Efficiency of a screw jack is given b? – McqOptions

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1.	Efficiency of a screw jack is given b?
A.	tan(‚âà√≠¬¨¬± + ‚Äö√Ñ¬∂‚Äö√†√®)/tan‚âà√≠¬¨¬±
B.	tan‚âà√≠¬¨¬±/ tan(‚âà√≠¬¨¬± + ‚Äö√Ñ¬∂‚Äö√†√®)
C.	tan(‚âà√≠¬¨¬± ‚Äö√Ñ√∂‚àö√ë‚àö¬® ‚Äö√Ñ¬∂‚Äö√†√®)/tan‚âà√≠¬¨¬±
D.	tan‚âà√≠¬¨¬±/tan(‚âà√≠¬¨¬± ‚Äö√Ñ√∂‚àö√ë‚àö¬® ‚Äö√Ñ¬∂‚Äö√†√®)
Answer» C. tan(‚âà√≠¬¨¬± ‚Äö√Ñ√∂‚àö√ë‚àö¬® ‚Äö√Ñ¬∂‚Äö√†√®)/tan‚âà√≠¬¨¬±

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