Elementary Surveying: An Introduction To Geomatics (15th Edition)
Elementary Surveying: An Introduction To Geomatics (15th Edition)
15th Edition
ISBN: 9780134604657
Author: Charles D. Ghilani
Publisher: PEARSON
bartleby

Concept explainers

Textbook Question
Book Icon
Chapter 7, Problem 7.1P

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

Expert Solution & Answer
Check Mark
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.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
04:31
Students have asked these similar questions
Q1) Determine the member end forces of the frames shown by utilizing structural symmetry and anti-symm.(Derive each member forces and show BMD,SD,AFD)
Determine the symmetric and antisymmetric components of the loadings shown in the figure with respect to the axis of symmetry of the structure.
What are some software tools that have been designed to produce an automatic quantity takeoff in construction?

Additional Engineering Textbook Solutions

Find more solutions based on key concepts
Describe a method that can be used to gather a piece of data such as the users age.

Web Development and Design Foundations with HTML5 (8th Edition)

Solve with F = 350 lb. Prob. 2-4/5

INTERNATIONAL EDITION---Engineering Mechanics: Statics, 14th edition (SI unit)

What are some of the lower-temperature methods of joining?

Degarmo's Materials And Processes In Manufacturing

Knowledge Booster
Background pattern image
Civil Engineering
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Architectural Drafting and Design (MindTap Course...
Civil Engineering
ISBN:9781285165738
Author:Alan Jefferis, David A. Madsen, David P. Madsen
Publisher:Cengage Learning
Text book image
Engineering Fundamentals: An Introduction to Engi...
Civil Engineering
ISBN:9781305084766
Author:Saeed Moaveni
Publisher:Cengage Learning
Text book image
Fundamentals Of Construction Estimating
Civil Engineering
ISBN:9781337399395
Author:Pratt, David J.
Publisher:Cengage,
Text book image
Traffic and Highway Engineering
Civil Engineering
ISBN:9781305156241
Author:Garber, Nicholas J.
Publisher:Cengage Learning
Text book image
Residential Construction Academy: House Wiring (M...
Civil Engineering
ISBN:9781285852225
Author:Gregory W Fletcher
Publisher:Cengage Learning