Question

45. Which of the following is equals to (Number of breakdowns / Available machine hours)?
(A) Maintenance effectiveness
(B) Frequency of breakdown
(C) Effectiveness of maintenance planning
(D) None of these
give me right option please​

Answer 1

Answer:

( c ) is a answer :::::::

Answer 2

Option (B)

Equals to (Number of breakdowns / Available machine hours) Frequency of breakdown.

Frequency of breakdown:

• This is a measurement of the average time between two breakdowns that determines the amount of system function non-disruption.
• Consider a machine tool that breaks down three times per year (3P/yr).
• The MTBF Referential for a three-times-a-year breakdown is: MTBF Réf =$1101.33$ hours.
• Which corresponds to a Réf (goal of maintenance services (DMI)) of –1 equal to MTBF, as follows: = $1/1101.33 = 9.08 10 -4$  (2) Assessment of Availability