For a high compression aircraft air conditioning system, the MTBF is 100 hours. This mean life is allocated for four serial units comprising the total system. The unit failure rates are then weighted as follows:

w 1 = 0.1250 w 3 = 0.1875 w 2 = 0.2500 w 4 = 0.4375 Based upon the above data, indicate which of the following is the correct calculation for one of the units.

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For a high compression aircraft air conditioning system, the MTBF is 100 hours. This mean life is allocated for four serial units comprising the total system. The unit failure rates are then weighted as follows:

w 1 = 0.1250 w 3 = 0.1875 w 2 = 0.2500 w 4 = 0.4375 Based upon the above data, indicate which of the following is the correct calculation for one of the units.

Accepted Answer

A. 3 = 0.0018750

Answer

B. 4 = 0.0435700

Answer

C. 1 = 0.0125000

Answer

D. 2 = 0.0025100

For a high compression aircraft air conditioning system, the MTBF is 100 hours. This mean life is allocated for four serial units comprising the total system. The unit failure rates are then…

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