Surveying Interview Questions 2

Questions by Rejinpaul.com

1. Pick up the correct statement from the following :

a)The directions of plumb lines suspended at different points in a survey are not strictly parallel
b)In surveys of small extent, the effect of curvature may be ignored and the level surface of the earth is assumed as horizontal
c)In surveys of large extent, the effect of curvature of the earth must be considered
d)All the above.

The Correct Answer is: d)All the above.
Explanation: -

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2. In geodetic surveys higher accuracy is achieved, if

a)curvature of the earth surface is ignored
b)curvature of the earth surface is taken into account
c)angles between the curved lines are treated as plane angles
d)none of these.

The Correct Answer is: b)curvature of the earth surface is taken into account
Explanation: -

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3. Determining the difference in elevation between two points on the surface of the earth, is known as

a)levelling
b)simple levelling
c)differential levelling
d)longitudinal levelling.

The Correct Answer is: c)differential levelling
Explanation: -

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4. Contours of different elevations may cross each other only in the case of

a)an over hanging cliff
b)a vertical cliff
c)a saddle
d)an inclined plane.

The Correct Answer is: an over hanging cliff
Explanation: -

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5. While working on a plane table, the correct rule is :

a)Draw continuous lines from all instrument stations
b)Draw short rays sufficient to contain the points sought
c)Intersection should be obtained by actually drawing second rays
d)Take maximum number of sights as possible from each station to distant objects.

The Correct Answer is: Draw short rays sufficient to contain the points sought
Explanation: -

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6.Pick up the correct statement from the following

a)the contour lines having the same elevation cannot unite and continue as one line
b)a contour can not end abruptly, but must ultimately close itself not necessarily within the limits of map.
c)the direction of steepest slope at a point on a contour is at right angles to the contour
d)all the above.

The Correct Answer is: d)all the above.
Explanation: -

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7. In case of a double line river, contours are

a)stopped at the banks of the river
b)stopped at the edge of the river
c)drawn across the water
d)drawn by parabolic curves having their vertex at the centre of the water.

The Correct Answer is: b)stopped at the edge of the rive
Explanation: -

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8. In case of a direct vernier scale

a)graduations increase in opposite direction in which graduations of the main scale increase
b)smallest division is longer than smallest division of the main scale
c)graduations increase in the same direction in which graduations of the main scale increase
d)none of these.

The Correct Answer is: c)graduations increase in the same direction in which graduations of the main scale increase
Explanation: -

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9. The surface of zero elevation around the earth, which is slightly irregular and curved, is known as

a)mean sea level
b)geoid surface
c)level surface
d)horizontal surface.

The Correct Answer is: b)geoid surface
Explanation: -

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10. The representation of general topography of a very flat terrain is possible only

a)by drawing contours at large interval
b)by drawing contours at small interval
c)by giving spot levels at large interval
d)by giving spot levels to salient features at close interval.

The Correct Answer is: d)by giving spot levels to salient features at close interval.
Explanation: -

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11. Tilt of the staff in stadia tacheometry increases the intercept if it is

a)away from the telescope pointing down hill
b)towards the telescope pointing up-hill
c)away from the telescope pointing up-hill
d)none of these.

The Correct Answer is: c)away from the telescope pointing up-hil
Explanation: -

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12. To orient a plane table at a point with two inaccessible points, the method generally adopted, is

a)intersection
b)resection
c)radiation
d)two point problem.

The Correct Answer is: d)two point problem.
Explanation: -

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13. Number of links per metre length of a chain are

a)2
b)5
c)20
d)30

The Correct Answer is: b)5
Explanation: -

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14.Locating the position of a plane table station with reference to three known points, is known as

a)intersection method
b)radiation method
c)resection method
d)three point problem.

The Correct Answer is: d)three point problem.
Explanation: -

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15. If D is the degree of the curve of radius R, the exact length of its specified chord,

a)radius of the curve x sine of half the degree
b)diameter of the curve x sine of half the degree
c)diameter of the curve x cosine of half the degree
d)diameter of the curve x tangent of half the degree.

The Correct Answer is: b)diameter of the curve x sine of half the degree
Explanation: -

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16. If the chain line which runs along N-S direction is horizontal and the ground in E-W direction is sloping

a)it is possible to set offsets correctly on east side
b)it is possible to set offsets correctly on east side
c)it is not possible to set offsets correctly on west side
d)it is possible to set offsets correctly on both sides.

The Correct Answer is: d)it is possible to set offsets correctly on both sides
Explanation: -

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17. It is more difficult to obtain good results while measuringhorizontal distance by stepping

a)up-hill
b)down-hill
c)in low undulations
d)in plane areas.

The Correct Answer is: a)up-hill
Explanation: -

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18. The additional lines which are measured to show the correctness of the chain surveying are called:

a)check clines
b)proof lines
c)tie lines
d)all of these.

The Correct Answer is: d)all of these.
Explanation: -

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19. The line normal to the plumb line is known as

a)horizontal line
b)level line
c)datum line
d)vertical line.

The Correct Answer is: b)level line
Explanation: -

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20. The angle of intersection of a curve is the angle between

a)back tangent and forward tangent
b)prolongation of back tangent and forward tangent
c)forward tangent and long chord
d)back tangent and long chord.

The Correct Answer is: a)back tangent and forward tangent
Explanation: -

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