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airflow MCQ Questions for Class 12

airflow se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

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2 questions tagged with airflow.

Question 1/2 Hard History Bricks, Beads and Bones craft production Class 12 Level 11

मृद्भांड भट्ठी में वायु प्रवाह का नियंत्रण क्यों आवश्यक था?

Why was control of airflow necessary in a pottery kiln?

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Correct Answer

C. समान ताप और उचित पकाई बनाए रखने के लिएTo maintain even temperature and proper firing

Step 1

Concept

Airflow affects temperature and oxidation. Link kiln control with technical skill.

Step 2

Why this answer is correct

The correct answer is C. समान ताप और उचित पकाई बनाए रखने के लिए / To maintain even temperature and proper firing. Airflow affects temperature and oxidation. Link kiln control with technical skill.

Step 3

Exam Tip

वायु प्रवाह ताप और ऑक्सीकरण को प्रभावित करता है। परीक्षा में भट्ठी नियंत्रण को तकनीकी दक्षता से जोड़ें।

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Question 2/2 Medium History Bricks, Beads and Bones craft production Class 12 Level 12

धातु गलाने के लिए भट्ठी में उच्च ताप कैसे प्राप्त किया जाता था?

How was high temperature achieved in furnaces for smelting metal?

Explanation opens after your attempt
Correct Answer

B. हवा के तेज प्रवाह सेBy supplying a strong flow of air

Step 1

Concept

A strong airflow made the fuel burn more intensely and raised the temperature. Understand the role of bellows.

Step 2

Why this answer is correct

The correct answer is B. हवा के तेज प्रवाह से / By supplying a strong flow of air. A strong airflow made the fuel burn more intensely and raised the temperature. Understand the role of bellows.

Step 3

Exam Tip

हवा के प्रवाह से ईंधन अधिक तीव्र जलता और ताप बढ़ता था। परीक्षा में धौंकनी का कार्य समझें।

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