👉In this video I have explained about Reliability and system failure chapter from operation research in details with solved question.

 

👉Concept of System Reliability : The system reliability is important because almost all physical and a lot of abstract conceptual systems may breakdown after sometime. A breakdown of a system involves an actual failure as well as unsatisfactory performance of malfunctioning .Thus a system is capable of giving performance over a longer period is said to be more reliable.

Definitions of Reliability:

1) Reliability is the probability of a device performing its purpose adequately for the period of time intended under operating conditions encountered.

2)Reliability is a function of time .Almost burnt out light bulbs are not expected to be reliable as one recently put into service.