“Plane Table Surveying Accessories”.

1. Which of the following does not belong to the instruments of plane table?
a) Spirit level
b) Plumb bob
c) Compass
d) Theodolite
Answer: d
Explanation: Spirit level is used for levelling the table at the station point. Plumb bob is used to transfer the point in sheet to
the ground. Compass is used to indicate the magnetic north. Theodolite is not used in this case as the entire process is done
manually without any instrumental usage.

2. In plane table surveying, plotting and recording of values are done simultaneously.
a) True
b) False
Answer: a
Explanation: Plane table surveying is a graphical method, in which the field observations and plotting process is done
simultaneously. It involves making a map in the field while the ground can be seen by the topographer and without
intermediate steps of recording in field notes.

3. What are the dimensions of Johnson table?

a) 60*45 cm
b) 45*60 cm
c) 40*60 cm
d) 45*65 cm
Answer: b
Explanation: The Johnson board usually consists of 45*60 cm dimension, which is used while doing important field works
which needs precise values.

4. For obtaining high precision values, which among the following is used?
a) Wooden table
b) Johnson table
c) Coast survey table
d) Traverse table
Answer: c
Explanation: Coast survey table can be able to obtain more precise values than the remaining plane tables. Due to more
accuracy in levelling, the ability of producing precise values increases.

5. Alidade is used for___________

a) Sighting
b) Levelling
c) Transferring point to ground
d) Drawing lines
Answer: a
Explanation: The presence of eye vane of object vane allows the alidade to bisect the required points which are near by the
station.

6. Orientation of table involves which among the following?

a) Traversing
b) Fore sighting
c) Back sighting
d) Measuring bearings
Answer: c
Explanation: Orientation by back sighting is a process that involves setting up of the plane table when there is no possibility
over the station mark.

7. Orientation by trough compass is done for obtaining precise values.

a) True
b) False
Answer: b
Explanation: Orientation by trough compass is low accurate method which is done when speed of the work is more important
than obtaining accurate values. Orientation by means of back sighting involves in obtaining more precise values.

8. Which of the following indicates the correct set of alidade?

a) Plain, reverse
b) Complex, telescopic
c) Plain, theodolite
d) Plain, telescopic
Answer: d
Explanation: In general, two types of alidades are used. They include plain, telescopic alidades. Now-a-days telescopic
alidade is fitted on the plane table which is making the work from complex to simple.
9. By plotting and recording values simultaneously, there is a possibility to occur more errors.
a) True
b) False
Answer: a
Explanation: It might be possible to note the wrong value while processing simultaneously, but it is one of the most accurate
methods which gives the best output.

10. In which of the following cases, orientation by back sighting is used?

a) When approximate levelling is required
b) When second point is available for orientation
c) When it is not possible to set instrument over station mark
d) When speed is important than accuracy
Answer: c
Explanation: Orientation by back sighting is used when it is not possible to set instruments over station mark and also for
obtaining more precise and accurate values

“Methods of Plane Tabling”.

1. Which of the following methods can be useful in having an enlarged output?
a) Intersection
b) Resection
c) Traversing
d) Radiation
Answer: d
Explanation: An enlarged output is required in case of improving accuracy in the traverse area. It can be obtained only in
case of radiation, as it is used in the case of small distances and the production of large output is quite simple and easy.

2. Which of the following methods is a widely used method of plane tabling?

a) Radiation
b) Intersection
c) Traversing
d) Resection
Answer: c
Explanation: Among the following, traversing is adopted in the usual manner. It involves a very simple procedure and also
gives more accurate values when compared to other processes.

3. Which of the following can give the best output?

a) Traversing
b) Intersection
c) Resection
d) Radiation
Answer: a
Explanation: Though resection involves in more accuracy, it is more time consuming. By considering the time factor usually
traversing is adopted and is given at most priority. It is also capable of giving accurate results.

4. Which of the following methods is more suitable in case of small distances?

a) Traversing
b) Radiation
c) Resection
d) Intersection
Answer: b
Explanation: Radiation process involves in recreating the station to station distance in an enlarged manner. It requires a lot
of time which makes it suitable only in case of small distances.

