## Surveying MCQ Practice Questions (Civil Engineering) Set 4

Options are :

• E
• D
• B
• A
• C

Options are :

• 500
• 1000
• 200
• 100

##### The distance between terminal points computed from a subsidiary traverse run between them, is generally known, as:

Options are :

• Traverse base
• A base
• Traverse leg
• All the above

##### While measuring the distance between two points along upgrade with the help of a 20 m chain, the forward end of the chain is shifted forward through a distance:

Options are :

• 20 (cosec ? - 1)
• 20 (sin ? - 1)
• 20 (sec ? - 1)
• 20 (cos ? - 1)

Answer :20 (sec ? - 1)

##### The line of collimation method of reduction of levels, does not provide a check on:

Options are :

• Reduced levels
• Fore sights
• Back sights
• Intermediate sights

##### To avoid large centering error with very short legs, observations are generally made:

Options are :

• To chain pins
• All the above
• To a target fixed on theodolite tripod on which theodolite may be fitted easily
• By using optical system for centering the theodolite

Answer :To a target fixed on theodolite tripod on which theodolite may be fitted easily

Options are :

• B
• D
• A
• C

##### Rankine's deflection angle in minutes is obtained by multiplying the length of the chord by:

Options are :

• None of these
• Square of the degree of the curve
• Inverse of the degree of the curve
• Degree of the curve

Answer :Degree of the curve

##### The ratio of the distances at which a stated length can be distinguished by the telescope and the human eye, respectively, is called:

Options are :

• Resolving power of telescope
• Magnification of telescope
• None of these
• Brightness of telescope

Answer :Resolving power of telescope

Options are :

• 60°
• 45°
• 30°
• 20°

##### Two contour lines, having the same elevation:

Options are :

• Can cross each other
• Can unite together
• Cannot unite together
• Cannot cross each other

Answer :Can unite together

Options are :

• D
• A
• B
• C

##### In geodetic surveys higher accuracy is achieved, if:

Options are :

• Angles between the curved lines are treated as plane angles
• Curvature of the earth surface is taken into account
• Curvature of the earth surface is ignored
• None of these

Answer :Curvature of the earth surface is taken into account

##### A transit is oriented by setting its vernier A to read the back azimuth of the preceding line. A back sight on the preceding transit station taken and transit is rotated about its vertical axisThe vernier A reads:

Options are :

• Back bearing of the forward line
• Azimuth of the forward line
• Equal to 360°-azimuth of the forward line
• Bearing of the. forward line

Answer :Azimuth of the forward line

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

Options are :

• Level surface
• Horizontal surface
• Geoid surface
• Mean sea level

Options are :

• 5.37°
• 3.57°
• 5.73°
• 3.75°

##### Pick up the correct statement from the following:

Options are :

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

Answer :All the above

##### Contours of different elevations may cross each other only in the case of:

Options are :

• An over hanging cliff
• An inclined plane
• A vertical cliff

Answer :An over hanging cliff

Options are :

• A
• C
• D
• B

##### In case of a direct vernier scale:

Options are :

• Smallest division is longer than smallest division of the main scale
• None of these
• Graduations increase in opposite direction in which graduations of the main scale increase
• Graduations increase in the same direction in which graduations of the main scale increase

Answer :Graduations increase in the same direction in which graduations of the main scale increase

##### During levelling if back sight is more than foresight:

Options are :

• The forward staff is at lower point
• The back staff is at lower point
• None of these
• The difference in level, cannot be ascertained

Answer :The back staff is at lower point

##### Permanent adjustments of a level are:

Options are :

• 4 in number
• 3 in number
• 6 in number
• 2 in number

Answer :2 in number

Options are :

• 27° 52'
• 96° 58'
• 148° 08'
• 186° 58'

##### Pick up the correct statement from the following:

Options are :

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

Answer :All the above

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

Options are :

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

Answer :Draw short rays sufficient to contain the points sought

##### The lens equation Larger image is applicable:

Options are :

• The computed quantities are accurate enough for geometrical optics of simple distances
• When the thickness of the lens is small
• All the above
• Only to conjugate distances along the principal axis

Answer :All the above

##### In case of a double line river, contours are:

Options are :

• Stopped at the banks of the river
• Drawn across the water
• Stopped at the edge of the river
• Drawn by parabolic curves having their vertex at the centre of the water

Answer :Stopped at the edge of the river

Options are :

• 100 ?^(2)
• 100 ?^(3)
• 100 ?^(-1)
• 100 ?

##### The representation of general topography of a very flat terrain is possible only:

Options are :

• By drawing contours at small interval
• By giving spot levels to salient features at close interval
• By drawing contours at large interval
• By giving spot levels at large interval

Answer :By giving spot levels to salient features at close interval

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

Options are :

• Longitudinal levelling
• Differential levelling
• Simple levelling
• Levelling