Duriron is__________________?
Correct answer: E. All A., B. and C.
- A. Acid resistant, brittle and very hard
- B. High silicon iron
- C. Prone to breakage due to thermal expansion because of its very high co-efficient of thermal
- D. expansion
- E. All A., B. and C.
Explanation
Duriron is a high-silicon cast iron that resists acids but is very hard and brittle. Its poor resistance to thermal shock means sudden temperature changes can cause cracking, so all three descriptions are intended to apply.
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