Recent questions and answers in Geomatics Engineering

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1

GATE Civil 2021 Set 2 | Question: 5
In general, the $\text{CORRECT}$ sequence of surveying operations is Field observations $\rightarrow$ Reconnaissance $\rightarrow$ Data analysis $\rightarrow$ Map making Data analysis $\rightarrow$ Reconnaissance $\rightarrow$ Field ... $\rightarrow$ Data analysis $\rightarrow$ Field observations $\rightarrow$ Map making

go_editor asked in Geomatics Engineering Mar 1, 2021

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2

GATE Civil 2021 Set 2 | Question: 25
A horizontal angle $\theta$ ... $\theta$ ( in degree, $\textit{round off to two decimal places}$is _________________

go_editor asked in Geomatics Engineering Mar 1, 2021

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3

GATE Civil 2021 Set 2 | Question: 34
For a given traverse, latitudes and departures are calculated and it is found that sum of latitudes is equal to $\text{+2.1 m}$ and the sum of departures is equal to $\text{-2.8 m}$. The length and bearing of the closing error, respectively, are $\text{3.50 m}$ ... $53.13^{\circ}$ $\text{SE}$ $\text{3.50 m}$ and $53.13^{\circ}$ $\text{SE}$

go_editor asked in Geomatics Engineering Mar 1, 2021

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4

GATE Civil 2021 Set 1 | Question: 16
Which of the following is $\text{NOT}$ a correct statement? The first reading from a level station is a 'Fore Sight' Basic principle of surveying is to work from whole to parts Contours of different elevations may intersect each other in case of an overhanging cliff Planimeter is used for measuring 'area'

Arjun asked in Geomatics Engineering Feb 20, 2021

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5

GATE Civil 2021 Set 1 | Question: 17
Which of the following is/are correct statement$\text{(s)}$? Back Bearing of a line is equal to Fore Bearing $\pm 180^{\circ}$ If the whole circle bearing of a line is $270^{\circ}$ ... line In the case of fixed hair stadia tachometry, the staff intercept will be larger, when the staff is held nearer to the observation point

Arjun asked in Geomatics Engineering Feb 20, 2021

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6

GATE Civil 2021 Set 1 | Question: 55
Traversing is carried out for a closed traverse $\text{PQRS}$. The internal angles at vertices $\text{P, Q, R and S}$ are measured as $92^{\circ},68^{\circ},123^{\circ}$ and $77^{\circ}$, respectively. If fore bearing of line $\text{PQ}$ is $27^{\circ}$, fore bearing of line $\text{RS}$ (in degrees, in integer) is ___________________

Arjun asked in Geomatics Engineering Feb 20, 2021

by Arjun

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7

GATE2020-CE-1-21
A road in a hilly terrain is to be laid at a gradient of $4.5\%$. A horizontal curve of radius $100\:m$ is laid at a location on this road. Gradient needs to be eased due to combination of curved horizontal and vertical profiles of the road. As per IRC, the compensated gradient (in $\%$, round off to one decimal place), is _______.

go_editor asked in Geomatics Engineering Feb 28, 2020

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8

GATE2020-CE-1-38
An open traverse PQRST is surveyed using theodolite and the consecutive coordinates obtained are given in the table If the independent coordinates (Northing, Easting) of station $P$ are $(400\:m,200\:m)$, the independent coordinates (in $m$) of station $T$, are $194.7,370.1$ $205.3,429.9$ $394.7,170.1$ $405.3,229.9$

go_editor asked in Geomatics Engineering Feb 28, 2020

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9

GATE2020-CE-1-55
The lengths and bearings of a traverse $PQRS$ are: $\begin{array}{|c|c|c|}\hline \text{Segment}&\text{Length}\:(m) &\text{Bearing}\\\hline PQ&40&80^\circ{} \\\hline QR&50&10^\circ{} \\\hline RS&30&210^\circ{}\\\hline\end{array}$ The length of line segment SP (in $m$, round off to two decimal places), is __________

