514) If the size of a standard specimen for a fatigue testing machine is increased, the endurance limit for the material will

515) When the fulcrum is in between the load and effort, the lever is said to be of

516) The ball bearings are, usually, made from

517) The V-belt is used to transmit great amount of power and when the two pulleys are very near to each other.

518) A coupling used to connect two perfectly aligned shafts, is