## Surveying MCQ Practice Questions (Civil Engineering) Set 9

##### In chain surveying field work is limited to:

Options are :

• Both linear and angular measurements
• All the above
• Linear measurements only
• Angular measurements only

Options are :

• C
• A
• B
• D

##### Geodetic surveying is undertaken:

Options are :

• For production of accurate maps of wide areas
• For developing the science of geodesy
• All the above
• Making use of most accurate instruments and methods of observation
• For determination of accurate positions on the earth's surface of system of control points

Options are :

• 3.75 cm
• 37.5 cm
• 2.75 cm
• 0.375 cm

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

Options are :

• The power of a lens is the reciprocal of its focal length
• All the above
• The power of two or more thin lenses in contact is the power of the combination of the lenses
• The unit of power of the lens is diopter

##### While viewing through a level telescope and moving the eye slightly, a relative movement occurs between the image of the levelling staff and the cross hairs. The instrument is:

Options are :

• Said to have parallax
• Not correctly focussed
• Correctly focussed
• Free from parallax

Options are :

• 1718.9 R/S
• 573 S/R
• 1718.9 S/R
• 171.9 S/R
• 573 R/S

##### A uniform slope was measured by the method of stepping. If the difference in level between two points is 1.8 m and the slope distance between them is 15 m, the error is approximately equal to:

Options are :

• Cumulative, - 0.11 m
• None of these
• Compensating, ± 0.11 m
• Cumulative, + 0.11 m

Options are :

• C
• B
• A
• D

Options are :

• B
• C
• D
• A

##### If ? is the slope of the ground and l is the measured distance, the correction is:

Options are :

• 2l cos^(2) ?/2
• 2l tan^(2) ?/2
• 2l sin^(2) ?/2
• 2l cot^(2) ?/2

##### Offsets are measured with an accuracy of 1 in 40. If the point on the paper from both sources of error (due to angular and measurement errors) is not to exceed 0.05 cm on a scale of 1 cm = 20 m, the maximum length of offset should be limited to:

Options are :

• None of these
• 14.14
• 28.28 m
• 200 m

##### A bearing of a line is also known as:

Options are :

• Magnetic bearing
• True bearing
• Azimuth
• Reduced bearing

##### Setting out a curve by two theodolite method, involves:

Options are :

• Both linear and angular measurements
• None of these
• Linear measurements only
• Angular measurements only

##### Measuring with a 30 m chain, 0.01 m too short, introduces:

Options are :

• Positive cumulative error
• Positive compensating error
• Negative compensating error
• Negative cumulative error

Options are :

• 3.828
• 0.828
• 2.828
• 1.828

##### An imaginary line joining the points of equal elevation on the surface of the earth, represents:

Options are :

• Level line
• None of these
• Contour line
• Contour surface

##### The operation of making the algebraic sum of latitudes and departures of a closed traverse, each equal to zero, is known:

Options are :

• Balancing the departures
• Balancing the traverse
• Balancing the latitudes
• Balancing the sights

##### The systematic errors which persist and have regular effects in the performance of a survey operation, are due to:

Options are :

• None of these
• Carelessness
• Inattention
• Faulty instrument

Options are :

• 1/2 m
• 3 m
• 1 m
• 2 m

Options are :

• D
• B
• A
• C

Options are :

• 1.770 m
• 0.785 m
• 3.030 m
• 2.900 m
• 0.770 m

##### If the angular measurements of a traverse are more precise than its linear measurements, balancing of the traverse, is done by:

Options are :

• Empirical rule
• Bowditch's rule
• All of the above
• Transit rule

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

Options are :

• In Galileo's telescope, the rays from the object get refracted at the objective and are intercepted by the eyepiece before a real image is formed
• All the above
• In astronomical telescope, the rays from the object after refraction at the objective are brought to a focus before entering the eyepiece to produce a real inverted image in front of the eye piece
• A line passing through the optical centre of the objective traversing through the eyepiece, is called line of sight
• The line of sight which passes through the intersection of cross-lines marked on a diaphragm fixed in front of the eyepiece in a plane at right-angles to the axis, is called the line of collimation

Options are :

• Excavation on the centre line
• None of these
• Earth work on the centre line
• Embankment on the centre line

Answer :Excavation on the centre line

##### Pick up the method of surveying in which field observations and plotting proceed simultaneously from the following:

Options are :

• Compass surveying
• Plan table surveying
• Tacheometric surveying
• Chain surveying

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

Options are :

• The length of the brass handle is included in the length of chain
• The length of the Gunter's chain is 66 ft
• The fifth tag from either end of the chain is numbered 5
• All the above
• The handles are on swivel joints to prevent twisting of the chain

##### The difference of level between a point below the plane of sight and one above, is the sum of two staff readings and an error would be produced equal to:

Options are :

• Twice the distance between the zero of graduation and the foot of the staff
• None of the above
• The distance between the zero of gradient and the foot of the staff
• Thrice the distance between the zero of graduation and the foot of the staff

Answer :Twice the distance between the zero of graduation and the foot of the staff

##### In chain surveying tie lines are primarily provided:

Options are :

• to increase the number of chain lines
• to avoid long offsets from chain lines
• to check the accuracy of the survey
• to take offsets for detail survey

Answer :to avoid long offsets from chain lines

Options are :

• 25 cm
• 20 m
• 10 m
• 45 m