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9. NASA uses four identical onboard computers (that is, three are redundant) to control the space shuttle. If the reliability
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Answer #1

The line diagram of the system is shown below:

The problem is not very clear, so assume two cases, as follows: Case-1: All computers are in parallel and working of any one

Case-1: Assuming, all computers are in parallel and working of any one computer is necessary to operate the system: (simple cCase-2: Assuming, All computers are in parallel and working of two or more computers is necessary to operate the system: SystCalculate the reliability of the system using the following formula as shown below: Rsystem = C* *0.92×(1-0.9)*-+*4*0.98*(1-0

***please ask if you have any doubts.Happy to help you.Thank you.

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