The Diaphragm of a Stadia Theodolite is Normally Fitted With
By BYJU'S Exam Prep
Updated on: September 25th, 2023
The diaphragm of a stadia theodolite is fitted with two additional
a. Horizontal hairs
b. Vertical hairs
c. Horizontal and two vertical hairs
d. None of these.
Choose the correct answer from the options given above.
Table of content
Answer- C. Horizontal hairs
The diaphragm of a stadia theodolite is fitted with two additional horizontal hairs
Solution
Stadia line or the stadia hairs is the crosshairs marked on the reticle of a theodolite.
Stadia hairs are the horizontal hairs marked in the theodolite are in any other surveying instrument.
Intercept between stadia hairs is known as stadia interval denoted as “s”.
The horizontal distance can be calculated as D = Ks+C
- where K is multiplying constant and C is the additive constant.