Civil Engineering
GATE CE Geomatics Engineering PYQs
Build your understanding with focused practice from past exam papers.
Questions 11–20 of 37. Imported answers require independent review unless marked reviewed.
Question 27
Open questionce-1MCQ1 markNeeds review
Among the following statements relating the fundamental lines of a transit theodolite, which one is CORRECT?
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Open questionCE2MCQ1 markNeeds review
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 300 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
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 31
Open questionCE2MCQ1 markNeeds review
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 instruments | Operations |
|---|---|
P - Bubble tube
Q - Plumb bob
R - Tangent screw
S - Stadia cross-wire | i - Tacheometry
ii - Minor movements
iii - Centering
iv - Leveling |
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 32
Open questionCE2MCQ1 markNeeds review
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
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 45
Open questionce-1MCQ2 marksNeeds review
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
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 65
Open questionce-1NAT2 marksNeeds review
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).
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 65
Open questionCE2NAT2 marksNeeds review
Differential leveling is carried out from point P (BM: +200.000 m) to point R. The readings taken are given in the table.
| Points | Back Sight (m) | Fore Sight (m) | Remarks |
| P | (−)2.050 | | BM: +200.000 m |
| Q | 1.050 | 0.950 | Q is a change point |
| R | | (−)1.655 | |
Reduced Level (in meters) of the point R is ____ (rounded off to 3 decimal places).
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Open questionCE-2MCQ1 markNeeds review
The magnetic bearing of the sun for a location at noon is 183° 30′. If the sun is exactly on the geographic meridian at noon, the magnetic declination of the location is ________.
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Open questionCE-2MCQ2 marksNeeds review
A delivery agent is at a location R. To deliver the order, she is instructed to travel to location P along straight-line paths of RC, CA, AB and BP of 5 km each. The direction of each path is given in the table below as whole circle bearings. Assume that the latitude (L) and departure (D) of R is (0, 0) km. What is the latitude and departure of P (in km, rounded off to one decimal place)?
Paths | RC | CA | AB | BP |
|---|---|---|---|---|
Directions (in degrees) | 120 | 0 | 90 | 240 |
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 23
Open questionCEMCQ1 markNeeds review
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
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