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Farm structure ( buildings )
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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
Building Classification and Structural Components -Objective Practice Set
00:10:00
Planning, Layout and functional requirements of Dairy House
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Dairy House
Types of dairy housing
Construction details of dairy cattle house
Complete Guide to Planning, Layout, and Functional Requirements of a Dairy Cattle House for Optimal Productivity-Objective Practice Set
00:10:00
Feed storage structure
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Farm silo
Types of silo
Feed Storage Structures – Objective Practice Set
00:10:00
ESTIMATION AND COSTING
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Estimation and costing
Approximate method
Detailed Estimation method
Procedure for preparation of detailed estimation and costing of agriculture structural building
Estimation and Costing in Agricultural Construction-Objective Practice Set
00:10:00
FARMSTEAD
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Introduction
How to select a farmstead?
Avoiding aspects in the farmstead selection/ Precautions
Farmstead Planning and Management – Objective Practice Set
00:10:00
Ventilation and Thermal Insulation
0/5
Ventilation
Types of Ventilation
Thermal insulation
Thermal conductivity (K)
Farmstead Planning, Ventilation & Thermal Insulation – MCQ Practice Set
00:10:00
Introduction to Surveying
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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
Introduction to Surveying – Foundation Quiz for Agriculture & PSC Aspirants
00:10:00
Master Farm Structure and Surveying – Notes, Case Studies & Practical Insights – with Rahul

Working Principle of open-cross staff

  • Used to lay out right angles from a chain line.
  • Sight object through the narrow slit in line with the horse hair on the wider slit.
  • Rotate the instrument until the ranging rod is visible in the slit line.
  • Then sight through the perpendicular pair of slits, and have a helper place a ranging rod in that line of sight.
  • The line joining the base of the cross-staff and second ranging rod is perpendicular to the original chain line.

 

Key Points to Remember

  • Open Cross-Staff is basic but effective for right angle setting.
  • No angular measurement is done — only visual alignment.
  • Essential for setting offsets and boundaries in chain surveying.
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