In a series system with component reliabilities of 0.95, 0.90, and 0.85, what is the overall system reliability?

Which statement best explains why system reliability decreases in a series configuration?

A machine has a failure rate of 0.00025 failures per hour. What is its mean time between failures (MTBF)?

Three backup generators have reliabilities of 0.80, 0.85, and 0.90. Assuming only one generator must work, what is the system reliability?

Which maintenance tactic directly attempts to reduce variability and detect failures before they occur?

A reliability engineer improves a system by adding redundancy to weak components. Which reliability tactic is being applied?

A system contains two parallel paths. Path A has reliability 0.92, and Path B has reliability 0.88. What is the overall system reliability?

Which of the following is NOT considered an adverse consequence of equipment breakdown?

A preventive maintenance contract costs Php200 monthly and reduces breakdowns to 0.5 per month. If each breakdown costs Php500, what is the total expected monthly cost?

In reliability analysis, FR(%) measures:

Which statement about preventive maintenance is MOST accurate?

Which formula is appropriate for calculating reliability in a series system?

Which of the following would MOST likely increase MTBF?

If a system has a failure rate of 0.002 failures per hour, what is the MTBF?

Which statement correctly distinguishes preventive maintenance from breakdown maintenance?

Which of the following BEST describes a “state of nature” in decision-making?

Which decision-making environment assumes probabilities can be assigned to outcomes?

Under the Maximax criterion, the decision-maker chooses:

Which decision criterion is MOST appropriate for a pessimistic manager?

The equally likely approach assumes that:

A company has the following payoffs:

-Alternative A: Php120,000 or −Php40,000

-Alternative B: Php80,000 or Php10,000

Using the Maximin criterion, which alternative should be selected?

In a decision tree, a square node represents:

In decision tree analysis, circles generally represent:

What is the Expected Monetary Value (EMV) of an alternative with the following outcomes?

0.7 probability of Php100,000

0.3 probability of −Php20,000

Which statement about EMV is TRUE?

Which of the following formulas correctly represents Expected Value of Perfect Information?

Which of the following is NOT one of the six steps in analytic decision-making?

A manager using the Maximax criterion would MOST likely:

A company has these EMVs:

Alternative X = Php45,000

Alternative Y = Php60,000

Alternative Z = Php30,000

Which alternative should be selected under the EMV criterion?

A decision-maker chooses the alternative with the “best of the worst” outcomes. This describes: