Gunter's chain is .......... m long
Correct Answer:
D. 20.12
📜 Core Concept: Gunter's Chain
The Gunter's chain (also known as the Surveyor's chain) is a historic measuring device used in surveying. Its standard length is defined in imperial units as 66 feet. This specific length was chosen for its convenient relationship to other imperial land measurement units.
🔬 Calculation: Converting Feet to Meters
To find the length of the Gunter's chain in meters, we need to convert its standard length from feet to meters. The standard conversion factor is:
1 foot = 0.3048 meters
Using this, the calculation is:
Length in meters = 66 feet × 0.3048 m/foot
Length in meters = 20.1168 m
This value is rounded to 20.12 meters for practical purposes.
📊 Comparison of Surveying Chains
Here’s how the Gunter's chain compares to other common types of surveying chains:
| Chain Type | Standard Length (Imperial) | Standard Length (Metric) | Number of Links |
|---|---|---|---|
| Gunter's Chain | 66 ft | 20.12 m | 100 |
| Engineer's Chain | 100 ft | 30.48 m | 100 |
| Revenue Chain | 33 ft | 10.06 m | 16 |
| Metric Chain | N/A | 20 m or 30 m | 100 or 150 |