Conversions, Formulae, Classifications for Surveyors Flashcards

To memorize frequently used formulae, memorize conversions, basic survey measurements, and classifications.

1
Q

Conversion from Foot to Meter

A

1 foot = 0.3048 Meters

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2
Q

Conversion from Meter to Foot

A

1 meter= 3.28084 feet

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3
Q

Conversion from degrees Fahrenheit to degrees Celsius

A

°C=5/9(°F-32)

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4
Q

Conversion from degrees Celsius to degrees Fahrenheit

A

°F = °C×(9/5)+32

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5
Q

Dimensions of a square acre

A

208.71x208.71

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6
Q

Square footage of an acre

A

43560 square feet.

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7
Q

Old style USQS Quadrangle map

A

1:24,000 scale on 7.5 minute map

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8
Q

What is the length of a “Gunter’s Chain” ?

A

Edmund Gunter 100 links=66’, each link 7.92’ inches

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9
Q

What is the length of an Engineer’s Chain?

A

100’ , 1’ link.

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10
Q

Who was Benjamin Banneker?

A

Not inventor of chain, African American Surveyor from Maryland who helped to survey Washington DC in 1791. 40 markers placed, some still remain.

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11
Q

Conversion from Vara (Spanish territory measurement) to feet

A

1 vara= 2.7500005511811 feet, or divide Varas by 0.36

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12
Q

Conversion from feet to Vara (Spanish territory measurement)

A

1 foot= 0.36 Varas, or multiply foot by 0.36

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13
Q

NGS standard, 3rd order Class II

A

1:10,000

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14
Q

Traditional standard, Order AA

A

1 part in 100,000,000

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15
Q

Traditional standard, Order A

A

1 part in 10,000,000

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16
Q

Traditional standard, Order B, first order

A

1 part in 100,000 angles:(2”√N¹)

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17
Q

Traditional standard, Order B, second order, Class I

A

1 part in 50,000 angles:(3”√N)

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18
Q

Traditional standard, Order B

A

1 part in 1,000,000

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19
Q

Traditional standard, Order B, second order, Class II

A

1 part in 20,000 angles:(5”√N)

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20
Q

Traditional standard, Order B, third order, Class I

A

1 part in 10,000 angles:(10”√N)

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21
Q

Traditional standard, Order B, third order, Class II

A

1 part in 5,000 angles:(20”√N)

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22
Q

Engineering Construction (Fourth Order)

A

1 part in 2,500 or 1:2,500 angles:(60”√N)

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23
Q

1 degree curve has an arc length of?

A

100’ arc length and a radius of 5729.58

24
Q

1 minute angle at 100’ is what distance

A

.029 (or .03’) per 100’

25
Q

1 degree angle at 100’ is what distance

A

1.745’ (or 1’-9”) per 100’

26
Q

20 seconds angle at 100’ is what distance

A

1/8 or .01’ per 100’

27
Q

1 mile= how many feet

A

5280

28
Q

1 mile= how many yards

A

1760

29
Q

What is an adit

A

a (mining) tunnel for mine drainage, ventilation or transportation)

30
Q

What is reversion, and regarding what

A

term used to define process of of adjusting a spirit level by splitting the error and adjusting ½ the error until the bubble does not change position

31
Q

Total station is less accurate than steel tape when

A

the measured distance is less than 100’

32
Q

area of a circle formula

A

A = π(3.14)r²

33
Q

length of an arc formula

A

Arc Length = θ * r where θ (theta) where angle is radians, is angle if in degrees (πrθ)/180 (look to calculator for degrees min sec) (another version is L=θdπ/360°)

34
Q

Volume of Cylinder formula

A

V = πr²h (height)

35
Q

(n)⁰

A

Whatever the number, if raised to zero power, is =1

36
Q

polygon formula

A

Sum of interior angles=(n-2)180°

37
Q

Weight of a gallon of fresh water

A

8.33lbs

38
Q

Weight of a gallon of salt water

A

8.54lbs

39
Q

Formula converting Pound (lb) to Kilogram (Kg)

A

1lb=0.453592Kg

40
Q

Formula converting Kilogram (Kg) to Pound (lb)

A

1Kg=2.20462lbs

41
Q

1 meter is how many inches

A

39.37” exactly

42
Q

1 meter in U.S. feet

A

3.2808333 U.S. feet also 39.37”

43
Q

How many rods is a Gunter’s Chain

A

4 rods (4 poles) 66ft

44
Q

1 international foot in meters

A

.3048 meters

45
Q

How many Gunter’s chains in a mile

A

80(Gunter’s Chain 66’)

46
Q

How many square feet in 10chains²?

A

435600 feet² (10 acres)

47
Q

Formula for Circumference of a circle

A

C=πd

48
Q

Area of a trapezoid

A

A=1/2h(a+b), where h is height, a and b are the horizontal sides

49
Q

Area of sector of a circle (fractional part of circle in relationship to radial lines)

A

A = π(3.14)r² parts of this are arc angle/360°

50
Q

Area of a segment of a circle (any part of circle not just along radial lines)

A

(θ / 360°) × πr2 - (1/2) r2 sin θ (OR) r2 [πθ/360° - sin θ/2], if ‘θ’ is in degrees

51
Q

Area of a triangle (not necessarily right triangle)

A

A=1/2bh (where b is base, h is height)

52
Q

Volume of a cube

A

V=lwh (l is length, w is width, h is height)

53
Q

What is a prism in geometry

A

A solid shape that is bound on all sides by plane faces, faces other than top and bottom of a prism are called lateral faces

54
Q

Formula of volume of Right prisms and cylinders

A

V=Ahₚ (the area x height of the prism (or cylinder).

55
Q

Formula of volume of a cone

A

V=(πr²)h/3

56
Q

Formula for volume of a pyramid

A

V=1/3Ah

57
Q

Volume of a sphere

A

V=4/3πr²