# Sewage treatment units are normally designed for______________? with Answer - Civil Engineering Mcqs | TestPrep

> Solved MCQ: Sewage treatment units are normally designed for______________? Correct Answer: B. 15-20 years. Verified answer explanation for FPSC, PPSC, MDCAT, NTS, and CSS competitive exam preparation.

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# Sewage treatment units are normally designed for______________?

Direct Answer & Quick Reference

The correct option is **B. 15-20 years**.

A. 5-10 years

B. 15-20 yearsCorrect Answer

C. 30-40 years

D. 40-50 years

Verified Key: B. 15-20 years
Solved by 2,484+ students

Verified against official examination board answer keys and standard curriculum textbooks.

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