1
GATE ME 2016 Set 1
+2
-0.6
A cylindrical job with diameter of $$200$$ $$mm$$ and height of $$100$$ $$mm$$ is to be cast using modulus method of riser design. Assume that the bottom surface of cylindrical riser does not contribute as cooling surface. If the diameter of the riser is equal to its height, then the height of the riser (in $$mm$$) is
A
$$150$$
B
$$200$$
C
$$100$$
D
$$125$$
2
GATE ME 2016 Set 2
Numerical
+2
-0
Gray cast iron blocks of size $$100\,\,mm \times 50\,\,mm \times 10\,\,mm$$ with a central spherical cavity of diameter $$4$$ mm are sand cast. The shrinkage allowance for the pattern is $$3\%$$. The ratio of the volume of the pattern to volume of the casting is ___________________
3
GATE ME 2015 Set 3
Numerical
+2
-0
The dimensions of a cylindrical side riser (height $$=$$ diameter) for a
$$25cm \times 15cm \times 5cm$$ steel casting are to be determined. For the tabulated shape factor values given below, the diameter of the riser (in $$cm$$) is _______________
4
GATE ME 2015 Set 3
Numerical
+2
-0
Ratio of solidification time of a cylindrical casting (height $$=$$ radius) to that of a cubic casting of side two times the height of cylindrical casting is ____________