21. |
Cast iron has
|
||||||||
Answer:
Option (d) |
22. |
Malleable cast iron is produced
|
||||||||
Answer:
Option (c) |
23. |
White cast iron has
|
||||||||
Answer:
Option (d) |
24. |
According to Indian standard specifications, cast iron designated by 'FG 150' means
|
||||||||
Answer:
Option (d) |
25. |
Grey cast iron has
|
||||||||
Answer:
Option (a) |
26. |
Nodular cast iron is produced by adding __________ to the molten cast iron.
|
||||||||
Answer:
Option (d) |
27. |
When elements like nickel, chromium, copper and molybdenum are added to the molten cast iron, it produces
|
||||||||
Answer:
Option (d) |
28. |
Sulphur in cast iron
|
||||||||
Answer:
Option (b) |
29. |
Which of the following inpurity in cast iron makes it hard and brittle?
|
||||||||
Answer:
Option (b) |
30. |
According to Indian standard specifications, SG 400/15 means
|
||||||||
Answer:
Option (b) |