1
GATE ME 2003
MCQ (Single Correct Answer)
+2
-0.6
With a solidification factor of $$0.97 \times {10^6}s/{m^2},$$ the solidification time (in seconds) for a spherical casting of $$200$$ $$mm$$ diameter is
A
$$539$$
B
$$1078$$
C
$$4311$$
D
None
2
GATE ME 2003
MCQ (Single Correct Answer)
+1
-0.3
Cold working of steel is defined as working
A
at its re-crystallization temperature
B
above its re-crystallization temperature
C
below its re-crystallization temperature
D
at two thirds of the melting temperature of the metal
3
GATE ME 2003
MCQ (Single Correct Answer)
+2
-0.6
A brass billet is to be excluded from its initial diameter of $$100mm$$ to a final diameter of $$50mm$$. The working temperature is $${700^ \circ }C$$ and the extrusion constant is $$250$$ $$MPa.$$ The force required for extrusion is
A
$$5.44$$ $$MN$$
B
$$2.72$$ $$MN$$
C
$$1.36$$ $$MN$$
D
$$0.36$$ $$MN$$
4
GATE ME 2003
MCQ (Single Correct Answer)
+1
-0.3
In Oxyacetylene gas welding, temperature at the inner cone of the flame is around
A
$${3500^0}C$$
B
$${3200^0}C$$
C
$${2900^0}C$$
D
$${2550^0}C$$
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Medical
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Graduate Aptitude Test in Engineering
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