5. Which of the following methods is having a wider scope with the use of tacheometer?
a) Resection
b) Trisection
c) Intersection
d) Radiation
Answer: d
Explanation: Alidade can be used to locate the points and determining the traverse. If the point to point distance can be
obtained by tacheometer, radiation method can have wider scope in case of locating details regarding the points.

6. Which of the following is used to locate only details?

a) Radiation
b) Trisection
c) Resection
d) Traversing
Answer: a
Explanation: Radiation and intersection are having a common point that they both are able to locate the details other than
station points. With the information provided by these, instrument station points can be located.
7. Which of the following describes the usage of the traversing method?
a) Locating points
b) Survey line placement
c) Measuring angles
d) Measuring bearings
Answer: b
Explanation: Traversing is a very commonly used method that is involved only in the survey line placement between the
instrument stations in an open or closed traverse.

8. The figure indicates which of the following methods?

a) Traversing
b) Intersection
c) Radiation
d) Trisection
Answer: c
Explanation: The above mentioned figure indicates the process of radiation in which the station point is extended till it meets
the point on the sheet provided while conducting the process.

9. Which is of the following is used for locating details of the station points?
a) Radiation
b) Intersection
c) Trisection
d) Traversing
Answer: d
Explanation: The location of plane table stations can be carried out by traversing and resection methods, which involve in
determining only the station points. This key step because instrument has to be set at a definite point to continue further.

10. Which among the following set share the same working principle?
a) Traversing and Radiation
b) Traversing and trisection
c) Traversing and Resection
d) Traversing and intersection
Answer: a
Explanation: Traversing and Radiation share the same working principle. The only difference is that in the case of radiation
the observations are taken to those points which are to be detailed, while in case of traversing the observations are made to
those points which will subsequently be used as instrument stations

“Plane Table Surveying – Graphic Triangulation”.

1. Which among the following is not a method of plane table surveying?
a) Radiation
b) Trisection
c) Intersection
d) Resection
Answer: b
Explanation: The methods which are adopted in case of plane table surveying involve radiation, Intersection, resection and
traversing, which are used based on the type of output required.

2. The method of radiation is used when distances are small.

a) True
b) False
Answer: a
Explanation: In the method of radiation, a ray is drawn from the instrument station towards the point, the distance is
measured between the instrument station and that point by which, the point is located. This method is more suitable when
the distances are small.
3. Method of Intersection is used when _____________
a) Distance between point and instrument is very small
b) Distance between point and instrument is infinity
c) Distance between point and instrument is small
d) Distance between point and instrument is large
Answer: d
Explanation: Method of intersection is used when the distance between the point and the instrument station is either too
large or cannot be measured accurately due to some conditions. The location of an object is determined by sighting the
object from two plane table stations.

4. Which of the following methods required two instrument stations?

a) Radiation
b) Intersection
c) Resection
d) Traversing
Answer: b
Explanation: The location of an object is determined by sighting the object from two plane table stations and drawing the
rays. The intersection of these rays will give a position of the object, because of this it is essential to have at least two
instrument stations for locating any point.

5. Which among the following methods of plane table is most commonly used?
a) Intersection
b) Resection
c) Traversing
d) Radiation
Answer: a
Explanation: The method of intersection usually involves locating a station point and marking the remaining points, followed
by changing the instrument to another point and computing the remaining points from which the required distance between
the points can be found out with the minimal effort.

6. Which of the following set indicates the location of details of the survey?
a) Resection, intersection
b) Radiation, resection
c) Radiation, intersection
d) Traversing, resection
Answer: c
Explanation: The methods radiation and intersection usually involves collecting or locating the required details which
accessed for computing the survey. Traversing and resection involve the location of plane table stations.

7. Method of intersection is also known as _____________

a) Resection
b) Graphical triangulation
c) Radiation
d) Traversing
Answer: b
Explanation: Method of intersection is also known as graphical triangulation because it involves the formation of triangles in
computed traverse and moreover this process is a graphical method.

