Engineering :: Surveying

@ : Home > Civil Engineering > Surveying

11.

The representative fraction of the scale is the ratio of the distance on the map or drawing to the corresponding distance on the ground

Yes

12.

When 1 cm on a map represents 10 m on the ground, the representative fraction of the scale is

A.	1?10	B.	1?100
C.	1?1000	D.	1?10000

13.

The representative fraction 1 / 2500 means that the scale is

A.	1 cm = 0.25 m	B.	1 cm = 2.5 m
C.	1 cm = 25 m	D.	1 cm = 250 m

14.

A plain scale is used to read

A.	one dimension	B.	two dimensions
C.	three dimensions	D.	all of these

15.

A diagonal scale is used to read

A.	two	B.	three
C.	four

16.

A scale which has a common representative fraction, but read in different measures, is called a

A.	plain scale	B.	diagonal scale
C.	shrunk scale	D.	comparative scale

17.

A scale used for measuring fractional parts of the smallest division of the main scale is known as vernier scale.

Correct

Incorrect

18.

In a direct vernier, the smallest division of a vernier is

A.	equal to	B.	shorter than
C.	longer than

19.

In a retrograde vernier, the smallest division of a vernier is

A.	equal to	B.	shorter than
C.	longer than

20.

With a simple vernier, readings can be taken in one direction only.

Yes