Multiple Choice Questions and Answers :-
1. A metallic tape is made of
a) steel
b) invar
c) linen
d) cloth and wires
Ans: d
2. For a well-conditioned triangle, no angle should be
less than
a) 20°
b) 30°
c) 45°
d) 60°
Ans: b
3. The angle of intersection of the two plane mirrors of
an optical square is
a) 30°
b) 45°
c) 60°
d) 90°
Ans: b
4. The allowable length of an offset depends upon the
a) degree of accuracy required
b) method of setting out the perpendiculars and nature of
ground
c) scale of plotting
d) all of the above
Ans: d
5. The permissible error in chaining for measurewith chain on rough or hilly ground is
a) 1 in 100
b) 1 in 250
c) 1 in 500
d) 1 in 1000
Ans: b
6. The correction for sag is
a) always additive
b) always subtractive
c) always zero
d) sometimes additive and sometimes subtractive
Ans: b
7. Cross staff is an instrument used for
a) measuring approximate horizontal angles
b) setting out right angles
c) measuring bearings of the lines
d) none of the above
Ans: b
8. Contour interval is
a) the vertical distance between two con-secutive contours
b) the horizontal distance between two consecutive contours
c) the vertical distance between two points on same contour
d) the horizontal distance between two points on same contour
Ans: a
9. Benchmark is established by
a) hypsometry
b) barometric levelling
c) spirit levelling
d) trigonometrical levelling
Ans: c
10. The type of surveying which requires least office work is
a) tacheomefry
b) trigonometrical levelling
c) plane table surveying
d) theodolite surveying
Ans: c
11. Intersection method of detailed plotting is most suitable for
a) forests
b) urban areas
c) hilly areas
d) plains
Ans: c
12. Three point problem can be solved by
a) Tracing paper method
b) Bessels method
c) Lehman’s method
d) all of the above
Ans: d
13. The size of a plane table is
a) 750 mm x 900 mm
b) 600 mm x 750 mm
c) 450 mm x 600 mm
d) 300 mm x 450 mm
Ans: b
14. The process of determining the locations of the instrument
station by drawing re sectors from the locations of the known
stations is called
a) radiation
b) intersection
c) resection
d) traversing
Ans: c
15. The instrument used for accurate centering in plane table
survey is
a) spirit level
b) alidade
c) plumbing fork
d) trough compass
Ans: c
16. After fixing the plane table to the tripod, the main
operations which are needed at each plane table station are
i) levelling
ii) orientation
iii) centering
The correct sequence of these operations is
a) (i), (ii),.(iii)
b) (i), (iii), (ii)
c) (iii), (i), (ii)
d) (ii), (Hi), (i)
Ans: b
17. Bowditch rule is applied to
a) an open traverse for graphical adjustment
b) a closed traverse for adjustment of closing error
c) determine the effect of local attraction
d) none of the above
Ans: b
18. If in a closed traverse, the sum of the north latitudes is more
than the sum of the south latitudes and also the sum of west
departures is more than the sum of the east departures, the
bearing of the closing line is in the
a) NE quadrant
b) SE quadrant
c) NW quadrant
d) SW quadrant
Ans: b
short answer questions
1. Describe the principle of surveying.
The fundamental principles upon which the surveying is being carried out are
Working from whole to part.
After deciding the position of any point, its reference must be kept from at least two permanent objects or stations whose positions have already been well defined.
2. What do you mean by reciprocal ranging?
When the end stations are not intervisible due to high ground or a hill or if the ends are too long. In such cases, intermediate points can be fixed on the survey line by a process known as Reciprocal ranging or Indirect ranging.
3. What do you mean by scale in surveying?
Scale is a fixed ratio that every distance on the plan bears with corresponding distance on the ground. For example: 1cm = 10m
4. Define and distinguish between plane and geodetic surveying.
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