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判断题 Whe two adjacent part are cut, the hatching direction shall be reverese
学科：工程制图（全英语）
时间：2023-05-07 14:05:39
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题目1判断题
Whe two adjacent part are cut, the hatching direction shall be revereseA. 对B. 错
题目2多选题
What is the diameter relationship between hole and boltA. the hole diameter should be larger than bolt diameterB. the hole diameter should be less than bolt diameterC. the hole diameter should be equal to bolt diameterD. the hole diameter should be 1.1times of bolt diameter
题目3判断题
The addendum circle is larger than pitch circle, and the dedendum circle is the smallest oneA. 对B. 错
题目4单选题
what does M, Tr, R mean respectively in thread marksA. metric thread, trapezoidal thread, sealing pipe threadB. trapezoidal thread, sealing pipe thread,metric threadC. trapezoidal thread, ,metric thread,sealing pipe threadD. metric thread, trapezodial thread, sealing pipe thread
题目5单选题
In the symbol of key 16X100 GB/T 1096-2003, what does 100 meanA. length of the keyB. width of the keyC. height of the keyD. number of the key
题目6单选题
Select the correct thread connection drawing method<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201905/3de94be9e00748af936dc763d9a421c7.png">A. aB. bC. cD. d
题目7单选题
In circular view, the notch of screw head should be drawn with an inclind angle of ( )A. 45°B. 60°C. 90°D. 120°
题目8判断题
When draw internal thread, major diameter is drawn as thin line , minor one is drawn as thick line in non circular viewA. 对B. 错
题目9单选题
What does LH mean in thread marksA. left hand threadB. right hand threadC. uncertainD. the length of thread
题目10多选题
In stud joint, the length ,Bm of metal end depends on material connectedA. Bm=d, for steelB. Bm=1.25d or 1.5d for cast ironC. Bm=2d for aluminumD. Bm=0.5d for steel
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