Deck 3: Surveying and Levelling: Part B

Question 1

Surveys which are carried out to depict mountains, rivers, water bodies, wooded areas and other cultural details, are known as

A)cadastral surveys
B)city surveys
C)topographical surveys
D)guide map surveys

Answer 1

topographical surveys

Question 2

Magnetic declination at any place

A)remains constant
B)does not remain constant
C)fluctuates
D)changes abruptly.

Answer 2

does not remain constant

Question 3

The method of finding out the difference in elevation between two points for eliminating the effect of curvature and refraction, is

A)reciprocal levelling
B)precise levelling
C)differential levelling
D)flying levelling

Answer 3

reciprocal levelling

Question 4

The horizontal angle between true meridian and magnetic meridian, is known

A)bearing
B)magnetic declination
C)dip
D)convergence.

Question 5

Ranging in chain survey means

A)looking at an isolated point not on the line
B)establishing an intermediate point on the line
C)determining the distance between end points
D)determining the offset distance

Question 6

Reduced bearing of a line is an angle between

A)north line and given line measured clockwise
B)north line and given line measured anticlockwise
C)east or west and the given line
D)given line and the part of the meridian whether N end or S end, lying adjacent to it.

Question 7

The magnetic meridian at any point, is the direction indicated by a freely suspended

A)magnetic needle
B)and properly balanced magnetic needle
C)properly balanced and uninfluenced by local attractive force
D)magnetic needle over an iron pivot.

Question 8

The zero of the graduated circle of a prismatic compass is located at

A)north end
B)east end
C)south end
D)west end.

Question 9

Profile levelling is usually done for determining

A)contours of an area
B)capacity of a reservoir
C)elevations along a straight line
D)boundaries of property

Question 10

The line of collimation method of reduction of levels, does not provide a check on

A)intermediate sights
B)fore sights
C)back sights
D)reduced levels.

Question 11

A well-conditioned triangle has no angle less than

A)20°
B)30°
C)45°
D)60°.

Question 12

Check lines (or proof lines) in Chain Surveying, are essentially required

A)to plot the chain lines
B)to plot the offsets
C)to indicate the accuracy of the survey work
D)to increase the out-turn

Question 13

The operation of revolving a plane table about its vertical axis so that all lines on the sheet become parallel to corresponding lines on the ground, is known

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

Question 14

There are two stations A and B. Which of the following statements is correct :

A)the fore bearing of AB is AB
B)the back bearing of AB is BA
C)the fore and back bearings of AB differ by 180°
D)all the above.

Question 15

The boundary of water of a still lake, represents

A)level surface
B)horizontal surface
C)contour line
D)a concave surface.

Question 16

The imaginary line passing through the intersection of cross hairs and the optical center of the objective, is known as

A)line of sight
B)line of collimation
C)axis of the telescope
D)none of these.

Question 17

The rise and fall method of reduction of levels, provides a check on

A)back sights
B)fore sights
C)intermediate sights
D)all of these.

Question 18

The constant vertical distance between two adjacent contours, is called

A)horizontal interval
B)horizontal equivalent
C)vertical equivalent
D)contour interval

Question 19

The line normal to the plumb line is known as

A)horizontal line
B)level line
C)datum line
D)vertical line.

Question 20

Contours of different elevations may cross each other only in the case of

A)an overhanging cliff
B)a vertical cliff
C)a saddle
D)an inclined plane.

Question 21

In plan scale is …

A)1cm = 10 m or < 10 m
B)>10 m
C)none
D)all

Question 22

If area is less than 250°km ²which method is used?

A)Geodetic survey
B)Plane Survey
C)none
D)all

Question 23

Scale can be represent by

A)Engineers scale
B)RF
C)Graphical Scale
D)All of above

Question 24

True bearing of a line = magnetic bearing + magnetic declination If declination is towards………

A)East
B)West
C)none
D)all

Question 25

Is a known as a marking pin?

A)Arrow
B)Peg
C)none
D)all