In surveying, curves are geometrical shapes that connect straight segments in construction projects. They are regular bends that are used in roads, railways, and canals to gradually change direction. Curves are also used in the vertical plane to avoid abrupt changes in grade.    There are two main types of curves used in surveying: Horizontal curves: Used to transition smoothly between straight sections of a road or railway Vertical curves: Used to provide a gradual change in elevation along the alignment  A compound curve is a type of curve that consists of two or more circular curves... Show more

In surveying, curves are geometrical shapes that connect straight segments in construction projects. They are regular bends that are used in roads, railways, and canals to gradually change direction. Curves are also used in the vertical plane to avoid abrupt changes in grade. 
 

There are two main types of curves used in surveying:
Horizontal curves: Used to transition smoothly between straight sections of a road or railway
Vertical curves: Used to provide a gradual change in elevation along the alignment 

A compound curve is a type of curve that consists of two or more circular curves connected end to end with different radii and centers. Compound curves are used when a more gradual transition between straight sections is required. 
A reverse curve is another type of curve that consists of two simple curves joined together but curving in opposite directions. 

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Surveyor Practice Test: Curves & Setting Out Curves

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25 Questions

1. What is 'e' in the formula

Maximum frictionMaximum super elevationMaximum elevationEfficiency

2. What is the distance between point of inter section to point of tangency?

External distanceLong chordTangent distanceLength of the curve

3. What is the degree of the curve for arc length 30m?

BCAD

4. Which curve is setting out by taking offsets or ordinator from the long chord?

SummitSpiralSag curveHorizontal

5. What is the distance from mid point of the curve to point of inter section?

Length of the curveExternal distanceTangent distanceLength of the chord

6. The angle subtended by any chord at any centre as twice the angle between.

Intersectiona and deflection angleBack tangent and forward tangentChord and tangentNormal and sub chord

7. What is the another name of commencement of the curve?

Point of the curveApexPoint of tangencyPoint of inter section

8. What is the total length of the curve from point of commencement to point of tangency?

External distanceApex distanceTangent distanceLength of the curve

9. What is 'V' in the formula

Speed of the vhicle in kmSpeed of the vhicle in km/hSpeed of the vhicle in m/hSpeed of the vehicle in m

10. What is 'X' in the figure?

SummitBack tangentForward tangentLong chord

11. Which is the name of curve in the figure?

SummitCompoundReverseSag

12. What is 'X' in the figure?

Tangent distanceForward tangentLong chordBack tangent

13. What factor for designation of the curve?

LengthDegreeRadiusAngle

14. What is the regular bent provided in the line of communication say railway or highway alignment?

Poly lineCirclesPolygonal linesCurve

15. Which varies inversely to the radius of the curve

Length of the curveDegree of the curveAngle of the curveDiameter of the curve

16. What is the width of board gauge in railway track?

167.6 m100 m1.676 m16.76 m

17. Which curve having single radius connecting two straight lines?

SimpleTransitionReverseCompound

18. What is the degree of the curve for arc length of 20m?

DABC

19. Which degree forms flat curves?

LargeSmallMediumSame

20. What is the minimum radius of the curve in railways?

BADC

21. Which curve is generaly introduced on highway between a straight and circular curve to provide ease and gradual change of direction?

TransitionReverseCompoundSimple

22. Which curve is sett out by taking offsets from the tangents?

Sag curveHorizontalSummitSpiral

23. Which angular is quante accurage and frequently used on highways and railways for setting out curve?

Rankine's method of deflection angleTaking offsets from the tangentsTachemoetric methodSuccessive bisection of arc

24. What is 'X' in the figure?

Point of inter sectionDeflection angleSummit of the curveInter section angle

25. What is 'X' in the figure?

Length of the curveBack tangentForward tangentTangent distance