[‚en·jə′nirz ‚chān] (civil engineering) A surveyor's measuring instrument consisting of 1-foot (30.48-centimeter) steel links joined together by rings, 100 feet (30.5 meters) or 50 feet (15.25 meters) long. Also known as chain.
What is the difference between Gunter's chain and engineer's chain?
A Gunter's chain or surveyor's chain consists of 100 links of 66ft long. Each link being 0.66 ft. or 7.92 inches long. It is used for land measurement. Engineer's chain is 100 ft long and consists of 100 links.
How long is an engineer's chain?
Engineer's chain
This chain comes in 100ft length. Its consist of 100 links each link being 1ft long.
What is chain in civil engineering?
The term chain surveying in survey work refers to measurement of distances with the chain or a tape. Amongst different types of land surveying, the chain surveying is one of them. In chain surveying the linear measurements are only made, and no angular measurements are taken in this type of surveying.
What are different types of chains?
Following are the various types of chain in common use:
- Metric chains.
- Steel band or Band chain.
- Gunter's chain or surveyors chain.
- Engineers chain.
- Revenue chain.
What is the strongest type of chain?
Metal type: The strongest metals for chains are gold and platinum. White gold with rhodium plating can have added strength. Sterling silver chains are also pretty strong, but they require more upkeep to prevent tarnish.
What is a chain in land measurement?
A chain (ch) is a unit of length. It measures 66 feet, or 22 yards, or 100 links,[1] or 4 rods (20.1168 m). There are 10 chains in a furlong, and 80 chains in one statute mile.
What is meant by chain surveying?
Chain surveying is the branch of surveying in which only linear measurements are made in the field. This is suitable for the survey of small areas with simple details and an area that is fairly flat. It derives its name from the fact that the principle equipment commonly used is the chain.
How do you use chains in surveying?
Chain Survey Procedures
- Firstly, inspect the area to be surveyed and prepare key plan. ...
- Then, mark stations using suitable means such as fixing ranging poles, driving pegs, and digging and fixing a stone.
- After that, specify the way for passing the main line which should go through the center of the field.
What is the least count of an engineer's chain?
Tallies are provided at every 2m of the chain for quick reading. Every link of this type of chain is 0.2m. The total length of the chain is marked on the brass handle at the ends. American surveyors used this chain of 100m long.
When did Surveyors stop using chains?
LITTLE CHANGE - The instruments used to survey America changed little from the early 1800s well into the twentieth century. An 1813 surveying text notes that, in New England, most work was done with a magnetic compass and a surveyor's chain. The compass, invented in 1511, was in wide use until 1894.
How many types of chain are used in chain surveying?
Explanation: There can be 5 types of chains used for chain surveying. They are the metric chain, Gunter's chain, engineer's chain, revenue chain and steel band or band chain.
Which chain is used in all engineering survey work?
Engineer's chain
It is used in all Engineering surveys. The engineer's chain is also known as the Ramsden's chain. The Ramsden Chain or Engineer's chain was constructed by Jesse Ramsden in 1784.
How many type of chains are there?
17 Different Types of Chains.
What is metric chain?
The chain is a unit of length equal to 66 feet (22 yards). It is subdivided into 100 links or 4 rods. There are 10 chains in a furlong, and 80 chains in one statute mile. In metric terms, it is 20.1168 m long.
What are the four types of surveying?
Branches of surveying are named according to their purpose, e.g., topographic surveying, used to determine relief (see contour), route surveying, mine surveying, construction surveying; or according to the method used, e.g., transit surveying, plane-table surveying, and photogrammetic surveying (securing data by ...
How do you calculate chains?
Procedure
- Calculate C, where C = CD/p.
- Calculate A, where A = Z1 + Z2.
- Calculate S, where S = Z2 – Z1.
- Refer to the adjacent table to find the T value for the calculated S value.
- Chain Length in Pitches, CL = 2C + (A/2) + (T/C)
Why is it called a chain?
The chain was originally called an "acre's breadth", because it was the width of a acre, while a furlong was the length. Edmund Gunter, a clergyman and mathematician, invented a measuring device called a chain. The chain was 66 ft (20 m) long. It was divided by 100 in small metal links.
How many feet is a survey chain?
In 1620 an English mathematician and astronomer named Edmund Gunter described a surveyor's chain with 100 links, measuring 66 feet (22 yards or 4 poles) overall. By this design, one square chain equals 484 square yards, ten square chains equal an acre, and eighty chains equal a mile.
What is Singapore chain?
Singapore Chain — A Singapore is a twisted chain linking pattern that blends the look of a curb chain with that of a rope chain. The flat and curvaceous links of a Singapore are often described as having the look and feel of liquid, even when unraveled.
What is a good thickness for a gold chain?
Thick gold chains for men that are more than 12mm wide are typically intended to be eye-catching and impress, while chains with a width of 1-6mm are more personal and often meant to be rarely seen. The middle range of 6-10mm can be used for either purpose depending on their design.
Why are gold chains so expensive?
Different styles of gold chains (for men and women) take more skill and time to make, so they will cost more. In addition, adding diamonds and gems takes more time and skill as well. Hand-made gold chains will cost more than machine-made gold chains. They're also higher in quality and overall value.
What is the length of one link of an engineer's chain?
Each link is 1 ft in a length. It is used in all Engineering surveys.
What is revenue chain?
Revenue chain: - This chain is mainly used during cadastral survey (The survey in which determination of land boundaries and area takes place is called cadastral or land survey). It is 66 feet long and divided into 16 links. Each link is 2.0625 feet long.