8. The process of determining the plotted position of the station occupied by the plane table is known as _________
a) Trisection
b) Radiation
c) Intersection
d) Resection
Answer: d
Explanation: By the resection process, the plane table station points are located in which they are taken as reference for
locating the remaining points of the traverse.

9. Orientation might cause a huge problem in method of resection.

a) True
b) False
Answer: a
Explanation: If the table is not correctly oriented at the station in the method of resection, the intersection of the two
resectors will not give the correct location of the station. The problem, therefore, lies in the orienting table at the stations.

10. The observations made in method of traversing can be used as ___________

a) Bisecting point
b) Traverse point
c) Instrument stations
d) Survey point
Answer: c
Explanation: The main difference between method of traversing and method of radiation is that in the case of radiation the
observations are taken to those points which are to be detailed while in the case of traversing the observations are made to
those points which will be subsequently used as instrument stations.
 “Plane Table – Three Point Problem”.
1. In three point problem, orientation and resection are done simultaneously.
a) True
b) False
Answer: a
Explanation: In the process of three point problem, the intersection of the three resectors in a point gives the location of the
instrument station. Thus, the orientation and resection are accomplished in the some operation.

2. Which of the following serves as a solution for three point problem?

a) Traverse method
b) Axis method
c) Mechanical method
d) Transit method
Answer: c
Explanation: The solution for three point problem can be solved by a mechanical method, graphical method and Lehman’s
method. Each one can be employed based on the problem raised due to orientation.

3. Mechanical method is also known as________

a) Graphical method
b) Axis method
c) Trial and error method
d) Tracing paper method
Answer: d
Explanation: Due to the usage of tracing paper involved in this process, mechanical method is also called as tracing paper
method.

4. In graphical method, why Bessel’s method is chosen the best?

a) Due to accuracy in result
b) Due to quick output
c) Due to ease in handling
d) Due to economical issues
Answer: a
Explanation: Among the several graphical methods available, Bessel’s method is chosen the best due to its accuracy in
obtaining the values which might help in producing accurate output.

5. Among the three point and two point problems, the solution from two point problem will serve better output?
a) True
b) False
Answer: b
Explanation: Three point problems are capable of producing precise values and accurate output than the solution from two
point problem. Because speed is the only factor concerned in case of two point problem solutions.

6. Which process involves more labour work?

a) Mechanical method
b) Graphical method
c) Two point problem
d) Three point problem
Answer: c
Explanation: When compared to the three point problem, the solution obtained from two point problem involves more labour
work as speed is the first priority.

7. Which among the following doesn’t serve as a solution for proper orientation of the plane table?
a) Resection by compass
b) Resection by three point problem
c) Resection by two point problem
d) Resection by graphical triangulation
Answer: d
Explanation: Graphical triangulation is a method usually involves locating a station point and marking the remaining points,
followed by changing the instrument to another point and computing the remaining points from which the required distance
between the points can be found out. It doesn’t come under the category of resection.

8. Which of the following methods of three point problem is a tedious one?

a) Lehman’s method
b) Graphical method
c) Axis method
d) Mechanical method
Answer: a
Explanation: Lehman’s process, also known as trial and error process, involves a lot of trial and error, which makes it a
tedious process.
9. Which shapes are generally formed in Lehman’s method?
a) Quadrilaterals
b) Triangles
c) Polygons
d) Circle
Answer: b
Explanation: A triangle is the most commonly used shape in case of surveying as it covers an entire area in a framework
which makes calculations easier.

10. Usage of Lehman’s method involves following certain rules.

a) True
b) False
Answer: a
Explanation: Lehman’s method is accompanied by certain rules which must be followed for obtaining an accurate solution for
solving three point problem

“Plane Table – Two Point Problem”.

1. Location of points is already done while considering two point problem.
a) False
b) True
Answer: b
Explanation: Two point problem is only considered when station point is able to visualize two other points of the traverse. By
this, other points of the traverse can be formed and the points are joined to form a traverse.

2. Error occurred due to orientation can be checked by _____________

a) Calculating table area
b) Calculating area
c) Measuring bearings
d) Measuring angles
Answer: d
Explanation: Orientation is the main process in case of plane tabling. Proper orientation must be done while carrying out this
process. Error due to improper orientation can be checked by measuring angles and their differences.

