[Feb 07, 2023] CRE PDF Recently Updated Questions Dumps to Improve Exam Score
CRE Dumps Full Questions with Free PDF Questions to Pass
NEW QUESTION 144
The "least squares" description in regression analysis pertains to:
Response:
- A. Averages of the predicted values.
- B. The error term in the equation.
- C. Sums of the squares of the deviations from the predictions.
- D. The average of the actual data minus the average of the predicted data.
Answer: C
NEW QUESTION 145
A resistor is rated at 1 watt. One example of using this resistor in a derated condition is using:
Response:
- A. The resistor in a 2 watt application.
- B. The resistor in a 0.5 watt application.
- C. Two of the resistors in series.
- D. The resistor as a standby unit.
Answer: B
NEW QUESTION 146
A "fail-safe" requirement means:
Response:
- A. The system is safe from failure.
- B. The system will fall in a safe state.
- C. The system has safety devices.
- D. The safety systems cannot fail.
Answer: B
NEW QUESTION 147
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} {A, B2}
- C. {A}, {A, B1}
- D. {A, B1}, {B2}
Answer: B
NEW QUESTION 148
Eliminating hazards can be accomplished several ways. Which of the following does NOT eliminate a hazard?
Response:
- A. Contingency analysis
- B. Procedure analysis
- C. Fault-tree analysis
- D. FMEA
Answer: A
NEW QUESTION 149
A satellite has two redundant control systems, each has a failure rate (lambda) = 1×10 -6 failures/hour. If one of the systems fails, the failure rate for the remaining system increases to 2×10 -5 failures/hour.
What is the reliability of the redundant control systems at 175,000 hours?
Response:
- A. 0.7796
- B. 0.2507
- C. 0.8609
- D. 0.690
Answer: A
NEW QUESTION 150
Using complete field-based data, a reliability engineer has analyzed the reliability growth of a repairable system over the last 24 months. The analysis suggests a "no growth" condition, and that finding is reported to management.
Due to a pending multimillion dollar order, management requests that a line be drawn to show growth where none actually exists. The engineer's department manager directs the engineer to comply with management request.
According to the ASQ Code of Ethics, which of the following is an appropriate action for the engineer to take next?
Response:
- A. Request a meeting with a representative from Occupational Safety and Hazard Administration (OSHA)
- B. Initiate new product reliability growth tests.
- C. Advise management of the consequences to expect if the engineer's professional judgement is overruled.
- D. Ask the department manager for support in presenting the original data to upper management in a more convincing way.
Answer: C
NEW QUESTION 151
As the reliability engineer overseeing supplier development, you review the supplier's corrective action problem solving guidebook. It is a structured approach and you notice in the problem definition segment that there is a reference to "is data" and "is not data".
You recognize that they are using a technique promoted and championed by:
Response:
- A. Kaizen Principles.
- B. Deming's PDCA Cycle.
- C. Kepner-Tregoe.
- D. Kaoru Ishikawa.
Answer: C
NEW QUESTION 152
The prediction technique has obviously not always been effective quantitatively. There is often a wide difference between actual reliability and predicted reliability. Nevertheless, the reliability prediction technique permits:
Response:
- A. Separating out "the vital few" from the "trivial many".
- B. Spotlighting what has gone wrong with the program.
- C. Indicating which department is to blame.
- D. Estimating how good the product really is.
Answer: A
NEW QUESTION 153
Which of the following statistical distributions can be used to compare sample means?
Response:
- A. Normal.
- B. t test.
- C. Chi-square.
- D. Exponential
Answer: B
NEW QUESTION 154
Basic sources of reliability data are:
I. In-plant testing.
II. Field testing.
III. Operation by user.
Response:
- A. I, II, and III
- B. II and III only
- C. I and III only
- D. I and II only
Answer: A
NEW QUESTION 155
The ratio of the variances of two independent samples from normal distributions with a common true variance has what type of distribution?
Response:
- A. Beta
- B. t
- C. F test
- D. chi-square.
Answer: C
NEW QUESTION 156
Who should be chairperson of a design review committee?
Response:
- A. The reliability engineer.
- B. A senior member of management.
- C. The person best able to make decisions on a design.
- D. The chief designer.
Answer: C
NEW QUESTION 157
The House of Quality incorporates a correlation matrix roof. This describes the relationships between which of the following?
Response:
- A. Whats and hows.
- B. Competitive comparisons.
- C. Hows [design features].
- D. Whats [customer needs].
Answer: C
NEW QUESTION 158
The means of large samples from a population tend to be normally distributed around the population mean. This statement is TRUE according to which of the following theorems?
Response:
- A. Tchebysheffs
- B. Least squares.
- C. Central limit.
- D. Camp-Meidel.
Answer: C
NEW QUESTION 159
Censoring of data occurs when
Response:
- A. Product data are sequenced and questionable
- B. Product data are considered biased.
- C. Data collection is time-truncated.
- D. Questionable methods of data collection are used.
Answer: C
NEW QUESTION 160
Regarding computer hardware and software reliability, which of the available answers would NOT enhance software reliability?
I. Structured programming.
II. Redundant code programming.
III. Modular programming.
IV. Programming for fault tolerance.
Response:
- A. II and IV only
- B. All of the options will enhance software reliability
- C. I and III only
- D. II only
Answer: D
NEW QUESTION 161
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