Mechanical Engineering Exam > Mechanical Engineering Tests > Topicwise Question Bank for Mechanical Engineering > Test: Engine Emissions & Their Control - 2 - Mechanical Engineering MCQ
Test: Engine Emissions & Their Control - 2 - Mechanical Engineering MCQ
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10 Questions MCQ Test Topicwise Question Bank for Mechanical Engineering - Test: Engine Emissions & Their Control - 2
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Test: Engine Emissions & Their Control - 2 - Question 1
The elements of most concern in regard to pollution caused by engines are
Test: Engine Emissions & Their Control - 2 - Question 2
One of the major exhaust emissions from Cl engines compared to SI engine is
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Test: Engine Emissions & Their Control - 2 - Question 3
Select the correct statements among the following:
1. Decrease in air - fuel ratio in SI engines results in increase of CO and UBHC.
2. NOx emission is maximum in SI engines when the air - fuel ratio is nearly stoichiometric.
3. NOx emission in SI engines will be lowest during idling.
1. Decrease in air - fuel ratio in SI engines results in increase of CO and UBHC.
2. NOx emission is maximum in SI engines when the air - fuel ratio is nearly stoichiometric.
3. NOx emission in SI engines will be lowest during idling.
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Test: Engine Emissions & Their Control - 2 - Question 5
Which of the following catalyst material promotes the reaction of NOx ?
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Test: Engine Emissions & Their Control - 2 - Question 6
Alcohol is the major source for the emission of
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Test: Engine Emissions & Their Control - 2 - Question 8
Thermal converter cannot reduce emission of
Test: Engine Emissions & Their Control - 2 - Question 9
Efficient operation of catalytic converters require maintenance of
1. temperature
2. equivalence ratio
3. pressure
4. direction of exhaust flow
Q. Select the correct statements from above:
Test: Engine Emissions & Their Control - 2 - Question 10
EGR is the most effective way of reducing emission of
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