3. Which among the processes having more accuracy in its output?

a) Total station
b) Plane table surveying
c) Chain surveying
d) Compass surveying
Answer: a
Explanation: Plane table surveying is a rough process conducted in order to have an idea of the land and its condition for
construction. Due to this, it is not capable of producing accurate output in its recording.

4. Which of the following step can affect the entire process?

a) Traversing
b) Alidade
c) Orientation
d) Chaining
Answer: c
Explanation: All the steps involved in plane tabling are quite needed and must be done with more care. But the orientation
step, which is the heart of this process, must be done with at most importance and with acre so that remaining steps won’t
get disturbed.

5. For fixing any point, auxiliary point must be chosen.

a) True
b) False
Answer: a
Explanation: Auxiliary point is a reference point that must be considered so that the points remaining in the traverse can be
fixed. By this the entire traverse can be completed within no time.

6. Which of the following steps is involved in plane table surveying?

a) Tacheometric surveying
b) Measuring bearings
c) Measuring angles
d) Changing station points
Answer: d
Explanation: Plane table surveying involves simple steps like orientation, changing table to station points, usage of alidade
etc. But these can cause a serious error which can lead to repeating the entire process.
7. Which process involves more labor work?
a) Chaining
b) Compass surveying
c) Plane table surveying
d) Theodolite surveying
Answer: c
Explanation: Plane table surveying involves more labor work due to the fact that the table present in this process needs to
be shifted to the station points whenever it is necessary. It is to be done so as to cover the entire traverse.

8. How many alternatives were available in case of two point problem?

a) No alternatives
b) Maximum Two
c) Minimum one
d) Maximum one
Answer: b
Explanation: Two point and three point problems involve an alternative solution because this involves more cases as every
traverse doesn’t form the same polygon. Roughly two alternatives will be present in each.

9. Which process of plane table surveying is a tedious one?

a) Resection
b) Trisection
c) Intersection
d) Radiation
Answer: a
Explanation: Resection, which involves both three point and two point problems, is considered as the tedious process when
compared to the remaining classifications. These are done so as to decrease the errors due to improper orientation.

10. Two point problem involves in ______________

a) Locating details
b) Locating station points
c) Locating angles
d) Locating bearings
Answer: b
Explanation: Two point problem is used only in case of determining the station points by considering different procedures
which involve an auxiliary point

“Errors in Plane Tabling”.

1. The usage of telescopic alidade usually increases the occurrence of errors in a huge rate.
a) False
b) True
Answer: b
Explanation: The usage of telescopic alidade has the chances of increasing the errors. It can be due to the line of sight not
being perpendicular to horizontal axis, line of collimation not being perpendicular to the horizontal axis etc., which can be
minimised by proper usage.

2. Degree of precision depends on____________

a) Quality of instrument
b) Usage of the instrument
c) Surveyor
d) Type of work being done
Answer: a
Explanation: The quality of the instrument used will affect the recorded values and degree of precision depends upon the
character of survey, system adopted too.

3. Plain alidade will cause less error when compared to telescopic alidade.
a) False
b) True
Answer: b
Explanation: Telescopic alidade is a newly introduced one with a lot more benefits than plain alidade, but due o less
accuracy it lacks behind plain alidade.

4. In a magnetic area, which type of surveying can be employed?

a) Traverse surveying
b) Compass surveying
c) Theodolite surveying
d) Plane table surveying
Answer: d
Explanation: Other than plane table surveying, remaining methods need a compass for initiating the work in which it is not
possible to access compass in a magnetic area. Plane table surveying can be employed there as it can be done without
usage of compass.
5. When the difference in elevation between points is more, which of the following would be affected more?
a) Points plotted
b) Alidade position
c) Horizontality of board
d) Level of board
Answer: c
Explanation: If the difference in elevation between the points plotted is more, then the horizontality of the board will be
disturbed by which the entire process is halted until it is set right.

