Safety testing of mine shaft elevator rails is routinely undertaken. The method involves destructive testing of a segment of the cable. The ends of the segment are frayed, then set in conical zinc molds. Each end of the segment is then secured in a large, hydraulic stretching machine. The segment is then placed under increasing load to the point of failure. Data about elasticity, load, and other factors is compiled and a report is produced. The report is then analyzed to determine whether or not the entire rail is safe to use. COUNT 5
QSN1 What part of the mine shaft requires routine testing? ANS1 elevator rails QSN2 What is  the first step in destructive testing? ANS2 The ends of the segment are frayed, then set in conical zinc molds QSN3 Afterwards, what type of machine is the segment secured in? ANS3 hydraulic stretching machine QSN4 What type of testing is done to the an area of the cable? ANS4 destructive testing QSN5 What types of information are collected in the process? ANS5 Data about elasticity, load, and other factors is compiled