Tacheometry

The branch of surveying in which horizontal and vertical positions of a point are determined by making optical observations is

• tacheometry

• telemetry

• tachemetry

• all obove

The multiplying constant of a tacheometer is

• 100

• 200

• 50

• 1

The diapharm of a stadia theodolite is normally fitted with two additional

• vertical hair

• horizontal hair

• horizontal and two-vertical hair

• none of above

The stadia method in tacheometry is used to to determine

• horizontal angles

• vertical angles

• horizontal distances

• horizontal and vertical distances

If focal length of object glass is 25 cm, stadia interval is 1.25 cm and the distance of object glass is 15 cm, what is the value of additive constant?

• 0.1

• 0.4

• 1.66

• 20

Calculate the horizontal distance if the intercept on vertical staff is observed as 0.75 m from tacheometer

• 0.75 m

• 7.5 m

• 75 m

• 750 m

Tacheometry is preferred over taping on undulating ground

• True

• False

Tacheometry is suitable for preliminary location survey

• True

• False

The horizontal distance equation is

• D= s + KC

• D=Ks + C

• D=2s + C

From figure above, calculate the horizontal distance if the the length of slope is 5.2 m with 30 degrees.

• 5.20 m

• 4.50 m

• 4.0 m