新电焊工考试（The new electric welder examination）.docVIP

新电焊工考试（The new electric welder examination） Examination paper: welding and thermal cutting operation theory test paper Candidates Name: Jiang Wei A total of 15 multiple-choice questions, 2 points for each question There are 35 questions in the judgment question, each of which is 1 There are 35 multiple-choice questions, each of which is 1 First test paper 1, tungsten inert gas welding (TIG) is a method of welding the base metal and welding wire by melting arc between the tungsten electrode and the workpiece under the protection of inert gas. (judgment questions) Answer: the standard answer: Yes 2, manual arc welding uses the heat energy produced by arc discharge to fuse electrode and base metal to form weld seam. () (judgment) Answer: the standard answer: Yes 3, because the AC welding machine no-load voltage is 65 ~ 85V low voltage, so it will not cause electric shock. () (judgment) Answer: wrong standard answer: wrong 4, in acetylene bottle equipped with (). (MCQs) 1, salt water 2, methanol 3, porous filler 4, acetone Answer: porous filler, acetone standard answer: porous filler, acetone 5, in plasma spraying operations, higher noise will be generated. () (judgment) Answer: the standard answer: Yes 6, according to different brazing filler metal, brazing is divided into 2 kinds of brazing and brazing. () (judgment) Answer: the standard answer: Yes 7, in the paint, paint, oil and other dangerous places as long as the nod leadership is hot. () (judgment) Answer: wrong standard answer: wrong 8, the neck, chest and waist fractures of the wounded, must ensure that the injured parts straight. () (judgment) Answer: the standard answer: Yes 9, for flammable and explosive gases, the upper and lower limits of explosion limits are wider, and the risk of explosion occurs. (multiple-choice question) 1, the greater the 2, the smaller 3, reduce 4, unchanged Answer: the bigger the standard answer: the greater 10, the welding work wear (PEI) (wear) and other protective equipment. (M