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72. 起重吊掛作業中會造成起重機翻倒的力,稱為 (A)力偶力 (B)翻倒力矩 (C)安定力矩 (D)迴轉力矩 。
問題詳情
72. 起重吊掛作業中會造成起重機翻倒的力,稱為
(A)力偶力
(B)翻倒力矩
(C)安定力矩
(D)迴轉力矩 。
參考答案
答案:B
難度:
計算中
-1
書單:
沒有書單,新增
上一篇 :
71. 伸臂起重機迴轉時會造成工作半徑加大的力稱為 (A)向心力 (B)離心力 (C)力偶力 (D)平行力 。
下一篇 :
73. 伸臂起重機吊著荷物做吊臂伏下動作時會增加 (A)翻倒力矩 (B)安定力矩 (C)扭轉力矩 (D)壓縮力矩 。
資訊推薦
74. 起重機的過捲預防裝置是 (A)強制性的規定 (B)參考性的規定 (C)警告性的規定 (D)未規定 。
75. 以螺桿與行走環模擬捲筒運轉方式,間接控制危險點的過捲預防裝置是 (A)螺桿式 (B)凸輪式 (C)重錘式 (D)連桿式 。
76. 以圓盤與凸輪模擬捲筒運轉方式,間接控制危險點的過捲預防裝置是 (A)螺桿式 (B)凸輪式 (C)重錘式 (D)連桿式 。
16. My teacher always says, ”If you don’t______my words, you can ask for help.”(A) use (B) think (C)
17. Everyday, I______ up at 6:30 and eat breakfast at7:00. I always go to school on time.(A) wake (B
18. It will be very cold tomorrow. Wear a hat and socks tokeep yourself______ .(A) wet (B) warm (C)
19. Jenny got married with me five years ago. She is agreat______ . We have two lovely children.(A)
20. Ms. Chen is kind, but she would be very______when she checks her students’ homework.(A) proud (B
21. People can look for a lot of information they want onthe______ . For example, if you want to go
22. It is______ for people to order food fromFoodpanda or UberEats. They don’t have to go to therest
23. It is raining ouside. Don’t ______to bring anumbrella with you.(A) pray (B) forget (C) worry (D)
24. It is not good to read in the dark. So my mom is goingto buy a______ for me. Then I can see more
25. The famous architect(建築師) designed many______buildings in the world; for example, Taipei 101.(A)
26. A: The big test is coming. I plan to study inthe ______. Do you want to go with me?B: Good idea!
三、 語法與對話 27. It is easy for visitors______ the train tickets in theconvenience store in Taiwan.(A) b
28. A: What are we going to______ on Mother’s Day?B: We can take Mom to dinner and buy some flowers.
29. Making cookies ______my sister’s favoritehobby(嗜好). She always shares them with her friends.(A)
30. Because Dad doesn’t want to ______so muchmoney on the car, he takes the MRT to work.(A) cost (B)
31.A:______ you play the guitar this afternoon?B: No, I______ . I was hiking in the mountains at tha
32. A:______ does it take to get to the coffee shop?B: About five minutes. It’s just on the corner.(
33. There ______a big sale in the department store nextSaturday. We can buy lots of things at a low
34. The Lin family will go camping on a farm______ .Do you want to join them?(A) tomorrow (B) just n
35. A: Are you going to pick me up when I arrive?B: Sorry, I need to work tonight, but your uncle___
36. A: In night markets, people can try lots of food andenjoy fun games.B:______A: Some people eat s
37. A: The news says a big typhoon is going to hit Taiwanthis Friday. We should be careful.B:______(