1
GATE ME 2008
+2
-0.6
In the deep drawing of cups, blanks show a tendency to wrinkle up around the periphery (flange). The most likely cause and remedy of the phenomenon are respectively,
A
Buckling due to circumferential compression: increase blank holder pressure
B
High blank holder pressure and high friction: reduce blank holder pressure and apply lubricant
C
High temperature causing increase in circumferential length; apply coolant to blank
D
Buckling due to circumferential compression; decrease blank holder pressure.
2
GATE ME 2007
+2
-0.6
The force requirement in a blanking operation of low carbon steel sheet is $$5.0$$ $$kN.$$ The thickness of the sheet is $$'t'$$ and diameter of the blanked part is $$'d'.$$ For the same work material, if the diameter of the blanked part is increased to $$1.5d$$ and thickness is reduced to $$0.4t$$, the new blanking force in $$kN$$ is
A
$$3.0$$
B
$$4.5$$
C
$$5.0$$
D
$$8.0$$
3
GATE ME 2006
+2
-0.6
Match the items in column $${\rm I}$$ and $${\rm I}$$ $${\rm I}$$
A
$$P - 6,\,\,Q - 3,\,\,R - 1,\,\,S - 2$$
B
$$P - 4,\,\,Q - 5,\,\,R - 6,\,\,S - 1$$
C
$$P - 2,\,\,Q - 5,\,\,R - 3,\,\,S - 4$$
D
$$P - 4,\,\,Q - 3,\,\,R - 1,\,\,S - 2$$
4
GATE ME 2005
+2
-0.6
A $$2$$ $$mm$$ thick metal sheet is to be bent at an angle of one radian with a bend radius of $$100$$ $$mm.$$ If the stretch factor is $$0.5,$$ the bend allowance is
A
$$99$$ $$mm$$
B
$$100$$ $$mm$$
C
$$101$$ $$mm$$
D
$$102$$ $$mm$$
GATE ME Subjects
EXAM MAP
Medical
NEET