CRE 무료 덤프문제 온라인 액세스

A go/no-go device is tested until it fails. If X is the number of tests to first failure with no wear out present, and the probability of success on each test is .99, then the probability that X is greater than 5 is:
Response:

• A.0.9510
• B.0.9610
• C.0.9410
• D.0.9310

An undesired event in a system led to the below fault tree. Which of the following are the cut sets of the fault tree?

Response:

• A.{A, B1}, {B2}
• B.{A}, {B1, B2}
• C.{A}, {A, B1}
• D.{A, B1} {A, B2}

A field test may be considered satisfactory if:
Response:

• A.The human factors engineers can operate the equipment under all required conditions.
• B.The reliability engineer can operate the equipment under all required conditions.
• C.The design engineer can operate the equipment under all required conditions.
• D.Alternate operators can operate the equipment under all required conditions.

A certain equipment has a MTBF of m = 300 hours. Assuming an exponential distribution of time to failure, what is the maximum time of allowable operation if a reliability of 0.999 is required?
Response:

• A.300 hours
• B.0.3 hours.
• C.0.003 hours.
• D.30 hours.

There is a subtle difference between a standard parts program and a standardization program. A standardization program tends to emphasize:
Response:

• A.Limited suppliers.
• B.Limited part numbers.
• C.Limited part applications.
• D.Limited sizes.