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molten metal MCQ Questions for Class 12

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3 questions tagged with molten metal.

Question 1/3 Expert History Bricks, Beads and Bones craft production Class 12 Level 10

मोम-क्षय विधि में मोम के पिघलकर निकल जाने के बाद अगला निर्णायक चरण क्या था?

After the wax melted out in the lost-wax process what was the next decisive stage?

Explanation opens after your attempt
Correct Answer

A. खोखले साँचे में पिघली धातु भरनाPouring molten metal into the hollow mould

Step 1

Concept

Molten metal was poured into the cavity left by the wax. Remember the sequence of casting.

Step 2

Why this answer is correct

The correct answer is A. खोखले साँचे में पिघली धातु भरना / Pouring molten metal into the hollow mould. Molten metal was poured into the cavity left by the wax. Remember the sequence of casting.

Step 3

Exam Tip

मोम निकलने से बने खोखले स्थान में पिघली धातु भरी जाती थी। परीक्षा में ढलाई का क्रम याद रखें।

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Question 2/3 Medium History Bricks, Beads and Bones craft production Class 12 Level 12

धातु ढलाई में मिट्टी के साँचे का उपयोग किसलिए होता था?

What was the purpose of a clay mould in metal casting?

Explanation opens after your attempt
Correct Answer

C. पिघली धातु को निश्चित आकार देने के लिएTo give molten metal a fixed shape

Step 1

Concept

Molten metal took the desired form when poured into a mould. Remember the link between mould and casting.

Step 2

Why this answer is correct

The correct answer is C. पिघली धातु को निश्चित आकार देने के लिए / To give molten metal a fixed shape. Molten metal took the desired form when poured into a mould. Remember the link between mould and casting.

Step 3

Exam Tip

पिघली धातु साँचे में भरकर इच्छित आकार प्राप्त करती थी। परीक्षा में साँचा और ढलाई का संबंध याद रखें।

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Question 3/3 Easy History Bricks, Beads and Bones craft production Class 12 Level 11

ढलाई में पिघली धातु कहाँ डाली जाती थी?

Where was molten metal poured during casting?

Explanation opens after your attempt
Correct Answer

B. साँचे मेंInto a mould

Step 1

Concept

In casting, molten metal was poured into a mould to give it shape. Remember mould and casting together.

Step 2

Why this answer is correct

The correct answer is B. साँचे में / Into a mould. In casting, molten metal was poured into a mould to give it shape. Remember mould and casting together.

Step 3

Exam Tip

ढलाई में पिघली धातु को साँचे में डालकर आकार दिया जाता था। परीक्षा में साँचा और ढलाई साथ याद रखें।

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