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Examoogle • User • info@examoogle.com • EE-2024-8821
Chapter 1 of 12 • Page 1 of 248🔒 Protected PDF • Watermarked
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Replacement of worn out part can done during ___________
Routine maintenance
Breakdown maintenance
Periodic maintenance
Preventive maintenance
Breakdown maintenance
Quick Summary: Breakdown maintenance is a reactive strategy where equipment is repaired or parts are replaced only after a failure or functional breakdown has occurred. In this approach, no intervention is planned prior to the fault, and the equipment is run until it ceases to operate correctly.
Breakdown maintenance is a reactive strategy where equipment is repaired or parts are replaced only after a failure or functional breakdown has occurred. In this approach, no intervention is planned prior to the fault, and the equipment is run until it ceases to operate correctly.
MTTR=Number of RepairsTotal Maintenance Time — Represents the mean time to repair after a breakdown.
The principle relies on the 'run-to-failure' logic. Maintenance is triggered exclusively by an unplanned stoppage, necessitating the diagnostic identification of a worn-out component, its removal, and subsequent replacement to restore the system to its operational state.
Also known as 'Corrective Maintenance'.
High risk of cascading failures due to sudden stops.
Appropriate for non-critical assets where repair cost is lower than planned maintenance.
Usually involves higher emergency labor costs compared to scheduled tasks.
No upfront planning or inspection costs.
Reduces immediate maintenance budget overhead.
Unpredictable downtime impacting production.
Potential for severe secondary damage to healthy parts.
High overtime labor costs for emergency repairs.
Lighting fixtures in non-critical areas.
Low-cost, easily replaceable components.
Single-unit equipment with redundancy.
| Feature | Breakdown Maint. | Preventive Maint. |
|---|---|---|
Intervention timing | After failure | Before failure |
Routine maintenance is a regular service interval (e.g., lubrication).
Periodic maintenance is a time-based task, usually preventive.
Preventive maintenance involves scheduled inspections to avoid breakdowns.
B is correct — Replacement of worn-out parts in a 'run-to-failure' strategy occurs during Breakdown maintenance.
In competitive exams, distinguish 'Preventive' (scheduled based on time/usage) from 'Breakdown' (event-driven). If the question implies 'fixing a fault that already occurred', it is always Breakdown maintenance.