焊工无纸化考试体验标答对照 6(外国英语资料).docVIP

焊工无纸化考试体验标答对照 6(国外英文资料) Paperless examination, experience, mark, answer, contrast A total of 100 questions (Note: the red marker topic for your mistakes. ) 1. In the assembly drawing, in order to make a part of the assembly more clearly expressed, it is assumed that some parts will be drawn to draw. Correct answer: * your answer: B. 2, people put all the elements according to the nuclear charge number (from) order to the element number, this number is called the atomic number of the element. Correct answer: your answer: tick tick 3. Understanding the name, function, and working principle of a machine or a component is one of the purposes of reading an assembly drawing. Correct answer: your answer: tick tick 4, the temperature of the arc column is not limited by the boiling point of the material, so it is usually higher than the anode and cathode, and generally reaches 6000~8000 degrees centigrade. Correct answer: put your answer: * 5 the welding method that uses the arc heat produced by gas conduction as heat source is called arc welding. Correct answer: your answer: tick tick 6, the air is one of the basic conditions for human survival, the human body from the air continuously inhaled oxygen necessary for life, and the metabolism of substances produced during the C0 excreted. Correct answer: * your answer: B. 7, welders pneumoconiosis refers to long-term inhalation of more than the concentration of dust, lung tissue caused by diffuse fibrosis of the disease. Correct answer: put your answer: 8, metal materials in the process of tensile stress yielding phenomenon is called the yield point, expressed by B. The correct answer: * your answer: 9. The alloy is composed of two different crystal structures which are mechanically mixed with each other. They are called mechanical mixtures. They tend to have higher strength and less plasticity than single solid solutions. Correct answer: put your answer: 10, the use of some metal materials melting point lower than that of b