설비관리설비보전기사(구) · 2015년09월19일 · 39/100
39.유용도 함수(A)를 정확히 나타낸 수식은? (단, MTTR=mean time to repair, MTBF=mean time between failure, MTBM=mean time between maintenance, MTFF=mean time to first failure 이다.)
1
A = MTTR / MTTR+MTBF
2
A = MTFF / MTFF+MTTR
3
A = MTBF / MTBF+MTTR정답
4
A = MTBM / MTBM+MTTR