71) When more volume of acetylene and less volume of oxygen is supplied, the flame obtained is
Answer is:
Carburizing
ISRO Technician-B Blacksmithy Question Paper - 2019 (Set-1) with Answer Key
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Answer is:
Cast iron
Explanation:
Cast iron is commonly used for machinery housings or base due to its damping characteristics. It is also known for holding its shape when it is subjected to contraction and expansion due to temperature fluctuations. Hence lathe bed is usually made up of cast iron.
