# Category: Surveying

## Short note on Theodolite and important parts of a Theodolite

It is an instrument which is used mainly for accurate measurement of horizontal and vertical angles up to 10′ or 20′. Theodolite is used for following purposes: to measure horizontal angle and vertical angles. Theodolite is of two types: (1) Transit theodolite (2) Non-transit theodolite. (1) Transit Theodolite: In this...

## Advanced Surveying MCQs Practice Set

1. If the equatorial distance between two meridians is 100 km, their distance at 60o latitude will be 1000 km 600 km 800 km 500 km (Ans) 400 km 2. Pick up the incorrect statement from the following. In a spherical triangle every angle is less than two right angles sum...

## Surveying MCQs Practice Set

In plane surveying, The curvature of the earth is taken into consideration The curvature of the earth is not taken into consideration (Ans) The surveys extend over small areas (Ans) The surveys extend over large areas 2. In geodetic surveying, the curvature of the earth is taken into consideration Agree...

## Difference between Height of Instrument (HI) and Rise and Fall method

S.No.  Line of Collimation or HI method Rise and fall method Rise and fall method 1 It is more rapid and saves a considerable time and labour.  It is laborious as the staff reading of each station is compared, to get a rise or fall. 2 It is well adopted...

## Difference between Plane Surveying and Geodetic Surveying

Primary divisions of surveying are: Plane Surveying Geodetic Surveying Plane Surveying Geodetic Surveying The surveying in which earth surface is considered as plane surface. The surveying in which curvature/surface of the the earth is considered as curved surface. Earth’s curvature is ignored. Earth’s curvature is considered. The line joining any...

## Difference between Whole Circle Bearing(WCB) andReduced(Quadrantal)Bearing System(RBS)

S.NO. Whole Circle Bearing(WCB) Reduced(Quadrantal) Bearing System 1. Bearings (angles) are taken towards the clockwise direction from magnetic north. Bearing are always taken from magnetic north or south whichever is nearer. 2. Bearings are always taken in a clockwise direction. Bearings are taken in clockwise or anticlockwise direction. 3. Bearings...

## Different types of Chains used in Surveying

Chains are made up of galvanized mild steel wire of 4mm diameter having number of links in series. The ends of links were bent like loop. The links were connected by three small circular rings. Brass handles were provided on each end of chain with a groove to hold an...