Engineering Answers

16.Define the term Hazardous waste?

15.What are the disadvantages of Land fill disposal method?

Paper waste is belongs to..........solid waste

a) Rubbish

b) Garbage

c) Pathological waste

d) none

13.The cut diameter particle gives ......... efficiency in the cyclone separator

a) 25% b) 50% c) 75% d) 100%

12. Define the term photochemical smog?

Define the term population of doubling time period?

10.Which of the following is not a source correction method to control air

pollution?

a) Product storage

c) Equipment modification

b) Process changes

d) Raw material changes

Which of the following is false?

a) In incineration process bacterial growth is fixed on the media

b) In activated sludge systein bacterial growth is suspended as a dispersed floc. c) Microstrainer is used in the advanced waste water treatment process to

remove suspended solids.

d) None of the above

8.Alkalinity of waste water due to the presence of ....... a) Bicarbonates b) Carbonates c) hydroxides of metal ions

d) all of the above

7. Negative lapse rate is called as.....? a) ELR b) INVERSION c) WALR d) DALR