Relevant Competitive Tests:
The first stage of neutral process of sludge digestion, is__________________?
A. Acid fermentationCorrect Answer
B. Acid regressio
C. Alkaline fermentation
D. None of these
Correct Option: A. Acid fermentation
This question has been verified by the PakPrep community moderation network for competitive examination accuracy.
Subject Overview
Explore thousands of solved past paper MCQs for Civil Engineering Mcqs categorized with explanations.
Browse All Civil Engineering Mcqs MCQs →