Hazardous/polluting chemical industries should have an ‘exclusion zone’ with a green belt and general public access prohibited around it, covering a radius of _____________ metres?

Related Mcqs:

1. Chemical potential (an intensive property) of a substance is a force that drives the chemical system to equilibrium and is equal to its partial molar properties. The ratio of chemical potential to free energy of a pure substance at constant temperature and pressure is________________?

   A. 0
   B. 1
   C. ∞
   D. None of these

2. At equilibrium condition, the chemical potential of a material in different phases in contact with each other is equal. The chemical potential for a real gas (μ) is given by (where, μ = standard chemical potential at unit fugacity (f° = 1 atm.) and the gas behaves ideally.) ?

   A. μ° + RT ln f
   B. μ°+ R ln f
   C. μ° + T ln f
   D. μ° + R/T ln f

3. In the context of the chemical process industries, the term BOD is normally associated with the_____________________?

   A. Characterisation of solid wastes
   B. Organic concentration in gaseous effluents
   C. Characterisation of liquid effluents
   D. Characterisation of boiler feed water

4. Which of the following radioactive wastes emits all α, β & γ rays and hence is the most hazardous of all radioactive emitters ?

   A. I-131
   B. Sr-90
   C. Au-198
   D. Ra-226

5. Green 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 ?

   A. CO2
   B. H2
   C. SO3
   D. N2

6. Noise emitted by a ventilation fan at a distance of 3 metres is about _____________ decibels?

   A. 85
   B. 105
   C. 125
   D. 145

7. Noise level heard at a distance of about 100 metres from a jet engine with after burner is about _____________ decibels?

   A. 120
   B. 140
   C. 170
   D. 200

8. Waste/polluted water discharged from electroplating, blast furnace and coal mining industries contain mainly _____________ substances?

   A. Radioactive
   B. Organic
   C. Inorganic
   D. None of these

9. Chemical engineering thermodynamics is concerned with the ____________ in/of chemical processes?

   A. Reaction mechanism
   B. Calculation of rates
   C. Energy transformation from one form to another
   D. None of these

10. Sound produced by an automobile horn heard at a distance of 1.5 metres corresponds to about ______________ decibels?

    A. 90
    B. 120
    C. 150
    D. 180