PPSC Chemistry Part V Environmental Chemistry Online Test With Answers

PPSC Chemistry Part V Environmental Chemistry Online Test

Sr. # Questions Answers Choice
1 The range of sound pressure for uncomfortable level is. 80 - 90 dB 100 - 120 dB 130-140 dB All above
2 The unit of sound pressure level is Pascal Decibel Newton Ampere
3 The maximum noise level at which a man can work for 8 hours is. 80 dB 70 dB 90 dB 60 dB
4 In plant noise control, which of the following method is used for reducing noise Plant planning Control at the source Control of radiated noise All above
5 Which of the following pollutants does not a leave a residue. Air pollutant Chemical pollutant Soil pollutant Noise pollutant
6 Which of the following statement represent disadvantages of sanitary landfill Public opposition Uneconomical Health hazard All above
7 Which of the following statement represent advantages of sanitary Landfill Economical method Low initial investment Flexible daily capacity All above
8 Which of the following disposal method is used for agriculture wastes. Dump Landfill Incineration Open burning All above
9 Which of the following disposal method is used or municipal wastes. Compaction Composting Recycling Chemical processing All above
10 Which of the following material is a constituent of crop residue. Cull Fruit vines Bagasse All above
11 The expected specific waste fo petroleum industry is. Asphalt and tars Paper Cloth Fibre
12 The expected specific waste of paper and allied products industry is. Chemicals Paper and fibre residues Links All above
13 The expected specific wastes of textile industry is Cloth residue Fibre residue Dyes All above
14 The expected specific waste of food industry is. Meats Nuts Fats or Oils All above
15 Which of the following techniques are used for minimizing water pollution. Stabilization of ecosystem Recharge of the waste Waste treatment All above
16 Which of the following statement is not correct with respect to radioactive pollutnats. Carcinoma and breast cancer Leukemia Increases biological immune system Somatic and generic disorder
17 Which of the following statement is not related with the effect of thermal pollution. Decrease in BOD Increase in BOD Reduction in DO Change in algal production
18 Which of the following statement is not correct with respect to harmful effects of ground water pollution. It causes lungs cancer It causes jaundice It damages crops It helps to prevent epidermises
19 Ground water is threatened with pollution from which of the following source. Domestic wastes Industrial wastes Agricultural wastes All above
20 Which of the following chemical strong oxidizing agent is used in COD test. KMnO4 H2SO4 CH3COOH K2Cr2O7
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