^\circ E \), the magnetic declination (in degrees) at that place is
Match the following attributes of a city with the appropriate scale of measurements.
Which one of the following combinations is correct?
Traversing is carried out for a closed traverse PQRS. The internal angles at vertices P, Q, R, and S are measured as 92°, 68°, 123°, and 77°, respectively. If fore bearing of line PQ is 27°, fore bearing of line RS (in degrees, in integer) is \(\underline{\hspace{1cm}}\).
Which of the following is/are correct statement(s)?
Which of the following is NOT a correct statement?
In general, the CORRECT sequence of surveying operations is

A horizontal angle \( \theta \) is measured by four different surveyors multiple times and the values reported are given below. 

\[ \begin{array}{|c|c|c|} \hline \text{Surveyor} & \text{Angle \( \theta \)} & \text{Number of observations} \\ \hline 1 & 36^\circ 30' & 4 \\ 2 & 36^\circ 00' & 3 \\ 3 & 35^\circ 30' & 8 \\ 4 & 36^\circ 30' & 4 \\ \hline \end{array} \] 

The most probable value of the angle \( \theta \) (in degree, round off to two decimal places) is \(\underline{\hspace{1cm}}\). 
 

For a given traverse, latitudes and departures are calculated and it is found that sum of latitudes is equal to +2.1 m and the sum of departures is equal to -2.8 m. The length and bearing of the closing error, respectively, are