维修试题-1(国外英文资料).docVIP

维修试题-1(国外英文资料) Maintenance question -1.txt insane madman is not terrible, terrible is the spirit of normal madman! 1, in practice, the most commonly used measuring instrument with vernier caliper, micrometer, micrometer, dial indicator, dial gauge, height gauge, vernier, dial diameter etc.. 2. The main marking tools are: crossed plates, compasses, stroke cards, scribing pins, scribing plates, square angles and samples. 3, bench work include: marking, chisel cutting, sawing, cutting, drilling, reaming, tapping, scraping and grinding. 4, according to the accuracy of the workpiece being scraped, scraping can generally be divided into coarse scraping, fine scraping, fine scraping three steps. 5. In grinding, the abrasive cutting of the workpiece by means of a cutting edge with multiple cutting edges includes two aspects of physics and chemistry. Track 6, manual grinding generally adopts several linear, cycloid, helix and imitation of figure 8, no matter what kind of trajectory of the grinding movement, their common feature is the parallel movement of the workpiece to be machined surface and the work surface of the sealing plate. 7, according to the characteristics of a tooth, the file can be divided into single and double tooth tooth file file, coarse file, fine tooth file 8. The twist drills used in drilling are mainly made up of handles, necks and work parts. 9, code named 302 rolling bearings, its inner diameter is 15mm, code number 210 bearings, its inner diameter is 50mm. 10, the middle and low pressure flange sealing surface structure has planar seal, concave convex surface seal, mortise and tenon surface sealing. 11, keyway width measurement, the general choice of measuring tool is vernier caliper. 12, equipment repair, the surface of the worn parts of the repair, usually re welding, electroplating, bonding and spraying four broad categories. 13, the role of grinding is to make the parts get high surface finish, dimensional accuracy, geometric accuracy and accura