The manganese content in cast iron should be kept below ______

Latin word for iron is ____

Which of the following is the black oxide of iron?

The reciprocal of thermal conductivity is known as ______

Which of the following statements about low shaft blast furnace is not true?

Aston’s process is used to manufacture _____

Rate of the burning of a good fuse is _______

Remelting of pig iron with limestone and coke to manufacture cast iron is carried out in a ________