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problem 1 30 points consider a boeing 747-400 at weight close to the maximum takeo weight mtow cruising at mach 082 at an altitude of 32000
production planning amp control assignment 2 kid style international makes furniture designed for children its most
show that the entropy maximum principle encountered in the study of isolated system is equivalent to the statement that the nonflow exergy of an
1 factor of safety is calculated by using which of the following set of values select the one best answer from the choices given
a piston-cylinder assembly fitted with a paddle wheel contains air initially at p130 lbfin2 t1540 176f and v14 ft3 the air undergoes a process to a
could i have 3 topic ideas with problem statement and research questions for each to pick one and send it to the expert i have a project
derive the torsion formula as torsion divided by radius is equal to modulus of rigidity multiplied by twist of angle all divided by the length of a
pre heat interpass temp requirements for filler metalsthe preheat and inter pass temperature must be sufficient to prevent the
flux cored arc weldingsingle pass f illet welds upto 80 mm maximum and groove welds made with a single pass or a single pass each side may be made
submerged arc welding single pass filler welds upto 80 mm maximum and groove welds made with a single pass or a single pass each side may be made
shielded metal arc welding single pass fillet welds upto frac14 64 mm maximum and frac14 groove welds made with a single pass or a single pass
welder performance qualificationsrequirement of welder qualificationin performance qualification the basic attempt is to establish the ability of the
scope of wps and pqra welding procedure specification wps is written qualified welding procedure prepared to provide direction for making production
variables used in wpsdepending on their influence on obtaining a desired weldment the welding variables are then classified and listed some of them
writing of a welding procedure specification wpsa typical working procedure specification is written with all the factors of production in mind both
welding procedure specification wps the purpose of welding procedure specification wps and procedure qualification record pqr is to determine that
metallurgical compatibilitythe two facets of property as above could be made analogous crudely to an athletes wholesome strength which includes both
welding procedure and performance qualificationa total quality assurance scheme embracing all aspects of manufacture would have necessarily made all
intrepretation of defectsintrepretation is an important factor is controlling the quality of the product on economic levels sometimes for want of
structural notchesin t he case of solid solution strengthened alloys and age hardenabled steel the variation in heat io during welding may cause
embrittlementfor use at high strength coupled with good notch toughness all weld structure must be tempered low carbon martensite carbon and
arc strikesrepresent any localised heat affected zone caused by an arc arc strike tends to produce hardening particularly in high carbon steels and
gas porosityporosity is the presence of gas pockets or voids caused by the entrapment of gas evolved during weld metal solidification this porosity
cracks cracks are the linear ruptures of the metal under stress sometimes they appear large and frequently they are narrow separations the major
geometric defects undercutundercut represents a depression into the base metal adjacent to the toe of the weld and if it forms a notch it is a