問題詳情
2. 參考下圖所示，二衝程柴油機透過掃氣口檢查活塞環之情況，何者敘述正確？ 
(A) 轉俥使活塞上行至掃氣口下方，自觀察口觀看檢查氣缸壁和活塞頭部
(B) 當活塞上行通過掃氣口時，查看活塞頭、活塞環和活塞裙工作表面
(C) 活塞繼續上行，查看氣缸套下部和活塞桿的情況
(D) 活塞繼續下行，查看十字頭下部和曲拐軸的情況
(A) 轉俥使活塞上行至掃氣口下方，自觀察口觀看檢查氣缸壁和活塞頭部
(B) 當活塞上行通過掃氣口時，查看活塞頭、活塞環和活塞裙工作表面
(C) 活塞繼續上行，查看氣缸套下部和活塞桿的情況
(D) 活塞繼續下行，查看十字頭下部和曲拐軸的情況
參考答案
答案：B
難度：適中0.694656
統計：A(29),B(91),C(7),D(4),E(0)
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