機材CH7習題
Authored by mege mege
Specialty
9th - 12th Grade
Used 3+ times
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18 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列敘述鑄鐵何者有誤?
(A)以鼓風爐冶煉而得
(B)是碳含量大於2.0%的鐵碳合金
(C)是冶金廠的重要初級產品,成本低廉
(D)可作為二次重熔的主要爐料。
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列敘述鑄鐵何者有誤?
(A)亞共晶鑄鐵結晶組織為波來體、粒滴斑體與二次雪明碳體的混合組織
(B)共晶鑄鐵為沃斯田體與雪明碳體的細密共晶物
(C)過共晶鑄鐵為粒滴斑體與一次雪明碳體的混合組織
(D)以鑄鐵熔點而言,含碳量6.7%的鑄鐵熔點最低。
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
灰鑄鐵石墨化進行程度由三種顯微組織混合而成,下列何者不是?
(A)石墨
(B)肥粒體
(C)波來體
(D)沃斯田體。
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
影響鑄鐵機械性質最大者莫過於何者的形狀與基體?
(A)石墨
(B)肥粒體
(C)波來體
(D)沃斯田體。
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列敘述鑄鐵何者有誤?
(A)當冷卻速度慢時,石墨多而弱
(B)熔解溫度愈高,石墨愈細
(C)熔解溫度愈高,強度愈大
(D)石墨分布愈均勻則強度愈低。
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列敘述鑄鐵制震能何者有誤?
(A)鑄鐵的石墨愈大,制震能愈大
(B)鑄鐵的石墨形狀愈複雜,制震能愈大
(C)球狀石墨鑄鐵之制震能優於片狀石墨鑄鐵
(D)鑄鐵的制震能是鋼的10倍。
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列何者不是普通鑄鐵CNS規格?
(A)FC100
(B)FC200
(C)FC350
(D)FC500。
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