SURVEYING QUIZ

Tension = (P - Ps)L/AE

Sag = L³w²/24P² where w is the weight of tape/m

Slope = (h²/2L) + (h⁴/8L³) where h is height difference of end supports

All of these

f tan θ

f sec θ

f sin θ

f cos θ

sin α = sin φ sec δ

sin α = sin φ cosec δ

sin α = cos φ cosec δ

sin α = cos φ sec δ

Photo isocenter and ground isocenter

Photo plumb point and ground plumb point

All listed here

Photo principal point and ground principal point

provides a check on the reduction of intermediate point levels

is not suitable for levelling with tilting levels

is less accurate than height of instrument method

quicker and less tedious for large number of intermediate sights

1 degree of latitude

1 minute of latitude

1 degree of longitude

1 minute of longitude

more than true R.L.

true R.L.

less than true R.L.

None of these

cos λ

cot λ

tan λ

sin λ

require slope correction

do not require slope and tension corrections

require tension correction

require slope and tension corrections

degree of accuracy required

All of these

method of setting out the perpendiculars and nature of ground

scale of plotting