Answer / arumugam

O ring is like a Gasket which is made by rubber to protect
the leakage of gas or vapour inbetween two metal products
(Air compressor valve plate ,Shell and tube heat
exchanger's desh end etc..) ,its using all kind of
mechanical products

Answer / ganesh.r.k

O rings are fitted to form a leak proof joints between two
maiting surfaces

Answer / murali

O- Ring it is used for sealing to prevent from leakages,
O- rings used for only straight threads, it won't suit for tapered threads. For tapered threads other sealing materials is available like tefflon tape etc...

reversing of each word in the string

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