Surveying

Surveying is ....

• Positioning features on and below the surface of the Earth and representing these features on a map

• Positioning features on the surface of the Earth and representing these features on a map

• Positioning features below the surface of the Earth and representing these features on a map

• None of the above

GNSS refers to

• Geotechnical Network Satellite System

• Geotechnical Navigation Satellite System

• Global Navigation Satellite System

• Global Network Satellite System

The three basic quantities that are measured in surveying are ...

• Heights

• Temperature

• Angles

• Distances

• Pressure

Which of the following accessories are required for differential leveling?

• Leveling equipment

• Leveling staff

• Tripod

• Tape

• All of the above options

Find right equation of allowable misclosure

• Allowable misclosure = $\pm m\sqrt{n}$
  

• Allowable misclosure = $\pm m^2n$

• Allowable misclosure = $\pm n\sqrt{m}$

• Allowable misclosure = $\pm\frac{m}{n}$

Heights can be determined by using ...

• Rise and Fall method

• Calibration method

• Height collimation method

• Reduced structure method

Barometric Levelling is ...

• Uses atmospheric pressure to estimate elevation

• Determines elevations using vertical angles and distances

• Determines elevations using temperature change in boiling water

• Used for determining heights of ceilings or underside of bridges

Total station should be calibrated regularly for precision survey

• True

• False

Azimuths is

• Direction of line between two points

• Direction of line between four points

• Intersection of several lines

• Providing horizontal and vertical control

When using a steel tape, tension correction is necessary because:

• Steel contracts at higher tension

• Tapes are calibrated under a specific standard tension

• Fiberglass tapes are more elastic

• The slope angle affects horizontal projection