6. Plane table surveying is capable of providing accurate work.

a) True
b) False
Answer: b
Explanation: Plane table surveying involves both recording and plotting of points simultaneously which makes it less
accurate.

7. Which of the following must be checked at every station?

a) Values obtained
b) Traverse area
c) Points to be sighted
d) Orientation of table
Answer: d
Explanation: Orientation is done with a compass and there is a possibility of local attraction. Errors in orientation contribute
towards distortion of the survey. This orientation should be checked at as many stations as possible by sighting distant
objects which are already plotted.

8. Which of the following can cause more damage while using a plane table for surveying?
a) Climatic changes
b) Instruments used
c) Sighting error
d) Inaccurate centring
Answer: a
Explanation: Except climatic change, remaining errors can be minimised by an alternative. Climatic change may increase or
decrease the values from the original.

9. Which of the following errors cannot be minimised?

a) Error in instrument
b) Error in sighting
c) Error while plotting
d) Personal errors
Answer: c
Explanation: If the error is identified as an error due to plotting, there is no possibility other than re-surveying.

10. In plane table surveying, it is difficult to reproduce the map to some different scale.
a) False
b) True
Answer: b
Explanation: Since notes of measurements are not recorded, it is inconvenient to reproduce the map to some different scale

“Plane Table – Resection Method”.

1. Before conducting the resection procedure, orientation must be performed.
a) True
b) False
Answer: b
Explanation: Resection is done after the table has been properly oriented. If there is any mistake in orientation, the entire
process will go wrong and may end up repeating again.

2. Which of the following processes is employed in case of a small scale?

a) Trisection
b) Intersection
c) Radiation
d) Resection
Answer: d
Explanation: Resection is based on the orientation of the table which needs much more care for handling the process.
Covering a large area by the resection method makes it a tedious process. So, it is adopted for small scale.

3. Which of the following indicates the procedure for plotting of points occupied by the plane table?
a) Resection
b) Bisection
c) Trisection
d) Intersection
Answer: a
Explanation: Both resection and traversing are done so as to obtain the station points. Those are used for placing the plane
table and locating the remaining points.
4. The rays which are drawn from unknown location to a known location can be determined as ____________
a) Trisectors
b) Bisectors
c) Resectors
d) Intersectors
Answer: c
Explanation: Resection method involves in the usage of resectors. Resectors are the rays which can be drawn from an
unknown location to a known location. So, a relation can be established between the points.

5. Which among the following contains more amounts of errors in its procedure?
a) Orientation by compass
b) Orientation by back sighting
c) Orientation by three point problem
d) Orientation by two point problem
Answer: a
Explanation: Since compass gives a rough output and the orientation done by it isn’t accurate enough. So the orientation by
compass is employed in case of small scale works where speed of the work is considered.

6. In which of the following methods, graphical method is employed?

a) Back sight orientation
b) Compass orientation
c) Two point problem
d) Three point problem
Answer: d
Explanation: Three point method has been further classified as mechanical method, Lehman’s method and graphical
method. Each of them will be employed based on the type of work being done and the visibility of points.

7. The figure indicates which of the following procedures?

a) Two point problem

b) Three point problem
c) Compass orientation
d) Back sight orientation
Answer: b
Explanation: As it can be clearly seen that the station point can visualize three individual points, which makes it fall under the
category of three point problem.

8. Which of the following must be done correctly in order to prevent further errors?
a) Usage of alidade
b) Back sighting
c) Orientation
d) Traversing
Answer: c
Explanation: resection method is employed for having a clear idea about the station points. So, it requires proper orientation
of the table to continue further. Error in orientation can be corrected by following the classification methods.

9. Which of the following is not a classification of the resection method?

a) Orientation by compass
b) Orientation by back sighting
c) Orientation by three point problem
d) Orientation by fore sighting
Answer: d
Explanation: Resection method involves in determining plane table station points which makes the entire process depended
on the orientation of the table. It has been classified into Orientation by compass, Orientation by back sighting, Orientation
by three point problem, Orientation by two point problem.

