1
GATE PI 2005
MCQ (Single Correct Answer)
+2
-0.6
A cast steel slab of dimension $$30 \times 20 \times 5\,\,cm$$ is poured horizontally using a side riser. The riser is cylindrical in shape with diameter and height, both equal to $$D.$$ The freezing ratio of the moulds is
A
$$8D/75$$
B
$$4D/75$$
C
$$75/8D$$
D
$$75/4D$$
2
GATE PI 2005
MCQ (Single Correct Answer)
+2
-0.6
The shape factor for a casting in the form of an annular cylinder of outside diameter $$30$$ $$cm,$$ inside diameter $$20$$ $$cm$$ and height $$30$$ $$cm$$ (correction factor $$k=1.0$$) will be
A
$$21.77$$
B
$$6.28$$
C
$$9.42$$
D
$$12.28$$
3
GATE PI 2004
MCQ (Single Correct Answer)
+2
-0.6
Match the items of List $${\rm I}$$ (Equipment) with the items of List $${\rm II}$$ (Process) and select the correct answer using the given codes GATE PI 2004 Casting - Casting Process Question 5 English
A
$$P - 2,\,\,Q - 1,\,\,R - 4,\,\,S - 5$$
B
$$P - 4,\,\,Q - 2,\,\,R - 3,\,\,S - 5$$
C
$$P - 4,\,\,Q - 5,\,\,R - 1,\,\,S - 2$$
D
$$P - 3,\,\,Q - 5,\,\,R - 2,\,\,S - 1$$
4
GATE PI 2003
MCQ (Single Correct Answer)
+2
-0.6
Chapters are placed between mould and core surfaces in order to :
A
Reduce directional solidification
B
Help local alloying of molten metal
C
Help easy removal of core from casting
D
Prevent core movement due to buoyancy
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