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Air Pollution and its Control in Automobile MCQ Questions & Answers | Automobile Engineering

Learn and Practice Air Pollution and its Control in Automobile MCQ Questions & Answers are Available for Automobile Engineering Students to Clear GATE Exams, Technical Interviews, Competitive Examinations, and Other Entrance Exams. The Air Pollution and its Control in Automobile Chapter is Especially Important for Automobile Engineering and GATE Students. Page-9 section-1

Each section contains 100 MCQs on Air Pollution and its Control in Automobile .
81
The component of air filter that prevents the passage of metal particles and sludge is
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Answer: Option A
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82
A diesel engine has excessive black smoke when started in the morning. Which of these could be the cause?
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Answer: Option A
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83
What is the purpose of EVAP canister?
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Answer: Option D
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84
The NOx level in engine exhaust gas can be reduces by following method:
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Answer: Option B
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85
The quantity of soot formed depends upon
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Answer: Option D
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86
Which is used to absorb fuel vapor in the EVAP canister?
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Answer: Option D
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87
Oxides of nitrogen in Petrol engine exhaust can be reduced by the following methods:
1. Use of 5% lean mixture
2. Advancing the spark timing
3. Recirculating a fraction of exhaust gas
4. Using an oxidation catalyst in the exhaust manifold
Which of the above statements is/are correct?
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Answer: Option D
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88
Exhaust gas recycle is done by ducting some of the exhaust flow back into the intake system.
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Answer: Option A
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89
. . . . . . . . are materials that absorb selected molecular compounds and catalyze chemical reactions.
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Answer: Option C
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90
Which of the following causes the photochemical smog?
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Answer: Option D
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