Sample CRE Questions

Check all our sample CRE questions here.

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 ...
TECH SPOT SAMPLE CRE QUESTIONS (Part 10)
Sample Questions

TECH SPOT: SAMPLE CRE QUESTIONS (Part 10)

1. The  lifetime  of  a  mechanical  lifter  is  normally  distributed  with  a  mean  of  100  hours  and  a  standard deviation of 3 hours. What is ...
TECH SPOT SAMPLE CRE QUESTIONS (PART 9)
Sample Questions

TECH SPOT: SAMPLE CRE QUESTIONS (PART 9)

1. The effects of failure rates on increased temperatures is called the: a. Thermal model b.  Full scale Model  c. Arrhenius Model   d. Derating effects ...
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