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Home » Engineering » Civil Engineering » Aptitude Test - 11
1. The zero of the graduated circle of a prismatic compass is located at
A. north end
B. east end
C. south end
D. north end
2.. The true meridian of a place is the line in which earth's surface is intersected by a plane through
A. east and west points
B. zenith and nadir points
C. north and south geographical poles
D. east and west points
3. True meridian of different places
A. converge from the south pole to the north pole
B. converge from the north pole to the south pole
C. converge from the equator to the poles
D. converge from the south pole to the north pole
4.True meridians are generally preferred to magnetic meridians because
A. these converge to a point
B. these change due to change in time
C. these remain constant.
D. these converge to a point
5. During secular variation of magnetic meridian at different places
A. range of oscillations is constant
B. period of oscillation is constant
C. range and period of oscillation both vary
D. range of oscillations is constant
6.Diurnal variation of magnetic declination is
A. greater at equator than nearer the poles
B. less at equator than nearer the poles
C. less in summer than in winter
D. greater at equator than nearer the poles
7. Grid lines are parallel to
A. magnetic meridian of the central point of the grid
B. line representing the central true meridian of the grid
C. geographical equator
D. magnetic meridian of the central point of the grid
8. Whole circle bearing of a line is preferred to a quadrantal bearing merely because
A. bearing is not completely specified by an angle bearing is completely specified by an angle
B. Sign of the correction of magnetic declination is different in different quadrants
C. its trigonometrical values may be extracted from ordinary tables easily.
D. bearing is not completely specified by an angle bearing is completely specified by an angle
9. In quadrantal bearing system, back bearing of a line may be obtained from its forward bearing, by
A. adding 180?, if the given bearing is less than 180'
B. subtracting 180?, if the given bearing, is more than 180?
C. changing the cardinal points, i.e. substituting N for S and E for W and vice-versa
D. adding 180?, if the given bearing is less than 180'
10.Reduced bearing of a line is an angle between
A. north line and given line measured clockwise
B. north line and given line measured anti-clockwise
C. east or west and the given line
D. north line and given line measured clockwise
11.Plane Tabling is _________________ method of surveying.
A. Graphical
B. analytical
C. mathematical
D. Graphical
12.The principle of plane tabling is _____________________
A. Trigonometry
B. Similarity
C. Contouring
D. Trigonometry
13.What are the types of plane tables ?
A. Simple plane table
B. Johnson plane table
C. Coast survey table
D. Simple plane table
14.which is the method of plane tabling ?
A. Ranging
B. Traversing
C. Both (a) and (b)
D. Ranging
15.______________ must be done when the plane table is set up at more than one station.
A. Marking the north line
B. Orientation
C. Both (a) and (b)
D. Marking the north line
16._________________ method of plane tabling is suitable for locating inaccessible points.
A. Radiation
B. Resection
C. Intersection
D. Radiation
17.Which of following is not an instrument used in plane tabling ?
A. Alidade
B. U - fork
C. Trough Compass
D. Alidade
18.What are advantages of Plane Table surveying ?
A. Rapid method
B. Can be used in all weather
C. Re-ploting can be done easily
D. Rapid method
19._____________ is used for sighting the objects and drawing the rays in plane table surveying.
A. Plain Alidade
B. Telescopic Alidade
C. Both (a) and (b)
D. Plain Alidade
20.Plane table survey is used for ____________
A. Small to medium scale works
B. plotting topographical maps
C. filling in interior details of traverse
D. Small to medium scale works
21.U fork is primarily used for
A. Centering the table
B. Transferring the ground point on to table
C. Both (a) and (b)
D. Centering the table
22.Which type of plane table have a ball and socket joint to facilitate the titling which is useful in leveling the table ?
A. Simple plane table
B. Johnson plane table
C. Coast survey table
D. Simple plane table
23.Which type of plane table have a proper leveling head of 3 foot screws for accurate leveling of table ?
A. Simple plane table
B. Johnson plane table
C. Coast survey table
D. Simple plane table
24.If accurate orientation of plane table is to be done in area prone to local attraction, it is done by _____________
A. By backsighting
B. By magnetic needle
C. Both (a) and (b)
D. By backsighting
25.The principle of Resection method is _____________ to that of the intersection method.
A. Same
B. Different (no relation with each other)
C. Opposite
D. Same
26.Plane table survey carries a lot of accessories with it which are likely to be lost.
A. True
B. False
C. Cannot say
D. True
27.In plane table ________________ are adjustable/avoidable.
A. Climatic errors
B. Instrumental errors
C. Personal errors
D. Climatic errors
28.In plane table survey, an incorrect scale used by mistake is an example of _____________
A. Errors in plotting
B. Instrumental error
C. Both (a) and (b)
D. Errors in plotting
29.Which of the following is/are special methods of resection ?
A. Back ray method
B. Two point problem
C. Three point problem
D. Back ray method
30.Normally while working with plane table, is there any possibility to overlook any important object ?
A. Yes
B. No
C. Cannot say
D. Yes
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