The following parameters are to be calculated while designing a screw jack:
1. Core diameter of screw
2. Torque required to rotate the screw
3. Principal stresses
4. Height of the nut
The correct sequence of the calculation of these parameters is
Option (A)
1, 2, 4, 3
Option (B)
1, 2, 3, 4
2, 1, 3, 4
2, 1, 4, 3
Correct Option:
Question Solution:
Core diameter is calculated on the basis of compression load.
Then after torque is calculated on collar and on screw. Principal stresses are calculated on the given permissible bearing stress the height of nut is calculated.