A sewing machine has a mean time between failures of 296 hours and mean time to repair of 11 hours.In this case,the availability is ______.
A)96.4%
B)92.1%
C)89.3%
D)78.9%

Question

Quizplus · Accepted Answer

Availability can be calculated as:

Availability = MTBF / (MTBF + MTTR)

Given:

MTBF = 296 hours

MTTR = 11 hours

Substituting the above values in the formula,

Availability = 296 / (296 + 11)

Availability = 296 / 307

Availability = 0.964 or 96.4%

Therefore, the best choice is A) 96.4% as it correctly calculates the availability of the sewing machine.

A Sewing Machine Has a Mean Time Between Failures of 296