
機材CH7是非+解釋
Quiz
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Specialty
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9th - 12th Grade
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Practice Problem
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Medium
mege mege
Used 5+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
鑄鐵是鐵碳合金,碳含量在2.0%到6.67%之間。
Answer explanation
文件7-1章節提到鑄鐵中碳的含量範圍為2.0%至6.67%。
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
當碳含量在2.0%至4.3%時,鑄鐵的組織全為賽門賽鐵。
Answer explanation
文件7-1章節提到,在此範圍內鑄鐵的組織為鐵素體和賽門賽鐵的共晶體。
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
白口鑄鐵中的賽門賽鐵呈細小顆粒狀分布。
Answer explanation
文件7-1章節指出白口鑄鐵中賽門賽鐵以細小顆粒狀存在。
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
磷元素的增加會降低鑄鐵的延展性和韌性。
Answer explanation
文件7-2章節提到磷會降低鑄鐵的延展性和韌性。
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
普通鑄鐵的硬度範圍約在HB50-HB150之間。
Answer explanation
文件7-3章節指出普通鑄鐵的硬度範圍約在HB100-HB277之間。
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
FC250級別的普通鑄鐵適合製造農業機械零件。
Answer explanation
文件7-3章節提到FC250等級可製造農機等中等強度要求的產品。
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
我們日常使用的鑄鐵鍋具通常採用FC300級別的鑄鐵。
Answer explanation
文件7-3章節說明鑄鐵鍋具通常使用FC150或FC200等級的普通鑄鐵。
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