Resilience is defined as the property of material to absorb energy when deformed _________ and to release this energy when unloaded.
Explanation: It is the definition of resilience.
The shock absorbing capacity of bolt can be increased by making the shank diameter ________ the root diameter.
Explanation: If shank diameter is equal to the thread diameter than, the shank is subjected to higher stress and thus absorbs a great portion of strain energy and relieves the thread portion of high stress.
The shock absorbing capacity of bolts can be increased by
Explanation: Shock absorbing capacity can be increased by decreasing the shank diameter or increasing the length of shank.
If the length of the shank is doubled, then strain energy absorbed by shank
Explanation: Strain energy absorbed by shank is linearly proportional to its length.
Which of the following help in accomplishing the locking?
Explanation: All the methods can be employed to lock the screw.
Crests and roots of the threads may lead to leakage in fluid tight threads if flattened or rounded to a circular arc.
Explanation: As there is engagement in the threads, chances of leakage are reduced.
The static load carrying capacity of fine threads is greater than that of coarse threads.
Explanation: Coarse threads have a higher load carrying capacity.
Coarse threads have helix angle _____ fine threads.
Explanation: Finer threads have lower helix angle.
Which threads have greater resistance to unscrewing?
Explanation: Fine threads have greater resistance to unscrewing as a result of lower helix angle.
Which type of threads is recommended for fluctuating loads?
Explanation: Fine threads have lesser helix angle and hence greater resistance for unscrewing and thus are recommended for fluctuating loads.