What is substructure work? O Work above ground level
Work on ground level
O Work below ground level
O Work above the superstructure

Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way