Pakistan's best MCQs practice hub — FPSC · PPSC · CSS · NTS · Other Exams
Login

Biochemical Oxygen Demand (BOD5) test of wastewater sample is standardly carried out at a temperature of:

A15°C for 5 days
B20°C for 5 days
C25°C for 3 days
D37°C for 24 hours

Explanation

Standard BOD5 test measures dissolved oxygen consumed by microorganisms incubating at 20°C for 5 days.

Submitted by: mcqstutor Team More Civil Engineering MCQs →

No Comments

Leave a comment

Your email address will not be published. Required fields are marked *