Related Questions

Which of the following emissions in the exhaust gas of an I.C. engine causes the formation of photochemical smog?
A Nitrogen oxides
B Hydrocarbons
C Both A & B
D Carbon monoxide
Sooty and sulphurous smog formed due to combustion of fossil fuels particularly in winter, continues throughout the day and night. When the moist atmospheric air's water vapor condenses on the solid particles of smoke thereby forming smog (smoke + fog), it causes
A Poor visibility due to sky darkening
B Irritation in eyes
C Respiratory trouble
D All of the above
নিম্নলিখিত কোন গ্যাস photochemical ধোয়াসার (smog) জন্য দায়ী নয়?
A Hydrocarbon
B O3
C NO2
D CFC
Which of the following pollutants is the major contributor to photochemical smog?
A Peroxynitrates
B Hydroperoxides
C Nitrogen dioxide
D Ozone
Which of the following group of gases cause photochemical smog?
A Ozone, PAN and CO
B HC, NO and PAN
C O2, PAN, and NO2
D O3, PAN and NO2
In a photochemical smog, which gas is an eye and mucous membrane irritant?
A SO2
B O3
C CO2
D N2O
Studies of fatal automobile accidents reveal that , in the majority of cases in which one occupant of an automobile is killed another survives, it is the passenger , not the driver , who is killed. It is ironic that the innocent passenger should suffer for the driver's carelessness, while the driver often suffers only minor injuries or none at all. Which of the following is an assumption underlying the reasoning in the passage above?
A In most fatal automobile accidents , the driver of a car in which an occupant is killed is at fault .
B Most deaths in fatal automobile accidents are suffered by occupants of cars rather then by pedestrians .
C Auto safety experts should increase their efforts to provide protection for those in the passenger seats of automobiles
D Automobile passengers sometimes play a contributing role in causing auto accidents
The automobile's exhaust system______foul smelling fumes.
A attracted
B condensed
C neutralized
D emitted
Which of the following gases emitted from automobile exhaust is poisonous?
A Carbon monoxide
B Carbon dioxide
C Hydrocarbons
D Sulphur dioxide
During which of the following operating conditions of an automobile, carbon monoxide content in the exhaust gas is maximum?
A Idle running
B Acceleration
C Cruising
D Deaccelaration

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