Valve overlap is the number of degrees of camshaft rotation during whi – McqOptions

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1.	Valve overlap is the number of degrees of camshaft rotation during which
A.	oth valves are closed
B.	oth valves are open
C.	oth 'A' and 'B'
D.	one of these
Answer» C. oth 'A' and 'B'

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