Answer / ronak joshi

Pipe differentiate by inside dimension.
Tube differentiate by outside dimension.

Answer / kumar raju

pipe is used where we don't need the working fluid to transfer heat while tube is used where we need it to transfer heat through walls and designation by outer and inner dia is also correct.

Answer / ketan g patel

pipe is different by big dia. & pipe thikness.
tube is different by small dia. & pipe thikness.

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