Civil Engineering
GATE CE topic:geomatics-engineering PYQs
Build your understanding with focused practice from past exam papers.
How to practice topic:geomatics-engineering
Attempt a question, record the concept and assumptions, then check the available answer. Rework mistakes after revising the relevant concepts. Topic tags can overlap; review the question context.
Questions 1–10 of 37. Imported answers require independent review unless marked reviewed.
Question 20
Open questionCEMCQ1 markNeeds review
The Whole Circle Bearing (WCB) of line AB is 150°. The length of AB is 100 m. The latitude and departure values, respectively, for this line are:
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Open questionCENAT1 markNeeds review
A 30 m long tape is standardized at 25 °C. It was used to measure the length of a line which came out to be 200 m. The temperature during the measurement was 35 °C. The coefficient of expansion of the tape was 11 × 10⁻⁶ per °C. The correction in the measured length (in mm) due to change in temperature is _____ (in integer).
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Open questionCENAT1 markNeeds review
The height of the plane of collimation of a leveling instrument is 100.000 m from a datum. The leveling instrument measures a Back Sight of 1.500 m on a vertically held staff at a ground point P. The reduced level (in m) of the ground point P with respect to the datum is ____________ (rounded off to three decimal places).
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Open questionCEMCQ2 marksNeeds review
Locations P and Q are separated by a wide valley. The difference in levels of locations P and Q measured by a levelling instrument stationed near P is 3.0 m. The same instrument stationed near Q measures the difference in levels of locations P and Q as −1.0 m. Assume that the atmosphere refraction is same during the measurements. The true difference in levels (in m) of locations P and Q is
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Open questionCENAT2 marksNeeds review
The following consecutive readings (in m) were taken with a dumpy level and a levelling staff at a common interval of 20 m:
0.35; 1.030; 1.925; 2.825; 3.730; 4.850; 1.045; 2.05; 3.30; 4.580
The dumpy level was shifted after taking the sixth reading.
The gradient (in %) of the ground between the first and the last location of the reading is _____ (in integer).
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Open questionCEMCQ1 markNeeds review
If the horizontal distance between a staff point and the point of observation is
, the error due to the curvature of earth is proportional toYour answerChoose one option.
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Open questionCEMCQ1 markNeeds review
If the quadrant bearing of a line is N30°W, then the whole circle bearing of the line is
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Open questionCENAT2 marksNeeds review
In leveling between two points A and B on the opposite banks of a river, the readings are taken by setting the instrument both at A and B, as shown in the table. If the RL of A is 150.000 m, the RL of B (in m) is __________ (rounded off to 3 decimal places).
Level position | Staff readings A | Staff readings B |
|---|---|---|
A | 1.800 | 1.350 |
B | 1.450 | 0.950 |
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Open questionce-1MCQ1 markNeeds review
If the number of sides resulting in a closed traverse is increased from three to four, the sum of the interior angles increases by
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A surveyor observes a zenith angle of 93° 00′ 00″ during a theodolite survey. The corresponding vertical angle is
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