Course Content
Farm structure ( buildings )
0/15
Classification of building
Features of load bearing and non-load bearing buildings:
Components of building
Classification of foundation
Isolated footing or pad foundation
Combined footing
Pile foundation
For 1 storey brick wall building in 1:6 cement mortar
Classification of roof
Key Facts to remember
Structural materials
Types of cement
Quality of cement
Bulking of sand
Concrete mixed design
Planning, Layout and functional requirements of Dairy House
0/3
Dairy House
Types of dairy housing
Construction details of dairy cattle house
Feed storage structure
0/2
Farm silo
Types of silo
ESTIMATION AND COSTING
0/4
Estimation and costing
Approximate method
Detailed Estimation method
Procedure for preparation of detailed estimation and costing of agriculture structural building
FARMSTEAD
0/3
Introduction
How to select a farmstead?
Avoiding aspects in the farmstead selection/ Precautions
Ventilation and Thermal Insulation
0/4
Ventilation
Types of Ventilation
Thermal insulation
Thermal conductivity (K)
Introduction to Surveying
0/52
Introduction
Types of Surveying
Classification of surveying
Principles of Surveying
Some terminologies
Transversing
Units of Measurements
Plans & Maps
Scales
Types of Scale
Choice of scale
Techniques for Distance Measurement
 Instruments for Chaining
Degree of Accuracy in chaining
Chain
Types of chains
Steel Band
Tapes
Ranging Rods
Arrows (Chain pins)
Open Cross-Staff
Working Principle of open-cross staff
Optical Square
Chaining a line
Errors in measurement due to incorrect length of chain
Ranging
Errors in Surveying
Chain Surveying
Key Terms in Chain Surveying
Field Procedure
Obstacles in Chain Survey
Designation of Bearings
Fore Bearing (FB) and Back Bearing (BB)
Magnetic Declination and Its Variations
Bearing Computation Formulas
Variations in Magnetic Declination
Magnetic Compass
Types of Compasses
Local Attraction
Methods of Correcting Local Attraction
Traverse Plotting
Levelling
Methods of Levelling
Types of Levels
Temporary Adjustments of a Level
Collimation Error and Two Peg Test
Booking methods, their reduction and arithmetic checks
Gradient of a line
Uses of levelling
Contouring
Errors in Levelling
Adjustments of Level Circuits
Learn Farm Structure and Surveying with Rahul
About Lesson

Fore Bearing (FB) and Back Bearing (BB)

  • FB: Bearing in the direction of progress.
  • BB: Bearing in the opposite direction.

Formulas

a) In WCB System

BB = FB ±1800

BB=FB±1800

  • Add 180° if FB < 180°
  • Subtract 180° if FB > 180°

 

b) In QB System

FB

BB

N θ E

S θ W

S θ E

N θ W

S θ W

N θ E

N θ W

S θ E
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