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Examoogle • User • info@examoogle.com • EE-2024-8821
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Servicing can be done during___________
Routine maintenance
Breakdown maintenance
Periodic maintenance
Preventive maintenance
Breakdown maintenance
Quick Summary: Servicing is a corrective activity typically performed during breakdown maintenance to restore the operational integrity of equipment after a fault has occurred. While preventive maintenance focuses on inspection and upkeep to avoid failure, servicing in the context of breakdown maintenance specifically addresses the repair or replacement of faulty components.
Servicing is a corrective activity typically performed during breakdown maintenance to restore the operational integrity of equipment after a fault has occurred. While preventive maintenance focuses on inspection and upkeep to avoid failure, servicing in the context of breakdown maintenance specifically addresses the repair or replacement of faulty components.
Availability=MTBF+MTTRMTBF — where MTBF is Mean Time Between Failures and MTTR is Mean Time To Repair
Downtime=FailureTime+ServicingTime+RestorationTime — the total duration of equipment unavailability
In breakdown maintenance (also known as corrective maintenance), the system operates until failure occurs. Upon failure, diagnostic tests are performed to isolate the fault, followed by 'servicing' (repairing or replacing parts) to bring the system back to its functional state. This reactive approach relies on the availability of spare parts and skilled personnel to minimize downtime.
Breakdown maintenance is inherently reactive compared to preventive or predictive maintenance.
Servicing during breakdown involves troubleshooting and restorative repair tasks.
This method is often chosen for non-critical systems where the cost of failure is lower than the cost of constant monitoring.
Effective servicing during breakdown requires a robust inventory management system for spare parts.
No immediate requirement for costly monitoring equipment.
Simple to implement for low-priority infrastructure.
Reduces the necessity for routine idle-time inspections.
High risk of unexpected production stoppages.
Potential for secondary damage to equipment if failure triggers catastrophic failure.
Higher emergency repair costs due to potential overtime labor.
Non-critical lighting circuits in buildings.
Low-cost domestic equipment with minimal safety risks.
Redundant systems where backup exists for immediate failover.
Periodic maintenance refers to maintenance tasks done at predetermined intervals (e.g., oil changes).
Preventive maintenance is proactive, scheduling work to prevent failures before they occur based on age or usage.
Option B (Breakdown maintenance) implies that servicing is triggered by the breakdown itself.
B is correct — Servicing in this context is a reactive action taken to rectify a failure that has already occurred in the system.
Always differentiate between 'preventive' (scheduled, avoids failure) and 'breakdown' (unscheduled, fixes failure) in power system maintenance questions.