CMRT Equipment Reliability 5

Question 1

Reliability-Centered Maintenance (RCM) selects maintenance tasks based primarily on which criterion?

Accepted Answer

Consequences of the failure mode

Answer

Cost of the maintenance task

Answer

Age of the equipment

Answer

Manufacturer's recommended interval

Question 2

A Weibull shape parameter (β) of less than 1.0 indicates which type of failure pattern?

Accepted Answer

Infant mortality with decreasing failure rate

Answer

Wear-out failures with increasing failure rate

Answer

Random failures with constant failure rate

Answer

Fatigue failures with accelerating rate

Question 3

Which maintenance strategy should be applied to a failure mode with hidden function, low severity, and no time-based wear-out pattern?

Accepted Answer

Failure-finding task (scheduled inspection)

Answer

Time-based replacement

Answer

Condition-based monitoring

Answer

Run-to-failure

Question 4

In the context of equipment reliability, 'P-F interval' refers to:

Accepted Answer

The interval between the point of potential failure detection and functional failure

Answer

The time from planned maintenance to full restoration

Answer

The period between two consecutive preventive maintenance activities

Answer

The time from failure report to parts procurement

Question 5

Which reliability improvement technique involves redesigning a system so that a single component failure cannot cause total system loss of function?

Accepted Answer

Redundancy

Answer

Derating

Answer

Preventive replacement

Answer

FMEA

Question 6

Equipment criticality ranking is used in maintenance planning to:

Accepted Answer

Prioritize maintenance resources toward assets with the greatest risk impact

Answer

Determine the pay grade of maintenance technicians

Answer

Schedule all equipment for equal maintenance intervals

Answer

Calculate the depreciation schedule for capital assets

Question 7

A plant switches a centrifugal pump from scheduled time-based overhauls every 6 months to vibration-based monitoring with overhaul only when needed. This change represents a shift from:

Accepted Answer

Preventive to predictive maintenance

Answer

Corrective to preventive maintenance

Answer

Predictive to proactive maintenance

Answer

Run-to-failure to corrective maintenance