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Q: How many links are recommended in a 20 m Metric chain as per IS: 1492-1970?
  • A. 75
  • B. 100
  • C. 50
  • D. 25
Correct Answer: Option B - Following types of chains are used in the survey work:– (a) Metric chain:– (i) 20 m – 100 links (ii) 30 m – 150 links (b) Gunter's chain:– 66 feet –100 links. (c) Engineer's chain:– 100 feet–100links (d) Revenue chain:– 33 feet–16 link.
B. Following types of chains are used in the survey work:– (a) Metric chain:– (i) 20 m – 100 links (ii) 30 m – 150 links (b) Gunter's chain:– 66 feet –100 links. (c) Engineer's chain:– 100 feet–100links (d) Revenue chain:– 33 feet–16 link.

Explanations:

Following types of chains are used in the survey work:– (a) Metric chain:– (i) 20 m – 100 links (ii) 30 m – 150 links (b) Gunter's chain:– 66 feet –100 links. (c) Engineer's chain:– 100 feet–100links (d) Revenue chain:– 33 feet–16 link.