Question: QUESTION 29 29. 25 air-conditioning systems designed for use by astronauts in the SpaceX Crew Dragon spacecraft were operated for 1,000 hours at a NASA

QUESTION 29 29. 25 air-conditioning systems
QUESTION 29 29. 25 air-conditioning systems
QUESTION 29 29. 25 air-conditioning systems designed for use by astronauts in the SpaceX Crew Dragon spacecraft were operated for 1,000 hours at a NASA test facility. Three of the systems failed during the test-one after 100 hours, one after 200 hours, and the other after 500 hours. Use this information to answer the following four questions What is the percentage of failures? A 10N B.213 C12 D. 15 E11 QUESTION 30 30. What is the number of failures per operating hour A .00013 B...13 C13 D..000106 E12 QUESTION 31 31. What is the Mean Time Between Failures, or MTBF? A. 9434 hours B. 7600 hours C. 6700 hours D. 7000 hours E. 9000 hours QUESTION 32 32. How many failures would be expected during an 8-day space trip? A..015 B..052 C..020 D..025 E..0025 QUESTION 33 Click Save and Submit to save and submit. Click Save All Answers to save all answers

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