Related Questions

Addition of small amount of __________ to grey cast iron is done to produce nodular grey cast iron.
A Manganese
B Phosphorous
C Magnesium
D Chromium
If an aluminium pattern made from a wooden master pattern is to be used for grey iron castings, then the shrinkage allowance allowed on the wooden pattern should be
A 10 mm/m
B 16 mm/m
C 20 mm/m
D 26 mm/m
There are five persons sitting on a bench. Blue eyed lady sitting in the middle is my mother. At the extreme left, the man with grey hair is my maternal uncle. Lady sitting at the extreme right is having a pimple on her nose and is the wife of person who is sitting between blue eyed lady and grey haired man and has a pointed nose. A lady having marks on her face is the younger sister of the blue eyed lady and sitting on the remaining fifth place. The person having a pointed nose is the son of the blue eyed lady. What is the lady having marks on her face to the man sitting at extreme left ?
A Wife
B Maternal Aunt
C Sister
D Sister-in-law
White cast iron as compared to grey cast iron is
A More durable
B Very brittle
C Very hard
D All of the above
An important property of malleable cast iron in comparison to grey cast iron is the high
A Compressive strength
B Ductility
C Carbon content
D Hardness
__________ of grey cast iron produces white cast iron.
A Tempering
B Rapid heating
C Rapid cooling
D Slow cooling
Carbon is present in the form of __________ in grey cast iron.
A Spheroids
B Nodular aggregates of graphite
C Flakes
D Cementite
In grey cast iron, carbon is present in the form of
A Cementite
B Free carbon
C Flakes
D Spheroids
The percentage of carbon in pig iron varies from
A 0.1 to 1.2%
B 1.5 to 2.5%
C 2.5 to 3.5%
D 3.5 to 4.5%
The percentage of carbon in cast iron varies from
A 0.1 to 0.5
B 0.5 to 1
C 1 to 1.7
D 1.7 to 4.5

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