ASQ
CRE · Question #78
CRE Question #78: Real Exam Question with Answer & Explanation
Sign in or unlock CRE to reveal the answer and full explanation for question #78. The question stem and answer options stay visible for context.
Question
What is the reliability of the power switching system schematic on the left after 30,000 hours ? The electric utility primary power system (A) has a failure rate of 0.00001 failure/hour. The motor generator backup system (B) has a failure rate of 0.0007 failure/hour. The standby system has an imperfect switch with 0.90 reliability per operation.
Options
- A0.75
- B0.80
- C0.87
- D0.83
Unlock CRE to see the answer
You've previewed enough free CRE questions. Unlock CRE for full answers, explanations, the timed quiz mode, progress tracking, and the master PDF. Question stem and options stay visible so you can still see what's on the exam.