go_editor asked in Geomatics Engineering Feb 28, 2020

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10

GATE2020 CE-2-38
A theodolite was set up at a station $P$. The angle of depression to a vane $2\ m$ above the food of a staff held at another station $Q$ was $45^\circ$. The horizontal distance between stations $P$ and $Q$ is $20\: m$. The staff reading at a benchmark $S$ ... to curvature and refraction, the $RL$ of the station $Q\: \text{(in m)},$ is $413.050$ $413.955$ $431.050$ $435.955$

go_editor asked in Geomatics Engineering Feb 13, 2020

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11

GATE2020 CE-2-55
A theodolite is set up at station $A$. The $RL$ of instrument axis is $212.250\: m$. The angle of elevation to the top of a $4\: m$ long staff, held vertical at station $B$, is $7^{\circ}$.The horizontal distance between stations $A$ and $B$ ... the errors due to curvature of earth and refraction, the $RL$ (in $m,$ round off to three decimal places) of station $B$ is ________.

go_editor asked in Geomatics Engineering Feb 13, 2020

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12

GATE2017 CE-2-13
The method of orientation used, when the plane table occupies a position not yet located on the map, is called as traversing radiation levelling resection

gatecse asked in Geomatics Engineering Aug 7, 2019

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13

GATE2017 CE-2-22
The VPI (vertical point of section) is $100$ m away (when measured along the horizontal) from the VPC (vertical point of curvature). If the vertical is parabolic, the length of the curve (in meters and measured along the horizontal) is _______

gatecse asked in Geomatics Engineering Aug 7, 2019

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14

GATE2017 CE-2-25
While aligning a hill road with a ruling gradient $6\%$, a horizontal curve of radius $50 \: m$ is encountered. The grade compensation (in percentage, up to two decimal places) to be provided for this case would be _________

gatecse asked in Geomatics Engineering Aug 7, 2019

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15

GATE2017 CE-2-38
Two towers, A and B, standing vertically on a horizontal ground, appear in a vertical aerial photograph as shown in the figure. The length of the image of the tower A on the photograph is $1.5$ cm and the tower B is $2.0$ cm. The distance of the top tower A ( ... point $p$ of the photograph. If the height of the tower B is $80$ m, the height (in meters) of the tower A is ________

gatecse asked in Geomatics Engineering Aug 7, 2019

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16

GATE2017 CE-2-55
An observer standing on the deck of a ship just sees the top of a lighthouse. The top of the lighthouse is $40$ m above the sea level and the height of the observer’s eye is $5$ m above the sea level. The distance $9$ in km, up to one decimal place) of teh observer from the lighthouse is __________

gatecse asked in Geomatics Engineering Aug 7, 2019

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17

GATE2019 CE-1: 10
The interior angles of four triangles are given below: ... avoided in Triangulation surveys? $\text{Both P and R}$ $\text{Both Q and R}$ $\text{Both P and S}$ $\text{Both Q and S}$

Arjun asked in Geomatics Engineering Feb 14, 2019

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18

GATE2019 CE-1: 35
A survey line was measured to be $285.5 \: m$ with a tape having a nominal length of $30 \: m$. On checking, the true length of the tape was found to be $0.05 \: m$ too short. If the line lay on a slope of $1$ in $10$, the reduced length (horizontal length) of the line for plotting of survey work would be $283.6 \: m$ $284.5 \: m$ $285.0 \: m$ $285.6 \: m$

Arjun asked in Geomatics Engineering Feb 14, 2019

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19

GATE2019 CE-1: 47
A parabolic vertical curve is being designed to join a road of grade $+5 \%$ with a road of grade $-3 \%$. The length of the vertical curve is $400 \: m$ measured along the horizontal. The vertical point of curvature (VPC) is located on the ... $m$, round off to the nearest integer) is _________

