Smog is (A) Nothing but black smoke (B) A combination of smoke and fog (C) A liquid particle resulting from vapor condensation (D) A solid particle e.g. fly-ash

Smog is
(A) Nothing but black smoke
(B) A combination of smoke and fog
(C) A liquid particle resulting from vapor condensation
(D) A solid particle e.g. fly-ash
by

1 Answer

Answer :

(B) A combination of smoke and fog
by

Related questions

Sooty and sulphurous smog formed due to combustion of fossil fuels particularly in winter, continues throughout the day and night. When the moist atmospheric air's water vapor condenses on the solid particles of smoke thereby forming smog (smoke + fog), it causes (A) Poor visibility due to sky darkening (B) Irritation in eyes (C) Respiratory trouble (D) All (A), (B) and (C)

Description : Sooty and sulphurous smog formed due to combustion of fossil fuels particularly in winter, continues throughout the day and night. When the moist atmospheric air's water vapor condenses on the solid particles of smoke thereby ... B) Irritation in eyes (C) Respiratory trouble (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

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For the non-catalytic reaction of particles with surrounding fluid, the time needed to achieve the same fractional conversion for particles of different but unchanging sizes is proportional to the square of particle diameter, when the __________ is the controlling resistance. (A) Film diffusion (B) Diffusion through ash layer (C) Chemical reaction (D) Either (A), (B) or (C)

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Last Answer : (D) All 'a', 'b' & 'c'

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The loss of water in the form of vapor from the surface of plant leaves is referred to as: a. Transpiration b. Respiration c. Oxidation d. Condensation

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Last Answer : (B) Solid dispersed in gas

Smog and Smoke

Description : Smog and Smoke

Last Answer : Smog - mixture of smoke and fog Smoke - visible vapor given off by burning material;

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Last Answer : (D) All (A), (B) and (C)

For the non catalytic reaction of particles with surrounding fluid, the same needed to achieve the same fractional conversion for particles of different unchanging sizes is proportional to the particle diameter, when the __________ is the controlling resistance. (A) Film diffusion (B) Diffusion through ash layer (C) Chemical reaction (D) Either (A), (B) or (C)

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Last Answer : (B) Ash

Which of the following is the most important deterrents to an extended use of pulverised coal in boiler firing? (A) Ash disposal problem (B) Excessive fly ash discharge from the stack (C) Higher power consumption in its transportation (D) Erosion of induced draft fan blades

Description : Which of the following is the most important deterrents to an extended use of pulverised coal in boiler firing? (A) Ash disposal problem (B) Excessive fly ash discharge from the stack (C) Higher power consumption in its transportation (D) Erosion of induced draft fan blades

Last Answer : (A) Ash disposal problem

Which of the following is the most important deterrents to an extended use of pulverised coal in boiler firing? (A) Ash disposal problem (B) Excessive fly-ash discharge from the stack (C) High power consumption in its transportation (D) Erosion of induced draft fan blades

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Last Answer : (A) Ash disposal problem