Environmental Engineering in CE White smoke coming out of the chimney of a furnace indicates the use of Very high excess air Liquid fuel in the furnace Low excess air Gaseous fuel in the furnace Very high excess air Liquid fuel in the furnace Low excess air Gaseous fuel in the furnace ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Major sources of noise in furnace operation arises from air inspirators, combustion, side wall vibrations and fluctuation in the process heat load. A 50% increase in fuel firing rate may increase the furnace noise level by about __________ decibels. 30 3 70 100 30 3 70 100 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE 5-200 μm size particles are called Powder Colloids or aerosols Smoke Dust Powder Colloids or aerosols Smoke Dust ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Black smoke coming out of the chimney of a furnace is an indication of the use of __________ in the furnace. Low amount of excess combustion air Large quantity of excess combustion air Pulverised coal as fuel Hydrocarbon fuel Low amount of excess combustion air Large quantity of excess combustion air Pulverised coal as fuel Hydrocarbon fuel ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE When the concentration of SO₂ in air is greater than __________ ppm, it gives a pungent smell. 1 0.1 0.01 4 1 0.1 0.01 4 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following fine dust removal equipments is the most efficient? Cyclone separator Bag filter Scrubber Electrostatic precipitator Cyclone separator Bag filter Scrubber Electrostatic precipitator ANSWER DOWNLOAD EXAMIANS APP
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