• HOME
  • QUIZ
  • CONTACT US
EXAMIANS
  • COMPUTER
  • CURRENT AFFAIRS
  • ENGINEERING
    • Chemical Engineering
    • Civil Engineering
    • Computer Engineering
    • Electrical Engineering
    • Mechanical Engineering
  • ENGLISH GRAMMAR
  • GK
  • GUJARATI MCQ

Waste Water Engineering

Waste Water Engineering
Fresh sewage may become stale in

One hour
Three to four hours
Six hours
Two to three hours

ANSWER DOWNLOAD EXAMIANS APP

Waste Water Engineering
House connections to the laterals is generally made by

Cast iron
Glazed stonewares
R.C.C.
P.C.C.

ANSWER DOWNLOAD EXAMIANS APP

Waste Water Engineering
If the diameter of a sewer is 100 mm, the gradient required for generating self cleansing velocity is

None of these
1 in 120
1 in 100
1 in 60

ANSWER DOWNLOAD EXAMIANS APP

Waste Water Engineering
To test chemical oxygen demand (C.O.D.) of sewage, organic matter is oxidised by potassium dichromate in the presence of

Citric acid
Nitric acid
Hydrochloric acid
Sulphuric acid

ANSWER DOWNLOAD EXAMIANS APP

Waste Water Engineering
In detritus tanks,

Flow velocity is kept 0.09 m/sec
Organic and inorganic materials are separated
Detention period is kept 3 to 4 minutes
All listed here

ANSWER DOWNLOAD EXAMIANS APP

Waste Water Engineering
For efficient working of a sewer, it must be ensured that

A maximum velocity of 0.90 m/sec, is maintained at its maximum flow
Minimum velocity of 0.45 m/sec, is maintained at its minimum flow
Neither (A) nor (B)
Both (A) and (B)

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Waste Water Engineering

DOWNLOAD APP

  • APPLE
    from app store
  • ANDROID
    from play store

SEARCH

LOGIN HERE


  • GOOGLE

FIND US

  • 1.70K
    FOLLOW US
  • EXAMIANSSTUDY FOR YOUR DREAMS.
  • SUPPORT :SUPPORT EMAIL ACCOUNT : examians@yahoo.com

OTHER WEBSITES

  • GUJARATI MCQ
  • ACCOUNTIANS

QUICK LINKS

  • HOME
  • QUIZ
  • PRIVACY POLICY
  • DISCLAIMER
  • TERMS & CONDITIONS
  • CONTACT US
↑