Arjun asked in Geomatics Engineering Feb 14, 2019

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20

GATE2019 CE-2: 22
The data from a closed traverse survey PQRS (run in the clockwise direction) are given in the table $\begin{array}{|c|c|} \hline \text{Line} & \text{Included angle (in degrees)} \\ \hline PQ & 88 \\ \hline QR & 92 \\ \hline RS & 94 \\ \hline SP & 89 \\ \hline \end{array}$ The closing error for the traverse PQRS (in degrees) is ______

Arjun asked in Geomatics Engineering Feb 12, 2019

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21

GATE2019 CE-2: 33
A camera with a focal length of $20$ cm fitted in an aircraft is used for taking vertical aerial photographs of a terrain. The average elevation of the terrain is $1200 \: m$ above mean sea level (MSL). What is the height above MSL at which an aircraft must fly in order to get the aerial photographs at a scale of $1:8000$? $2600 \: m$ $2800 \: m$ $3000 \: m$ $3200 \: m$

Arjun asked in Geomatics Engineering Feb 12, 2019

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22

GATE2016-2-23
Optimal flight planning for a photogrammetric survey should be carried out considering only side-lap only end-lap either side-lap or end-lap both side-lap as well as end-lap

Milicevic3306 asked in Geomatics Engineering Mar 28, 2018

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23

GATE2016-2-24
The reduced bearing of a $10 \: m$ long line is $N 30^{\circ}E$. The departure of the line is $10.00 \: m$ $8.66 \: m$ $7.52 \: m$ $5.00 \: m$

Milicevic3306 asked in Geomatics Engineering Mar 28, 2018

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24

GATE2016-2-55
A tall tower was photographed from an elevation of $700$ m above the datum. The radial distances of the top and bottom of the tower from the principal points are $112.50$ mm and $82.40$ mm, respectively. If the bottom of the tower is at an elevation $250$ m above the datum, then the height (expressed in m) of the tower is _________

Milicevic3306 asked in Geomatics Engineering Mar 28, 2018

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25

GATE2016-1-23
The minimum number of satellites needed for a GPS to determine its position precisely is $2$ $3$ $4$ $24$

Milicevic3306 asked in Geomatics Engineering Mar 28, 2018

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26

GATE2016-1-24
The system that uses the Sun as a source of electromagnetic energy and records the naturally radiated and reflected energy from the object is called Geographical Information System Global Positioning System Passive Remote Sensing Active Remote Sensing

Milicevic3306 asked in Geomatics Engineering Mar 28, 2018

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27

GATE2016-1-25
The staff reading taken on a workshop floor using a level is $0.645$ m. The inverted staff reading taken to the bottom of a beam is $2.960$ m. The reduced level of the floor is $40.500$ m. The reduced level (expressed in m) of the bottom of the beam is $44.105$ $43.460$ $42.815$ $41.145$

Milicevic3306 asked in Geomatics Engineering Mar 28, 2018

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28

GATE2016-1-55
The vertical angles subtended by the top of a tower T at two instrument stations set up at P and Q, are shown in the figure. The two stations are in line with the tower and spaced at a distance of $60$ m. Readings taken from these two stations on a leveling staff ... ($BM=450.000$ m) are also shown in the figure. The reduced level of the top of the tower T (expressed in m) is _____

Milicevic3306 asked in Geomatics Engineering Mar 28, 2018

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29

GATE2017 CE-1: 19
The number of spectral bands in the Enhanced Thematic Mapper sensor on the remote sensing satellite Landsat-$7$ is: $64$ $10$ $8$ $15$

Milicevic3306 asked in Geomatics Engineering Mar 26, 2018

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30

GATE2017 CE-1: 35
The observed bearings of a traverse are given below: ... $R$ Only $S$ $R$ and $S$ $P$ and $Q$

Milicevic3306 asked in Geomatics Engineering Mar 26, 2018

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31

GATE2015-2-24
In a leveling work, sum of the Back Sight (B.S.) and Force Sight (F.S.) have been found to be $3.085$ m and $5.645$ m respectively. If the Reduced Level (R.L.) of the starting station is $100.000$ m, the R.L. (in m) of the last station is ________.

