Define the different reference meridians that can be used for the direction ofa line.

Question

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Answer 1

Textbook Question

Chapter 7, Problem 7.1P

Define the different reference meridians that can be used for the direction ofa line.

Expert Solution & Answer

To determine

Define the different reference meridians that can be used

Answer to Problem 7.1P

True or Geodetic meridian

Magnetic meridian

Astronomic meridian

Grid meridian

Assumed meridian

Explanation of Solution

Given information:

Different reference meridians

Meridian is a reference with respect to which the bearing of a line is measured to represent the direction of the line.

True or Geodetic meridian:

True meridian is the imaginary line passing through the true North pole and true South pole at the point of the observer. True meridian is constant and does not change with time.

Magnetic meridian:

Magnetic meridian is the imaginary line passing through the magnetic North pole and magnetic South pole due to the magnetic. Magnetic meridian is not constant and it may change with time.

Astronomic meridian:

Astronomic meridian is the bigger circle passing through the North celestial poles and South celestial poles, the zenith and the nadir of the observer.

Grid meridian:

Grid meridian is formed when new lines are drawn parallel to the geodetic meridian in which zone we are preparing the local map.

Assumed meridian:

Assumed meridian is a meridian when the direction is assumed to the constant position of the zone.

Conclusion:

The meridians are very useful in determining the bearings of the line.

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04:31

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Consider the three cases shown below, in which a soil column is subjected to different water heads (similar set-upDarby’s experiment in the reader). Using the tables provided, establish the pressure, elevation, and total heads ateach location, considering that the datum is:a) at the headwater, andb) at the tailwater.c) What was the effect of assuming a different datum on the i) pressure, ii) elevation, and iii) total heads?d) In the schematic for each case, draw an arrow indicating the direction of water flow inside the soil.e) What is the hydraulic gradient across the soil in each case?f) If the soil permeability and cross-sectional area of the cylinder remains constant across the different cases, whichone leads to the largest flow rate q? Which one has the lowest flow rate?g) What assumptions were necessary for you to answer these questions?

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Answer 2

Textbook Question

Chapter 7, Problem 7.1P

Define the different reference meridians that can be used for the direction ofa line.

Expert Solution & Answer

To determine

Define the different reference meridians that can be used

Answer to Problem 7.1P

True or Geodetic meridian

Magnetic meridian

Astronomic meridian

Grid meridian

Assumed meridian

Explanation of Solution

Given information:

Different reference meridians

Meridian is a reference with respect to which the bearing of a line is measured to represent the direction of the line.

True or Geodetic meridian:

True meridian is the imaginary line passing through the true North pole and true South pole at the point of the observer. True meridian is constant and does not change with time.

Magnetic meridian:

Magnetic meridian is the imaginary line passing through the magnetic North pole and magnetic South pole due to the magnetic. Magnetic meridian is not constant and it may change with time.

Astronomic meridian:

Astronomic meridian is the bigger circle passing through the North celestial poles and South celestial poles, the zenith and the nadir of the observer.

Grid meridian:

Grid meridian is formed when new lines are drawn parallel to the geodetic meridian in which zone we are preparing the local map.

Assumed meridian:

Assumed meridian is a meridian when the direction is assumed to the constant position of the zone.

Conclusion:

The meridians are very useful in determining the bearings of the line.

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04:31

Answer 3

Textbook Question

Chapter 7, Problem 7.1P

Define the different reference meridians that can be used for the direction ofa line.

Expert Solution & Answer

To determine

Define the different reference meridians that can be used

Answer to Problem 7.1P

True or Geodetic meridian

Magnetic meridian

Astronomic meridian

Grid meridian

Assumed meridian

Explanation of Solution

Given information:

Different reference meridians

Meridian is a reference with respect to which the bearing of a line is measured to represent the direction of the line.

True or Geodetic meridian:

True meridian is the imaginary line passing through the true North pole and true South pole at the point of the observer. True meridian is constant and does not change with time.

Magnetic meridian:

Magnetic meridian is the imaginary line passing through the magnetic North pole and magnetic South pole due to the magnetic. Magnetic meridian is not constant and it may change with time.

Astronomic meridian:

Astronomic meridian is the bigger circle passing through the North celestial poles and South celestial poles, the zenith and the nadir of the observer.

Grid meridian:

Grid meridian is formed when new lines are drawn parallel to the geodetic meridian in which zone we are preparing the local map.

Assumed meridian:

Assumed meridian is a meridian when the direction is assumed to the constant position of the zone.

Conclusion:

The meridians are very useful in determining the bearings of the line.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

04:31

Answer 4

Textbook Question

Chapter 7, Problem 7.1P

Define the different reference meridians that can be used for the direction ofa line.

