The discharge of hydrocarbons from an automobile exhaust is minimum when the vehicle is

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Mr. Dubey

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Q. The discharge of hydrocarbons from an automobile exhaust is minimum when the vehicle is

(A) Decelerating
(B) Cruising at high speeds
(C) Cruising at low speeds
(D) Idling

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✅ Correct Answer: (D) Idling

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