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Construction of Foundations for Bridges
Questions and Correct Answers/ Latest
Update / Already Graded
Bridge Layout
Ans: Accurate positioning of bridge center lines and piers.
Principal Reference Lines
Ans: Longitudinal and transverse lines for bridge alignment.
Tangent Points
Ans: Points where bridge curves meet straight lines.
Theodolite
Ans: Instrument for measuring angles in horizontal and vertical
planes.
Pier-to-Pier Distance
Ans: Distance measured between bridge piers.
Base Line
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Ans: Reference line for setting out bridge foundations.
Intersection of Sight Lines
Ans: Point where three sight lines converge for accuracy.
Triangle of Error
Ans: Area formed by intersecting sight lines indicating
measurement uncertainty.
Invar Tape
Ans: Precision measuring tape used for linear measurements.
Electronic Distance Measuring Equipment
Ans: Device for accurate distance measurement using
electronic signals.
Concrete Pillars
Ans: Support structures for accurate measurement placement.
Spring Balances
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Ans: Tools for applying specified tension to measuring tape.
Tape Reading Corrections
Ans: Adjustments for tension, temperature, and slope in
measurements.
Culverts
Ans: Structures allowing water flow under roads or railways.
Lean Concrete
Ans: Low-strength concrete used for foundation layers.
Bearing Capacity
Ans: Soil's ability to support structural loads.
Footings
Ans: Widened base structures to distribute load effectively.
Scoured Bed Level
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Ans: Lowest anticipated level of soil erosion.
Rock Keying
Ans: Embedding foundations into rock for stability.
Soft Soils
Ans: Ground conditions requiring special foundation
techniques.
Rafts
Ans: Large flat foundations used in soft soil conditions.
Foundation Depth
Ans: Minimum depth for stability, typically 1.75 meters.
Weathered Rocks
Ans: Rocks that are unsuitable for stable foundations.
Rafts
All rights reserved © 2025/ 2026 |
Construction of Foundations for Bridges
Questions and Correct Answers/ Latest
Update / Already Graded
Bridge Layout
Ans: Accurate positioning of bridge center lines and piers.
Principal Reference Lines
Ans: Longitudinal and transverse lines for bridge alignment.
Tangent Points
Ans: Points where bridge curves meet straight lines.
Theodolite
Ans: Instrument for measuring angles in horizontal and vertical
planes.
Pier-to-Pier Distance
Ans: Distance measured between bridge piers.
Base Line
All rights reserved © 2025/ 2026 |
, Page |2
Ans: Reference line for setting out bridge foundations.
Intersection of Sight Lines
Ans: Point where three sight lines converge for accuracy.
Triangle of Error
Ans: Area formed by intersecting sight lines indicating
measurement uncertainty.
Invar Tape
Ans: Precision measuring tape used for linear measurements.
Electronic Distance Measuring Equipment
Ans: Device for accurate distance measurement using
electronic signals.
Concrete Pillars
Ans: Support structures for accurate measurement placement.
Spring Balances
All rights reserved © 2025/ 2026 |
, Page |3
Ans: Tools for applying specified tension to measuring tape.
Tape Reading Corrections
Ans: Adjustments for tension, temperature, and slope in
measurements.
Culverts
Ans: Structures allowing water flow under roads or railways.
Lean Concrete
Ans: Low-strength concrete used for foundation layers.
Bearing Capacity
Ans: Soil's ability to support structural loads.
Footings
Ans: Widened base structures to distribute load effectively.
Scoured Bed Level
All rights reserved © 2025/ 2026 |
, Page |4
Ans: Lowest anticipated level of soil erosion.
Rock Keying
Ans: Embedding foundations into rock for stability.
Soft Soils
Ans: Ground conditions requiring special foundation
techniques.
Rafts
Ans: Large flat foundations used in soft soil conditions.
Foundation Depth
Ans: Minimum depth for stability, typically 1.75 meters.
Weathered Rocks
Ans: Rocks that are unsuitable for stable foundations.
Rafts
All rights reserved © 2025/ 2026 |
