In cross or regular lay ropes_________________?

In cross or regular lay ropes_________________?

A. direction of twist of wires in strands is opposite to the direction of twist of strands
B. direction of twist of wires and strands are same
C. wires in two adjacent strands are twisted in opposite direction
D. wires are not twisted
E. none of the above

Basic hole is one_________________?

Basic hole is one_________________?

A. whose upper deviation is zero
B. whose lower deviation is zero
C. whose lower as well as upper deviations are zero
D. does not exist
E. none of the above

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________________?

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________________?

A. 0.4 times
B. 0.6 times
C. 0.7 times
D. 0.8 times
E. 0.9 times the normal diameter of bolt

The connecting rod bolts are tightened up with initial tension greater than the external load so that___________________?

The connecting rod bolts are tightened up with initial tension greater than the external load so that___________________?

A. joint may not open up
B. bolts are weakest elements
C. the resultant load on the bolt would not be affected by the external cyclic load
D. bolts will not loosen during service
E. none of the above