【判断题】
钳工操作时工具、夹具、量具应放在指定地点，严禁乱堆乱放；应顾及前后左右，并保持一定的距离，以免碰伤他人
A. 对
B. 错
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A
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【判断题】
套螺纹的方法：右手握住铰手的中间部分，加适当压力，左手将铰手的手柄顺时针方向转动，在板牙切入圆杆 2～3 牙时，应检查板牙是否歪斜，发现歪斜，应纠正后再套，当板牙位置正确后，再往下套就不加压力
A. 对
B. 错
【判断题】
焊接是指通过适当的物理化学过程如加热、加压或二者并用等方法，使两个或两个以上分离的物体产生原子(分子)间的结合力而连接成一体的连接方法，是金属加工的一种重要工艺
A. 对
B. 错
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