Milicevic3306 asked in Geomatics Engineering Mar 26, 2018

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32

GATE2015-2-25
The combined correction due to curvature and refraction (in m) for a distance of $1$ km on the surface of Earth is: $0.0673$ $0.673$ $7.63$ $0.763$

Milicevic3306 asked in Geomatics Engineering Mar 26, 2018

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33

GATE2015-2-54
The bearings of two inaccessible stations, $S_1$ (Easting $500$ m, Northing $500$ m) and $S_2$ (Easting $600$ m, Northing $450$ m) from a station $S_3$ were observed as $225^{\circ}$ and $153^{\circ}\: 26’$ respectively. The independent Easting (in m) of station $S_3$ is: $450.000$ $570.710$ $550.000$ $650.000$

Milicevic3306 asked in Geomatics Engineering Mar 26, 2018

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34

GATE2015-2-55
Two Pegs A and B were fixed on opposite banks of a $50$ m wide river. The level was set up at A and the staff readings on Pegs A and B were observed as $1.350$ m and $1.550$ m, respectively. Thereafter the instrument was shifted and set up at B. The staff reading on Pegs B and ... m and $0.550$ m, respectively. If the R.L. of Peg A is $100.200$ m, the R.L. (in m) of Peg B is _______.

Milicevic3306 asked in Geomatics Engineering Mar 26, 2018

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35

GATE2015-1-24
Which of the following statements is FALSE? Plumb line is along the direction of gravity Mean Sea Level (MSL) is used as a reference surface for establishing the horizontal control Mean Sea Level (MSL) is a simplification of the Geoid Geoid is an equi-potential surface of gravity

Milicevic3306 asked in Geomatics Engineering Mar 26, 2018

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36

GATE2015-1-25
In a closed loop traverse of $1$ km total length, the closing errors in departure and latitude are $0.3$ m and $0.4$ m, respectively. The relative precision of this traverse will be: $1:5000$ $1:4000$ $1:3000$ $1:2000$

Milicevic3306 asked in Geomatics Engineering Mar 26, 2018

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37

GATE2015-1-54
In a survey work, three independent angles $X, Y$ and $Z$ were observed with weights $W_X, W_Y, W_Z$,respectively. The weight of the sum of angles $X, Y$ and $Z$ is given by: $1/ \big( \dfrac{1}{W_X} + \dfrac{1}{W_Y} + \dfrac{1}{W_Z} \big) \\$ $\big( \dfrac{1}{W_X} + \dfrac{1}{W_Y} + \dfrac{1}{W_Z} \big) \\$ $W_X +W_Y+W_Z \\$ $W_X^2 +W_Y^2+W_Z^2$

Milicevic3306 asked in Geomatics Engineering Mar 26, 2018

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38

GATE2015-1-55
In a region with magnetic declination of $2^{\circ}E$, the magnetic Fore bearing (FB) of a line $AB$ was measured as $N79^{\circ}50'E$. There was local attraction at $A$. To determine the correct magnetic bearing of the line, a point $O$ was selected at which there was no local ... true $FB$ of line $AB?$ $N81^{\circ}50'E$ $N82^{\circ}10'E$ $N84^{\circ}10'E$ $N77^{\circ}50'E$

Milicevic3306 asked in Geomatics Engineering Mar 26, 2018

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39

GATE2014-2-54
A tacheometer was placed at point $P$ to estimate the horizontal distances $PQ$ and $PR$. The corresponding stadia intercepts with the telescope kept horizontal, are $0.320$ m and $0.210$ m, respectively. The $\angle QPR $ ... $=100$ and stadia addition constant $=0.10$ m, the horizontal distance (in m) between the points $Q$ and $R$ is __________

Milicevic3306 asked in Geomatics Engineering Mar 26, 2018

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40

GATE2014-2-25
The survey carried out to delineate natural features, such as hills, rivers, forests and man-made features, such as towns, village, buildings, roads, transmission line, and canals is classified as engineering survey geological survey land survey topographic survey

Milicevic3306 asked in Geomatics Engineering Mar 26, 2018

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