GATE 2003 Production & Industrial
28 questions across 1 session
Which one is not a method of reducing cutting forces to prevent the overloading of press
Consider the following statements related piercing and blanking $$1.$$ Shear on the punch reduces the maximum cutting force $$2.$$ Shear increases the capacity of the press needed...
A hydraulic press is used to produce circular blanks of $$10$$ $$mm$$ diameter from a sheet of $$2$$ $$mm$$ thickness. If the shear strength of the sheet material is $$400$$ $$N/m{...
Cold working produces the following effects $$1.$$$$\,\,\,\,\,\,\,\,\,\,\,\,\,\,$$ Stress are set up in the material $$2.$$$$\,\,\,\,\,\,\,\,\,\,\,\,\,\,$$ Grain structure get dist...
Consider the following steps in forging a connecting rod from the bar stock $$1.$$ blocking $$\,\,\,\,\,\,\,\,\,$$ $$\,\,\,\,\,\,\,\,\,$$ $$\,\,\,\,\,\,\,\,\,$$$$2.$$ trimming $$3....
In a single pass flat rolling operation, a $$400$$ $$mm$$ wide steel strip having a thickness of $$10mm$$ is reduced to $$8$$ $$mm$$ by using a roll of $$600mm$$ diameter. Consider...
In a single pass flat rolling operation, a $$400mm$$ wide steel strip having a thickness of $$10mm$$ is reduced to $$8mm$$ by using a roll of $$600mm$$ diameter. The roll-strip con...
A single point cutting tool with a nose radius of $$0.4$$ $$mm$$ was used to turn a component in a lathe employing a feed rate of $$0.3$$ $$mm/rev.$$ If the feed-rate is doubled, t...
Gating ratio of $$1:2:4$$ is used to design the gating system for magnesium alloy casting. This gating ratio refers to the cross section areas of the various gating elements as giv...
The cold cracking susceptibility of the heat affected zone in an arc weld is influenced by $$P.$$ Entraped hydrogen, $$Q.$$ Residual stresses $$R.$$ Marternsitic transformation $$S...
In resistance welding, heat is generated due to the resistance between
Which of the following process can be used for welding of Aluminium alloys $$P.$$ Submerged arc welding $$Q.$$ Gas metal arc welding $$R.$$ Electroslag welding $$S.$$ Gas tungsten...
High speed electron beam welding is focused on the weld spot using
A $$900$$ $$mm$$ long steel plate is welded by manual metal arc welding process using welding current of $$150$$ $$A,$$ arc voltage of $$20$$ $$V$$ and welding speed of $$300$$ $$m...
A weld is made using $$MIG$$ welding process with the following welding parameters: Current: $$200A;$$ Voltage: $$25V;$$ Welding speed: $$18$$ $$cm/min;$$ wire diameter: $$1.2$$ $$...
A weld is made using $$MIG$$ welding process with the following welding parameters: Current: $$200A;$$ Voltage: $$25V;$$ Welding speed: $$18$$ $$cm/min;$$ wire diameter: $$1.2$$ $$...
When $$3-2-1$$ principle is used to support and locate a three dimensional work-piece during machining, the number of degrees of freedom that are restricted is
The flanks of teeth of rack-type gear cutter used for cutting involute gear profiles are:
The purpose of helical grooves in a twist drill is to $$1.$$ Improve the stiffness $$2.$$ Save a tool material $$3.$$ Provide space for chip removal $$4.$$ Provide rake angle for t...
Which one of the following is not a synthetic abrasive material
Orthogonal machining of a steel work-piece is done with a $$HSS$$ tool of zero rake angle. The ratio of the cutting force and the thrust force on the tool is $$1:0.372.$$ The lengt...
A cylinder of $$25mm$$ diameter and $$100mm$$ length is turned with a tool, for which the relation $$V{T^{0.25}} = 55$$ is applicable. The cutting velocity is $$22m/min.$$ For a to...
Tool life equation for two tools under consideration are as follows $$\eqalign{ & HSS:\,\,\,\,\,\,\,\,\,\,\,\,\,V{T^{0.2}} = 150 \cr & Carbide:\,\,\,\,\,\,V{T^{0.3}} = 250 \cr} $$...
The following data refers to an orthogonal machining of mild steel with a single point $$HSS$$ tool. Rake angle of tool $$ = {10^ \circ },$$ uncut chip thickness $$=0.3mm,$$ width...
The following data refers to an orthogonal machining of mild steel with a single point $$HSS$$ tool. Rake angle of tool $$ = {10^ \circ },$$ uncut chip thickness $$=0.3mm,$$ width...
A casting of size $$100\,\,mm \times 100\,\,mm \times 50\,\,mm$$ is required. Assume volume shrinkage of casting $$2.6\% $$. If the height of the riser is $$80$$ $$mm$$ and riser v...
Which one of the following is NOT a property of a sand mold?
Chapters are placed between mould and core surfaces in order to :