Six high-power drills are tested for 150 hours each. One failed at 45 hours; all others completed the test. Calculate FR(%), FR(N) and MTBF.

Name: Six high-power drills are tested for 150 hours each. One failed at 45 hours; all others completed the test. Calculate FR(%), FR(N) and MTBF.
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The Answer of Six high-power drills are tested for 150 hours each. One failed at 45 hours; all others completed the test. Calculate FR(%), FR(N) and MTBF.

Six High-Power Drills Are Tested for 150 Hours Each