Which of the following mechanism is mostly used in shaping and slottin

1.	Which of the following mechanism is mostly used in shaping and slotting machines?
A.	Whitworth quick return motion mechanism
B.	Bull engine
C.	Crank and slotted lever quick return motion mechanism
D.	Gnome engine
Answer» B. Bull engine

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Which of the following mechanism is mostly used in shaping and slotting machines?

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