Q261
Open questionWhich of the following radioactive wastes emits all α, β & γ rays and hence is the most hazardous of all radioactive emitters?
Select an option to see the answer and solution.
Chemical Engineering · all questionsEnvironmental Engineering
Environmental Engineering
practice.
Practice every MCQ with options. Use Show answers when you want the correct option and solution.
307
Questions
14/16
Page
Pick an option on a question to see the right answer and solution.
Q262
Open questionThe progressive warming up of the earth's surface is mainly due to the
Select an option to see the answer and solution.
Q263
Open questionThe ratio of oxygen available to the oxygen required for stabilisation of sewage is called the
Select an option to see the answer and solution.
Q264
Open questionReinglemann chart is used for the measurement of the
Select an option to see the answer and solution.
Q265
Open questionAerosols present in atmospheric air may be
Select an option to see the answer and solution.
Q266
Open questionPick out the wrong statement.
Select an option to see the answer and solution.
Q267
Open questionFresh domestic sewage is __________ in color.
Select an option to see the answer and solution.
Q268
Open questionMaximum permissible residual chlorine in treated water should be __________ mg/litre.
Select an option to see the answer and solution.
Q269
Open questionCarbonaceous particles having size less than 1 μm are called
Select an option to see the answer and solution.
Q270
Open questionPick out the wrong statement.
Select an option to see the answer and solution.
Q271
Open questionSmog is
Select an option to see the answer and solution.
Q272
Open questionSmoke is produced due to
Select an option to see the answer and solution.
Q273
Open questionWhich of the following air pollutants is not toxic to vegetation i.e., doesn't cause vegetation damage?
Select an option to see the answer and solution.
Q274
Open questionWhat are the methods of treatment & disposal of radioactive wastes?
Select an option to see the answer and solution.
Q275
Open questionWorkers working in __________ industry are most prone to white lung cancer.
Select an option to see the answer and solution.
Q276
Open questionInhalation of lead compounds present in automobile exhaust (using leaded petrol) causes
Select an option to see the answer and solution.
Q277
Open questionThe average thickness of ozone layer in stratosphere is about __________ dobson unit (DU).
Select an option to see the answer and solution.
Q278
Open questionFor existence of aquatic life in water, the dissolved oxygen content in it, should not be less than __________ ppm.
Select an option to see the answer and solution.
Q279
Open question__________ can not control the noise pollution.
Select an option to see the answer and solution.
Q280
Open questionGreen house gases blanket/block the infrared radiation from earth's surface to the atmosphere leading to its progressive warming up. Which of the following gases does not exhibit green house effect?
Select an option to see the answer and solution.