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WorksheetsSurveying and Leveling
Total questions: 40
Worksheet time: 20mins
Contour lines of different elevations can unite to form one line, only in the case of
A vertical cliff
A saddle
A watershed line
A hilltop
The sag of 50 m tape weighing 4 kg under 5 kg tension is roughly
0.043 m
0.053 m
0.063 m
0.083 m
If the length of a transition curve is to be introduced between a straight and a circular curve of radius 500 m is 90 m, the maximum perpendicular offset for the transition curve, is
0.70 m
1.70 m
2.70 m
3.70 m
The longitudinal section of the surface of the bubble tube is
Straight
Circular
Parabolic
Elliptic
A traverse deflection angle is
Less than 90°
More than 90° but less than 180°
The difference between the included angle and 180°
The difference between 360° and the included angle
The least count of a Vernier scale is
Sum of the smallest divisions of main and Vernier scales
Value of one division of the primary scale divided by the total number of divisions of Vernier scale
Value of one division of Vernier scale divided by the total number of divisions of the primary scale
None of these
The tangent to the liquid surface in a level tube is parallel to the axis of the level tube at
Every point of the bubble
Either end of the bubble
The mid-point of the bubble
No where
The slope correction may be ignored if
The slope of the ground is less than 3°
To slope of the ground is say 1 in 19
Both (a) and (b)
Neither (a) nor (b)
The whole circle bearing of a line is 290°. Its reduced bearing is
N 20° E
N 20° W
S 70° E
N 70° W
The horizontal angle between true meridian and magnetic meridian is known
Bearing
Magnetic declination
Dip
Convergence
The ‘fix’ of a plane table station with three known points, is bad if the plane table station lies
On the circumference of the circumscribing circle
Outside the great triangle
In the great triangle
None of these
One of the tacheometric constants is additive, the other constant, is
Subtractive constant
Multiplying constant
Dividing constant
Indicative constant
If the radius of a simple curve is R, the length of the chord for calculating offsets by the method of chords produced, should not exceed.
R/10
R/15
R/20
R/25
For setting out a simple curve, using two theodolites.
Offsets from tangents are required
Offsets from chord produced are required
Offsets from long chords are required
None of these
The centering error of a theodolite produces an error
In all angles equally
Which does not vary with the direction or pointing
Which varies with the direction of pointing and inversely with the length of sight
None of these
If the area calculated from the plan is plotted with measurements by an erroneous chain, the accurate area of the plan is
Measured area × (Length of chain used/Nominal chain length)
Measured area × (Nominal chain length/ Length of chain used)
Measured area × (Nominal chain length/ Length of chain used)²
Measured area × (Length of chain used/Nominal chain length)²
The suitable contour interval for a map with scale 1 : 10000 is
2 m
5 m
10 m
20 m
In an adjusted level, when the bubble is central, the axis of the bubble tube becomes parallel to
Line of sight
Line of collimation
Axis of the telescope
None of these
Ranging is an operation of
Reconnaissance
Judging the distance
Determination of slope
Establishing intermediate points between terminals
Locating the position of a plane table station with reference to three known points, is known as
Radiation method
Intersection method
Three point problem
Resection method
If the intercept on a vertical staff is observed as 0.75 m from a tachometer, the horizontal distance between tachometer and staff
7.5 m
25 m
50 m
75 m
The ratio of the distances at which a stated length can be distinguished by the telescope and the human eye, respectively, is called
Brightness of telescope
Magnification of telescope
Resolving power of telescope
None of these
The radius of a simple circular curve is 300 m and length of its specified chord is 30 m. The degree of the curve is
5.73°
5.37°
3.57°
3.75°
If ‘R’ is the radius of the main curve, ‘θ’ the angle of deflection, ‘S’ the shift and ‘L’ the length of the transition curve, then, total tangent length of the curve, is
(R - S) tan θ/2 - L/2
(R + S) tan θ/2 - L/2
(R + S) tan θ/2 + L/2
(R - S) tan θ/2 + L/2
A series of closely spaced contour lines represents a
Steep slope
Gentle slope
Uniform slope
Plane surface
In an internal focusing telescope
The objective is at a fixed distance from the diaphragm
The focusing is done by the sliding of a divergent lens
The focusing divergent lens is situated at about the middle of the tube
All the above
During secular variation of magnetic meridian at different places
Range of oscillations is constant
Period of oscillation is constant
Range and period of oscillation both vary
Period of oscillation only varies
Correction per chain length of 100 links along a slope of α radians, is
100 α2
100 α
100 α3
100 α-1
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
Correctly focussed
Not correctly focussed
Said to have parallax
Free from parallax
What is Surveying?
Surveying is used to find the elevations of given points with respect to given or assumed datum
Surveying shows the relative positions of the objects on the surface of the earth
Surveying is to find the elevation of points having the same contour interval
All of the mentioned
Which of the following is the first principle of surveying?
Whole to whole
Part to part
Part to whole
Whole to part
Which of the following type of surveying is used for exploring mineral wealth?
Military surveying
Mine surveying
Topographic surveying
Engineering surveying
In which of the following type of surveying only linear measurements are made?
Dumpy level
Theodolite surveying
Chain surveying
Contouring
Which of the following classification in surveying is based on the instrument used?
Traverse surveying
Cadastral surveying
Topographic surveying
Hydrographic surveying
Which of the following is not required for chain surveying?
Dumpy level
Pegs
Arrows
20 m chain
Which of the following is the last step in chain surveying?
Fixing
Reconnaissance
Running survey lines
Marking
Which of the following cannot be done with the help of theodolite in surveying?
Measuring horizontal distances
Prolonging survey lines
Laying off horizontal angles
Locating points on lines
Which of the following is an indirect method of surveying?
Countouring
Chain surveying
Tacheometry
All of the mentioned
Which of the following branch of surveying is used to find the elevations of given points with respect to given or assumed datum?
Plane table surveying
Traversing
Contouring
Levelling
Which of the following surveying methods is meant to be having high precision?
Terrestrial photogrammetry
Traverse surveying
Aerial photogrammetry
Theodolite surveying
