Ionisation potential employed in the industrial electrostatic precipitator is of the order of_______________?

Related Mcqs:

1. 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

2. Heat of neutralisation of HCl and NaOH is – 57.46 kJ/Kg mole. The heat of ionisation of water will be _____________ kJ/Kg mole?

   A. 57.46
   B. -57.46
   C. 114.92
   D. -28.73

3. 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

4. Laser welding is widely employed in the __________________ industries ?

   A. Electronic
   B. Structural
   C. Process
   D. Heavy

5. 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

6. Noise produced by cooling fans (employed in air cooled heat exchangers or cooling tower) is mainly caused due to the turbulence created by blade passage through air. It can be reduced by use of a slower fan_________________?

   A. With greater number of blades
   B. Of increased diameter
   C. Both A. & B.
   D. Neither A. nor B.

7. Replenishment of dissolved oxygen in water stream polluted with industrial waste occurs by________________?

   A. Natural aeration of water stream
   B. Photosynthetic action of algae
   C. Both A. & B.
   D. Neither A. nor B.

8. The main industrial source of emission of hydrogen sulphide air pollutant is________________?

   A. Petroleum refineries
   B. Coal based thermal power plants
   C. Pulp and paper plant
   D. Metallurgical roasting & smelting plant

9. Industrial workers working in leather tanning & manufacturing units are prone to suffer from ___________________?

   A. Respiratory ailments (e.g. bronchitis)
   B. Skin diseases (e.g. dermatitis)
   C. Silicosis
   D. Blurred vision

10. Sulphur dioxide present in the industrial chimney exhaust gases causes____________________?

    A. Respiratory & lung disease
    B. Reduction in plant’s productivity owing to acid rain
    C. Corrosion of building materials
    D. All A., B. and C.