Question

In general from the data on galvanised steel, it has a service life of _____ in soil.

(a) 2 days

(b) 120 months

(c) 10 years

(d) 120 years

This question was posed to me in an interview for internship.

Asked question is from Reinforced Earth topic in division Reinforced Earth and Geotextiles of Geotechnical Engineering II

Answer 1

The correct choice is (d) 120 years

To explain I would say: Since the galvanised steel is resistant to corrosion, from the data available on the rate of corrosion of galvanised steel it indicates that, elements if this material are to have a service life of 120 years in soil.