Environmental Engineering in CE Black smoke coming out of the chimney of a furnace is an indication of the use of __________ in the furnace. Pulverised coal as fuel Low amount of excess combustion air Hydrocarbon fuel Large quantity of excess combustion air Pulverised coal as fuel Low amount of excess combustion air Hydrocarbon fuel Large quantity of excess combustion air ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following radioactive wastes emits all α, β & γ rays and hence is the most hazardous of all radioactive emitters? Ra-226 I-131 Au-198 Sr-90 Ra-226 I-131 Au-198 Sr-90 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Phenolic water generated in coke ovens & by-product plant of a steel plant are disposed off by Filtration and recycling for cooling coke oven gas None of these Quenching of hot coke Discharging in the river stream Filtration and recycling for cooling coke oven gas None of these Quenching of hot coke Discharging in the river stream ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not a source of ozone emission in the atmosphere? Refrigerators Dermatological photo-therapy equipments High voltage electrical equipments Xerox machines Refrigerators Dermatological photo-therapy equipments High voltage electrical equipments Xerox machines ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE During which of the following operating conditions of an automobile, carbon monoxide content in the exhaust gas is maximum? Deaccelaration Cruising Acceleration Idle running Deaccelaration Cruising Acceleration Idle running ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Solid content in most of the domestic sewage is about __________ percent. 0.001 10 5 0.1 0.001 10 5 0.1 ANSWER DOWNLOAD EXAMIANS APP
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