SURVEYING QUIZ

foresight and backsight

foresight only

foresight only

foresight and intermediate sight

High oblique

Low oblique

None of these

Vertical

Plane surveying

Planet observations

Geodetic surveying

Star observations

line parallel to the mean spheriodal surface of earth

line passing through the objective lens and the eye-piece of a dumpy or tilting level

line passing through the center of cross hairs and the center of eye piece

horizontal line

None of these

Swing

Tip

Tilt

Increases as the horizontal distance increases from the principal point

All listed here

Decreases as the flying height increases

Increases as the ground elevation increases

To indicate the accuracy of the survey work

To plot the offsets

To plot the chain lines

To increase the out-turn

Intermediate sights

Fore sights

Reduced levels

Back sights

B =f/bH

B = b/fH

B = H/bf

B = bH/f

sometimes additive and sometimes subtractive

always zero

always additive

always subtractive