QUIZ 1

Below are the tools used in levelling fieldwork, except:

• Tripod

• Staff

• Bubble staff

• Total station

Identify the name of a reference fixed point whose elevation is known.

• Reduced level

• Bench mark

• Change point

• Station

Which term is used for the surface to which elevations are referred?

• Level surface

• Level line

• Horizontal plane

• Datum

A point where both Fore sight and Back sight are taken is called:

• Intermediate sight

• Change point

• Station

• • Bench mark

A reading taken on a point between the Back sight (BS) and Fore sight (FS) in the levelling process is called:

• • Change point

• • Fore sight

• Intermediate sight

• Back sight

The elevations of points on the Earth are the vertical distances above or below the datum.

• True

• False

Automatic level ____________________

• Has a firmly secured telescope which can rotate only in horizontal plane.

• Has a firmly secured telescope which can rotate only in vertical plane.

• Has no rotational arrangement.

• Cannot be used for checking points in the same horizontal plane.

Which branch of surveying is used to find the elevations of points on Earth with respect to a datum?

• Levelling

• Contouring

• Traversing

• Plane table surveying

While doing construction work, which among the following is more suitable?

• Rise and Fall method

• Traversing

• Height of Collimation method

• Compass surveying

Rise and fall method provides check in calculations for all sights.

• True

• False