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Engineering Mathematics > Surveying > Flashcards

Surveying Flashcards

1
Q

What is the formula for Tangent Distance?

A

T = Rtan(I/2)

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2
Q

What is the formula for Long Chord?

A

C = 2Rsin(I/2)

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3
Q

What is the formula for Length of the Curve?

A

LC= 20I/D

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4
Q

What is the formula for arc basis?

A

D = 1145.916/R

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5
Q

What is the formula for Middle Ordinate?

A

M = R (1- cos(I/2))

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6
Q

What is the formula for External distance?

A

E = R/cos(I/2) - R

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7
Q

What is the formula for subangles?

A

d = CD/20

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8
Q

What is the formula for subchords?

A

C = 20d/D

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9
Q

Point of tangency where the curve leaves the tangent

A

Point of Curvature(PC)

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10
Q

Point of tangency where the curve meets the other tangent

A

Point of Tangency (PT)

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11
Q

Point of where the two tangents meet

A

Point of Intersection(PI)

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12
Q

Angle of intersection of the tangents

A

Central Angle (I)

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13
Q

Tangent measured from PC or PT to the vertex of PI

A

Tangent Distance (T)

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14
Q

Arc length from PC to PT

A

Length of Curvature (LC)

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15
Q

Straight line drawn from PC to PT

A

Long Chord (C)

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16
Q

Radius of the circular curve

A

Radius

17
Q

Distance measured from the vertex to the midpoint of the curve

A

External Distance (E)

18
Q

Measured from the midpoint of the curve to the midpoint of the Chord

A

Middle Ordinate(M)

19
Q

The point of the common tangent where the two curves join

A

Point of Compound Curvature (PCC)

20
Q

Consist of two or more consecutive simple curves having different radius, but whose centers lie on the same side of the curve, likewise any two tangent at their meeting point.

A

Compound Curves

21
Q

Subtended angle of the first curve

A

Central Angle of the First Simple Curve (I1)

22
Q

Subtended angle of the second curve

A

Central Angle of the Second Simple Curve (I2)

23
Q

Distance from PC to PI

A

Back Tangent (T1)

24
Q

Distance from PT to PI

A

Forward Tangent (T2)

25
Q

Point of Intersection of the first curve on a compound curve

A

Vertex of the First Simple Curve (A)

26
Q

Point of Intersection of the second curve on a compound curve

A

Vertex of the Second Simple Curve (B)

27
Q

Tangent distance of the first simple curve

A

t1

28
Q

Tangent distance of the second simple curve

A

t2

29
Q

Straight line from A to B of a compound curve

A

Common Tangent (AB)

Engineering Mathematics (9 decks)

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