Environmental Engineering in CE TLV of ammonia, nitrogen dioxide and phenol vapor in air is __________ ppm. 5 100 2000 1000 5 100 2000 1000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Threshold limit value (TLV) means maximum permissible/acceptable concentration. TLV of phosgene in air is about __________ ppm (parts per million). 1.2 4.8 0.2 0.002 1.2 4.8 0.2 0.002 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In a sedimentation tank, the detention period for water ranges from __________ hours. 2 to 4 16 to 20 8 to 12 24 to 32 2 to 4 16 to 20 8 to 12 24 to 32 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE White smoke coming out of the chimney of a furnace indicates the use of Very high excess air Low excess air Gaseous fuel in the furnace Liquid fuel in the furnace Very high excess air Low excess air Gaseous fuel in the furnace Liquid fuel in the furnace ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The widest explosive limit is of __________ , thereby making it the most explosive gas. Carbon monoxide Hydrogen Acetylene Petrol vapor Carbon monoxide Hydrogen Acetylene Petrol vapor ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Pollution by particulate matter emission in the atmosphere does not take place during metal Polishing Machining Grinding Cutting Polishing Machining Grinding Cutting ANSWER DOWNLOAD EXAMIANS APP
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