While designing a rectangular septic tank for 50 users considering 0.08 cu. m. per user and depth of water as 1.2 m along, what would be the length of the tank if the length of the tank is considered as 4 times the width of the tank?

This question was previously asked in
OSSC JE Civil Mains (Re-Exam) Official Paper: (Held On: 3rd Sept 2023)
View all OSSC JE Papers >
  1. 0.83 m
  2. 1.66 m
  3. 3.65 m
  4. 4.15 m

Answer (Detailed Solution Below)

Option 3 : 3.65 m
Free
OSSC JE Civil Geo-technical Engineering Mock Test
0.7 K Users
20 Questions 40 Marks 36 Mins

Detailed Solution

Download Solution PDF

Total volume of septic tank = volume required for 1 user × number of people

= 0.08 × 50  = 4 cubic meter

Volume = length × breadth × height

4 = L × B × H

4 = 4B × B × 1.2 (given that L = 4B)

B = 0.912 m

L = 4 × B = 4 × 0.912  = 3.65 m

Latest OSSC JE Updates

Last updated on Jun 4, 2025

-> OSSC JE Preliminary Fiinal Answer Key 2025 has been released. Applicants can raise objections in OSSC JE answer key till 06 June 2025.

-> OSSC JE prelim Exam 2025 was held on 18th May 2025.(Advt. No. 1233/OSSC ).

-> The OSSC JE 2024 Notification was released for 759 vacancies through OSSC CTSRE 2024.

-> The selection is based on the written test. This is an excellent opportunity for candidates who want to get a job in the Engineering sector in the state of Odisha.

-> Candidates must refer to the OSSC JE Previous Year Papers to understand the type of questions in the examination. 

Get Free Access Now
Hot Links: teen patti noble all teen patti teen patti gold download teen patti tiger