For the same pitch, the efficiency of screw jack with square threads i

1.	For the same pitch, the efficiency of screw jack with square threads is
A.	more than that with V-threads
B.	less than that with V-threads
C.	same as that with V-threads
D.	dependent only on the load on the jack
Answer» B. less than that with V-threads

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For the same pitch, the efficiency of screw jack with square threads is

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