Nitrogen oxides (NOx) is not produced in the ______________ industry?

Related Mcqs:

1. Tolerable limit of nitrogen oxides in air is _____________ ppm?

   A. 0.1
   B. 1
   C. 5
   D. 25

2. Catalyst used in the ‘catalytic converter’ employed in automobile exhaust line for complete combustion/oxidation of carbon monoxide, nitrogen oxides and hydrocarbons is__________________?

   A. Alumina
   B. Platinum
   C. Vanadium pentoxide
   D. Iron oxide

3. Which of the following is an adsorbent for removal of nitrogen oxides from gas/air ?

   A. Active carbon
   B. Silica gel
   C. Bog iron (iron oxide)
   D. Pulverised limestone

4. A rigid vessel containing three moles of nitrogen gas at 30°C is heated to 250°C. Assume the average capacities of nitrogen to be Cp = 29.1 J/mole.°C and, Cv = 20.8 J/mole.°C. The heat required, neglecting the heat capacity of the vessel, is__________________?

   A. 13728 J
   B. 19206 J
   C. 4576 J
   D. 12712 J

5. In a mixture of benzene vapor and nitrogen gas at a total pressure of 900 mm Hg, if the absolute humidity of benzene is 0.2 kg benzene/kg nitrogen, the partial pressure of benzene in mm Hg is__________________?

   A. 180
   B. 60.3
   C. 720
   D. 200

6. TLV of ammonia, nitrogen dioxide and phenol vapor in air is ______________ ppm ?

   A. 5
   B. 100
   C. 1000
   D. 2000

7. Presence of nitrogen and phosphorous in waste water discharged into lakes and ponds causes_______________?

   A. Foaming
   B. Odour nuisances
   C. Undesirable plant growth
   D. Turbidity

8. Higher concentration of nitrogen dioxide in atmospheric air causes___________________?

   A. Cancer
   B. Bronchitis
   C. Asphyxiation
   D. Corrosion

9. 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

10. What is the number of degrees of freedom for liquid water in equilibrium with a mixture of nitrogen and water vapor ?

    A. 2
    B. 0
    C. 3
    D. 1