Related Questions

Very small amount of air pollutants are present in stratosphere also; though most of the atmospheric pollutants are present in the troposphere. Which of the following atmospheric pollutants does not cause the ozone layer depletion in atmosphere at tremendous rate?
A CO
B SO2
C NOx
D CFC (chloro fluoro carbons)
Main pollutants released from iron and steel industry are
A CO, CO2 and SO2
B NO, SO3 and H2S
C CO2, H2S and NO2
D CO2, NO2 and SO3
Crude oil is transported inland from oil field to refineries, mainly by the
A Road tankers
B Rail tankers
C Underground pipelines
D None of these
The refineries Mathura, Digboi and Panipat are set up by
A Indian Oil Corporation Ltd.
B Hindustan Petroleum Corporation Ltd.
C Bharat Petroleum Corporation Ltd.
D Crude Distillation unit of Madras Refineries Ltd.
Which one of the following sequences of the oil refineries of India as they occur from south to north is correct?
A Kochi - Mangalore - Mumbai - Koyali
B Koyali - Mumbai - Mangalore - Kochi
C Kochi - Mumbai - Mangalore - Koyali
D Mangalore - Kochi - Mumbai - Koyali
Which of the following is the most widely used cracking process in oil refineries?
A Dubbs process
B T.C.C. moving bed process
C Fluidised bed catalytic cracking process
D Houdry's fixed bed process
The most widely used crude topping column in refineries is the __________ column.
A Bubble-cap
B Packed bed
C Fluidised bed
D Perforated plate
The coking process normally mostly used in Indian oil refineries is the __________ coking process.
A Delayed
B Flexi
C Fluid
D Contact
Which of the following pollutants is main product of automobile exhaust ?
A CO
B CO2
C NO
D Hydrocarbons
The main pollutant in waste water discharged from a petroleum refinery is oil (both in free and emulsified form). Free oil is removed by
A Biological oxygen pond
B Aerated lagoons
C Trickling filters
D Gravity separator having oil skimming devices

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