Environmental Engineering In Ce - Study Mode
[#181] Which is the most practical and economical method for removal of suspended solid matter from polluted water?
Correct Answer
(A) Sedimentation
[#182] Which of the following gases is having the widest explosion limit (about 2 to 81% gas in gas-air mixture), rendering it the property of the most explosive gas?
Correct Answer
(B) Acetylene
[#183] The detrimental effect on organism and water quality with temperature rise of aquatic system is the reduction of __________ of water.
Correct Answer
(A) Dissolved oxygen content
[#184] The pH value of oxidised sewage is about
Correct Answer
(C) 7.3
[#185] Industrial workers working in leather tanning & manufacturing units are prone to suffer from
Correct Answer
(B) Skin diseases (e.g. dermatities)