Surveying

Question 1

What is the formula for Tangent Distance?

Answer 1

T = Rtan(I/2)

Question 2

What is the formula for Long Chord?

Answer 2

C = 2Rsin(I/2)

Question 3

What is the formula for Length of the Curve?

Answer 3

LC= 20I/D

Question 4

What is the formula for arc basis?

Answer 4

D = 1145.916/R

Question 5

What is the formula for Middle Ordinate?

Answer 5

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

Question 6

What is the formula for External distance?

Answer 6

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

Question 7

What is the formula for subangles?

Answer 7

d = CD/20

Question 8

What is the formula for subchords?

Answer 8

C = 20d/D

Question 9

Point of tangency where the curve leaves the tangent

Answer 9

Point of Curvature(PC)

Question 10

Point of tangency where the curve meets the other tangent

Answer 10

Point of Tangency (PT)

Question 11

Point of where the two tangents meet

Answer 11

Point of Intersection(PI)

Question 12

Angle of intersection of the tangents

Answer 12

Central Angle (I)

Question 13

Tangent measured from PC or PT to the vertex of PI

Answer 13

Tangent Distance (T)

Question 14

Arc length from PC to PT

Answer 14

Length of Curvature (LC)

Question 15

Straight line drawn from PC to PT

Answer 15

Long Chord (C)

Question 16

Radius of the circular curve

Answer 16

Radius

Question 17

Distance measured from the vertex to the midpoint of the curve

Answer 17

External Distance (E)

Question 18

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

Answer 18

Middle Ordinate(M)

Question 19

The point of the common tangent where the two curves join

Answer 19

Point of Compound Curvature (PCC)

Question 20

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.

Answer 20

Compound Curves

Question 21

Subtended angle of the first curve

Answer 21

Central Angle of the First Simple Curve (I1)

Question 22

Subtended angle of the second curve

Answer 22

Central Angle of the Second Simple Curve (I2)

Question 23

Distance from PC to PI

Answer 23

Back Tangent (T1)

Question 24

Distance from PT to PI

Answer 24

Forward Tangent (T2)

Question 25

Point of Intersection of the first curve on a compound curve

Answer 25

Vertex of the First Simple Curve (A)

Question 26

Point of Intersection of the second curve on a compound curve

Answer 26

Vertex of the Second Simple Curve (B)

Question 27

Tangent distance of the first simple curve

Answer 27

t1

Question 28

Tangent distance of the second simple curve

Answer 28

t2

Question 29

Straight line from A to B of a compound curve

Answer 29

Common Tangent (AB)