Sample CRE Questions

Check all our sample CRE questions here.

Sample Questions

TECH SPOT: SAMPLE CRE QUESTIONS (Part 15)

1. The Arrhenius model is used to predict part reliability. Which of the following are valid Arrhenius model statements?I. The rate of chemical reaction doubles ...
Sample Questions

TECH SPOT: SAMPLE CRE QUESTIONS (PART 14)

1. In a life test of 4 batteries, failures were observed after 10, 30, and 40 hours. The 4th battery was tested 75 hours without ...
Sample Questions

TECH SPOT: SAMPLE CRE QUESTIONS (PART 13)

1.Discrete random variable, X, follows the following probability distribution:     What is the Mean, Std Dev? A. 1.65, 13.4 B. 1.65, 3.65 C. 3.55,1.65 D. ...
Sample Questions

TECH SPOT: SAMPLE CRE QUESTIONS (PART 12)

1.  A stand‐by redundant system uses two identical units. The failure rate of each unit is 0.0007 failures per hour. What is the system  reliability ...
Sample Questions

TECH SPOT: SAMPLE CRE QUESTIONS (PART 11)

 1. Estimate the individual part failure rate given a base failure rate of  0.0333 failure/hour, a quality factor of 0.98 and an environmental stress factor ...
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