Expert Solution & Answer

To determine

Define the different reference meridians that can be used

Answer to Problem 7.1P

True or Geodetic meridian

Magnetic meridian

Astronomic meridian

Grid meridian

Assumed meridian

Explanation of Solution

Given information:

Different reference meridians

Meridian is a reference with respect to which the bearing of a line is measured to represent the direction of the line.

True or Geodetic meridian:

True meridian is the imaginary line passing through the true North pole and true South pole at the point of the observer. True meridian is constant and does not change with time.

Magnetic meridian:

Magnetic meridian is the imaginary line passing through the magnetic North pole and magnetic South pole due to the magnetic. Magnetic meridian is not constant and it may change with time.

Astronomic meridian:

Astronomic meridian is the bigger circle passing through the North celestial poles and South celestial poles, the zenith and the nadir of the observer.

Grid meridian:

Grid meridian is formed when new lines are drawn parallel to the geodetic meridian in which zone we are preparing the local map.

Assumed meridian:

Assumed meridian is a meridian when the direction is assumed to the constant position of the zone.

Conclusion:

The meridians are very useful in determining the bearings of the line.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

04:31

Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

To determine

Define the different reference meridians that can be used

Answer to Problem 7.1P

True or Geodetic meridian

Magnetic meridian

Astronomic meridian

Grid meridian

Assumed meridian

Explanation of Solution

Given information:

Different reference meridians

Meridian is a reference with respect to which the bearing of a line is measured to represent the direction of the line.

True or Geodetic meridian:

True meridian is the imaginary line passing through the true North pole and true South pole at the point of the observer. True meridian is constant and does not change with time.

Magnetic meridian:

Magnetic meridian is the imaginary line passing through the magnetic North pole and magnetic South pole due to the magnetic. Magnetic meridian is not constant and it may change with time.

Astronomic meridian:

Astronomic meridian is the bigger circle passing through the North celestial poles and South celestial poles, the zenith and the nadir of the observer.

Grid meridian:

Grid meridian is formed when new lines are drawn parallel to the geodetic meridian in which zone we are preparing the local map.

Assumed meridian:

Assumed meridian is a meridian when the direction is assumed to the constant position of the zone.

Conclusion:

The meridians are very useful in determining the bearings of the line.

Answer 8

Expert Solution & Answer

To determine

Define the different reference meridians that can be used

Answer to Problem 7.1P

True or Geodetic meridian

Magnetic meridian

Astronomic meridian

Grid meridian

Assumed meridian

Explanation of Solution

Given information:

Different reference meridians

Meridian is a reference with respect to which the bearing of a line is measured to represent the direction of the line.

True or Geodetic meridian:

True meridian is the imaginary line passing through the true North pole and true South pole at the point of the observer. True meridian is constant and does not change with time.

Magnetic meridian:

Magnetic meridian is the imaginary line passing through the magnetic North pole and magnetic South pole due to the magnetic. Magnetic meridian is not constant and it may change with time.

Astronomic meridian:

Astronomic meridian is the bigger circle passing through the North celestial poles and South celestial poles, the zenith and the nadir of the observer.

Grid meridian:

Grid meridian is formed when new lines are drawn parallel to the geodetic meridian in which zone we are preparing the local map.

Assumed meridian:

Assumed meridian is a meridian when the direction is assumed to the constant position of the zone.

Conclusion:

The meridians are very useful in determining the bearings of the line.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

To determine

Define the different reference meridians that can be used

Answer 12

Answer to Problem 7.1P

True or Geodetic meridian

Magnetic meridian

Astronomic meridian

Grid meridian

Assumed meridian

Answer 13

Explanation of Solution

Given information:

Different reference meridians

Meridian is a reference with respect to which the bearing of a line is measured to represent the direction of the line.

True or Geodetic meridian:

True meridian is the imaginary line passing through the true North pole and true South pole at the point of the observer. True meridian is constant and does not change with time.

Magnetic meridian:

Magnetic meridian is the imaginary line passing through the magnetic North pole and magnetic South pole due to the magnetic. Magnetic meridian is not constant and it may change with time.

Astronomic meridian:

Astronomic meridian is the bigger circle passing through the North celestial poles and South celestial poles, the zenith and the nadir of the observer.

Grid meridian:

Grid meridian is formed when new lines are drawn parallel to the geodetic meridian in which zone we are preparing the local map.

Assumed meridian:

Assumed meridian is a meridian when the direction is assumed to the constant position of the zone.

Conclusion:

The meridians are very useful in determining the bearings of the line.