Environment & Ecology · Environmental Engineering
What will be the BOD5 for a wastewater sample when 21 ml of the sample is diluted to 300 ml in a BOD bottle to determine dissolved oxygen? [Given: Initial DO1 = 10 mg/l; Five days later DO5 = 5 mg/l]
Verified Solution4 OptionsUpdated: October 2026👁️1 View
Share:
- 1~5 mg/l
- 2~25 mg/l
- 3~71.4 mg/l✓
- 4~75 mg/l
Correct answer
~71.4 mg/l
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
👥
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Online Test Series
Start Free Mock Test →Preparing for Environment & Ecology?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Chapter Practice
Practice Environmental Engineering MCQs →Want more practice questions on Environmental Engineering?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Environment & Ecology · Environmental Engineering