10. Which among the following procedures is used in case of visibility of points is more from table station?
a) Three point problem
b) Two point problem
c) Compass orientation
d) Back sighting orientation
Answer: a

Explanation: Though two point and three point will come under the same category, the work employed will be different. In
three point problem at a time three points will be covered which makes the work to complete in a quick manner when
compared to two point problem.

“Plane Table – Errors and Precaution”.

1. Which of the following acts as an advantage of plane table surveying?
a) Accuracy in output
b) Inconvenient in wet climate
c) Heavy instruments
d) Used in magnetic areas
Answer: d
Explanation: Plane table finds its usage in the case of magnetic areas. When remaining methods are considered, it may
involve the usage of compass, which doesn’t work in magnetic areas. This is its major advantage over the remaining
methods.

2. Plane table surveying requires great skill.

a) False
b) True
Answer: a
Explanation: Plane table surveying involves very basic level principles, which doesn’t need any in depth knowledge. It can
be done in one setting if basics are strong enough.

3. Which of the following operation can be done clearly in case of plane table surveying?
a) Area computation
b) Sighting
c) Contouring
d) Traversing
Answer: c
Explanation: Plane table surveying involves in determining traverse of the area by which the area of the land can be
determined. Contouring can also be done with the help of plane tabling, which provides a clear and step by step procedure.

4. It is difficult for reproducing the traverse in different scale.

a) False
b) True
Answer: b
Explanation: Since the measurements which are obtained while doing the work aren’t recorded, it is a very difficult state to
reproduce the same map if required in different scale.

5. Which of the following can be a disadvantage to plane table surveying?

a) Heavy instruments
b) Convenient in wet climate
c) No Accuracy in output
d) Not used in magnetic areas
Answer: a
Explanation: Plane table involves in the usage of more amount of instruments, which makes it uncomfortable while working
in wet climatic conditions like rainy season.

6. Possibility of error in plane table surveying is ____________

a) Negligible
b) Zero
c) More
d) Less
Answer: d
Explanation: Error occurrence is a bit controllable in case of plane table surveying. But the usage of compass increases the
errors in the output obtained.

7. Let the instrument station be V and there is a displacement of 50 cm in its placement in the direction of ray. What is the
true position if the scale is 1cm = 700 meters?
a) 0.017 cm
b) 0.107 cm
c) 0.071 cm
d) 0.170 cm
Answer: c
Explanation: The true position due to displacement can be considered as
a*aꞌ = e*s meters. The value of s can be given as s = 1/700 and e = 50 cm. On substitution, we get
a*aꞌ = 50/700 = 0.071 cm.

8. Which of the following is an error occurred due to sighting?

a) Instrumental errors
b) Defective orientation
c) Personal errors
d) Natural errors
Answer: b
Explanation: Sighting is a process that involves in the determination of the station points. Error in sighting occurs due to
manipulation, it involves non-horizontality of board, defective orientation, defective sighting, centering.

9. Which of the following makes plane table not suitable in many cases?
a) More errors produced
b) Less errors produced
c) Zero errors
d) Negligible errors
Answer: a
Explanation: Plane table surveying, though having more methods involved, is not considered as the preferable method
because it may produce more amounts of errors when compared to other methods. But it is adopted when the speed of the
method is considered.

10. Which of the following is more in case of plane table surveying?

a) Mistakes
b) Corrections
c) Advantages
d) Disadvantages
Answer: c
Explanation: Plane table surveying involves more advantages like recording and plotting at a time, clear contouring, cheaper
than theodolite etc. even though more advantages were there but it is generally not considered because it involves more
instruments which makes it quite uncomfortable.

