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While designing a screw in a screw jack against buckling failure, the end conditions for the screw are taken as
The lead screw of a lathe has _________ threads.
A lead-screw with half nuts in a lathe, free to rotate in both directions has
When a bolt and nut is made of mild steel, then the effective height of nut is made equal to (where d = Nominal diameter of bolt)
If shearing stress in nut is half the tensile stress in a bolt, then nut length should be equal to
For standard coarse threads of nut, the threads will be as strong in failure by shear as the bolt in tension, if the height of nut (h) is approximately
The pitch of threads on a Jock nut in comparison to pitch of nut is
In a center lathe, the cutting tool is fed in _________ with reference to the lathe axis.
A feed gear box for a screw cutting lathe is designed on the basis of
A screw is said to be over hauling screw, if its efficiency is