Environmental Engineering in CE Ionisation potential employed in the industrial electrostatic precipitator is of the order of 230 V DC 30 to 70 kV DC 230 V AC 30 to 70 kV AC 230 V DC 30 to 70 kV DC 230 V AC 30 to 70 kV AC 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. 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 Low amount of excess combustion air ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise level in a quiet private business office is about __________ decibels. 50 85 25 70 50 85 25 70 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Carbonaceous particles having size less than 1 μm are called Aerosols Aggregates Grit Smoke Aerosols Aggregates Grit Smoke ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Replenishment of dissolved oxygen in water stream polluted with industrial waste occurs by Both A & B Photosynthetic action of algae Neither A nor B Natural aeration of water stream Both A & B Photosynthetic action of algae Neither A nor B Natural aeration of water stream ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The density of the gases (present in air) decreases with increasing altitude to such an extent, that about 70% of the mass of atmospheric air is found in the lower 5 km. of the atmosphere. This lower region of atmosphere is called the Ionosphere Troposphere None of these Stratosphere Ionosphere Troposphere None of these Stratosphere ANSWER DOWNLOAD EXAMIANS APP