PLANE TABLE SURVEY OBJECTIVE TYPE QUESTIONS

1 In plane table survey the operation which must be carried out is
a) Resection
b) Orientation
c) Intersection
d) none of the above
2 The working edge of the alidade is known as the
a) Fiducial edge
b) Beveled edge
c) Parallel edge
d) vertical edge
3 The north line of the map is marked on the
a) Right hand bottom corner
b) Left hand top corner
c) Right hand top corner
d) left hand bottom corner
4 The U fork and plumb bob are required for
a) Centering
b) Leveling
c) Orientation
d) shifting
5 In accessible points may be located by the
a) Resection method
b) Intersection method
c) Radiation method
d) none of the above
 6 The accuracy with which the instrument station can be established is known as the
a) Strength of fix
b) Strength of accuracy
c) Strength of solution
d) none
7 The principle of plane table is
a) parallelism
b) triangulation
c) traversing
d) none
8 The plane table map cannot be plotted to a different scale as there is no?
a) log book
b) level book
c) field book
d) traverse book
9 The strength of fix is bad, if the plane table station is taken
a) Outside the great triangle
b) On the circumference of the great circle
c) Inside the great circle
d) none of the above
10 The survey in which the position of an object is fixed on a sheet of paper in the field by
sighting rays to the object is called
a. Compass survey
b. Theodolite survey
c. Chain survey
d. Plane table survey
11 the purpose of plane table survey is to
a. prepare very accurate plans of an area
b. prepare large topographical plans
c. fill in details in plans drawn by other surveys
d. draw longitudinal section and cross sections
12 Fiducial edge is the edge of
a. Trough compass
b. Plane table
c. “U” fork
d. Alidade
13 One of the uses of plane table survey in the department is to
a. Determine difference in elevation between two given points
b. Find distance between points on opposite bank of a river
c. Fill in details in a small scale map.
d. Study indivisibility of points
14 the purpose of traverse compass in plane table survey is to
a. draw a north line
b. orient the table
c. draw north line and as well orient the table
d. direct local attraction
15 Intersection method in plane tabling is more convenient when point to be plotted is
a. Near instrument and chaining is free
b. For from instrument and chaining is free
c. Near or far from instrument but chaining obstructed.
d. Not visible from instrument station
16 Beaman stadia are is useful in plane table survey to
a. Find difference of elevation
b. Find distance between two stations on ground.
c. Find the distance between three station on ground
d. Draw north line
17 the purpose of plumbing fork in plane table survey is to
a. check the verticality of the objects
b. balance the table
c. guide the surveyor as to on which side of the table he should stand
d. transfer the ground point to the sheet.
18 the function of an alidade in plane table survey is to
a. center the table
b. draw a ray to an object
c. fix the north direction on plan
d. fix the instrument station
19 A plane table is leveled by adjusting the
a. Leveling screws
b. ball socket arrangement
c. legs of the table
d. none of the above
20 The operation of keeping the plane table at an instrument station in such a way it
occupies the position parallel to the one at the previous station is called
a. Centering
b. Orientation
c. Back sighting
d. Setting up the table

21 Plane table can be oriented at the successive stations with the help of
a. U-frame
b. Spirit level
c. Trough compass
d. Alidade
22 The method of locating a point on the sheet by drawing a ray from the plane table station
to the point and plotting to scale along the ray, the distance measured is called
a. Intersection method
b. Radiation method
c. Traversing method
d. None of the above methods
23 two point problem is solved by
a. mechanical method
b. Bessel’s method
c. Trail and error method
d. None of the above methods
24 The method by which an instrument station is established with reference to two points
already plotted on the plan is called
a. Radiation
b. Resection
c. Traversing
d. Intersection
25 Bessel’s solution of the three point problem is a/an
a. Mechanical method
b. Graphical method
c. Intersection method
d. Traversing method
26 Accuracy of centering plane table need not be insisted
a. If length of sight is small
b. If length of sight is very long
c. In any observation
d. If points sighted are at same elevation.
27 By plane table surveying
a. Field work alone is possible
b. Plotting alone is possible
c. Both field work and plotting are possible simultaneously
d. Both field work in the field and plotting in office are possible.
28 an advantage of plane table survey is that
a. the field book is not necessary
b. it is intended for accurate work
c. it has many accessories
d. the replotting of the survey to different scale is easy
 29 The ground station and its plotted position on the sheet are set in the same vertical plane
with the help of
a. Spirit level
b. Compass
c. Alidade
d. Plumbing fork
30 The shifting head in a theodolite serves to
a. Move the instrument from place to place
b. Level the plate levels quickly
c. Focus t he objective quickly
d. Set up quickly over station mark