In a centre lathe, the cutting tool is fed in ______ With reference to the lathe axis

all of these

The size of a lathe is specified by the
* length between centers
* swing diameter over the bed
* swing diameter over the carriage

twice

slow speed

chilled cast iron

Cast iron is commonly used for machinery housings or base due to its damping characteristics. It is also known for holding its shape when it is subjected to contraction and expansion due to temperature fluctuations. Hence lathe bed is usually made up of cast iron.