Dear Aspirant,
A machine element used for holding/joining two or more parts of a machine is known as FASTENER. And the process of joining the parts is called as fastening. Fasteners are used primarily for creating non-permanent joints. There can be two types of fastening processes, namely Permanent & Temporary fastening.
Thanks.
Question : In a motor with 120 machine parts, 5% of the parts were defective. In another motor with 80 machine parts, 10% of the parts were defective. For the two motors considered together, the percentage of defective machine parts was:
Option 1: 7
Option 2: 6.5
Option 3: 7.5
Option 4: 8
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