Chemical Environmental Engineering

A. Mufflers (silencers)
B. Acoustic absorbent
C. Lagging of noisy duct
D. None of these

A. 0.5
B. 1
C. 3.5
D. 9.05

A. Coagulation
B. Sterilisation
C. Disinfection
D. Sedimentation

A. Acidic
B. Neutral
C. Alkaline
D. Highly acidic

A. 5
B. 50
C. 500
D. 5000

A. 22
B. 42
C. 332
D. 1050

A. Bag filter
B. Scrubber
C. Electrostatic precipitator
D. Cyclone separator

A. 25
B. 50
C. 70
D. 85

A. SPM
B. Thermal pollution
C. Radioactive rays
D. Noise pollution

A. Roentgen
B. Decibel
C. Hertz
D. None of these