RRB NTPC CBT-1 previous year question
Which process is responsible for the rising of warm air over a heated surface?
Asked in RRB NTPC 2026 — 17 June Shift 2 · General Awareness
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Correct answer: (C) Convection
Convection is the process by which warm air near a heated surface becomes less dense and rises, transferring heat through the bulk movement of the fluid (air or liquid).
हिंदी में प्रश्न
निम्नलिखित में से कौन-सी, राजस्थान राज्य की एक पारंपरिक लोक संगीत शैली है जो अपनी ऊर्जावान ताल और ज॑वित धुन के लिए जानी जाती है?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (C) मांड
संवहन (convection) वह प्रक्रिया है जिसमें गर्म सतह के पास की हवा कम घनी होकर ऊपर उठती है और तरल (हवा या द्रव) की सामूहिक गति से ऊष्मा स्थानांतरित होती है।
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