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211.

The plane table surveying is

A.	most suitable for preparing small-scale maps	B.	particularly advantageous in magnetic areas
C.	less costly than a theodolite survey	D.	all of the above

212.

In plane table surveying, field work is recorded in a field book to be plotted afterwards.

Agree

Disagree

213.

The operation of turning the table so that all the lines on the paper are parallel to the corresponding lines on the ground, is called

A.	levelling	B.	centering
C.	setting	D.	orientation

214.

The plotting of small areas which can be commanded from a single station, is usually done on the plane table by the method of

A.	radiation	B.	intersection
C.	traversing	D.	resection

215.

The method of intersection in plane tabling is commonly used for

A.	locating the distant and inaccessible points	B.	locating the broken boundaries
C.	locating the points which may be used subsequently as the instrument stations	D.	all of the above

216.

The method of plane tabling commonly used for establishing the instrument stations only, is a

A.	method of radiation	B.	method of intersection
C.	method of traversing	D.	method of resection

217.

According to Lehman's rule of plane tabling

A.	the distance to the point sought from each of the three rays is proportional to the distance of the three known points from the instrument station	B.	when the instrument station is outside the great circle, the point sought is always on the same side of the ray drawn to the most distant point as the intersection of the other two rays
C.	when looking in the direction of the reference points, the point sought is on the same side of each of the three rays	D.	all of the above

218.

The strength of 'fix' of a plane table from three known points is good if the middle station is

nearer

farther

219.

The strength of 'fix' of a plane table from three known points is poor if the instrument station is near the great circle.

Correct

Incorrect

220.

A reverse curve consists of

A.	a single curve of a circle connecting two straights	B.	two arcs of different radii bending in the same direction
C.	two arcs of equal radii bending in the same direction	D.	two arcs of equal or different radii bending in the opposite directions