What type of maintenance is most effective?

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ALP CBT 2 Fitter Previous Paper: Held on 21 Jan 2019 Shift 1
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  1. Shutdown Maintenance
  2. Corrective Maintenance
  3. Breakdown maintenance
  4. Preventing Maintenance

Answer (Detailed Solution Below)

Option 4 : Preventing Maintenance
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Explanation:

Maintenance of machinery means its upkeep and repair in the event of a breakdown.

It also includes the renewal and replacement of damaged parts.

Breakdown maintenance

  • It is a type of maintenance used for equipment after equipment break down or malfunction is often the most expensive

Preventive maintenance

  • It is regularly performed on a piece of equipment to lessen the likelihood of it failing.
  • It is performed while the equipment is still working so that it does not break down unexpectedly.
  • It is a most effective maintenance

Predictive maintenance

  • It is first to predict when equipment failure might occur, and secondly, to prevent the occurrence of the failure by performing maintenance.
  • Monitoring for future failure allows maintenance to be planned before the failure occurs.

Shutdown Maintenance

  • Shutdown Maintenance is maintenance that can only be performed while equipment is not in use. 
  • Shutting down machinery can be costly, but sometimes due to the nature of the defective part/machine, shutdown maintenance is the only viable maintenance procedure.

Corrective Maintenance

  • This type of maintenance is carried out to correct errors that were not discovered during the product development phase.

Perfective Maintenance

  • This type of maintenance is carried out to enhance the functionalities of the system based on the customer’s request.

Adaptive Maintenance

  • Adaptive maintenance is usually required for porting the software to work in a new environment such as work on a new computer platform or with a new operating system

Preventive maintenance consists of:

  • Proper plans and installation of machine/equipment
  • Periodic inspection of the plant, equipment, and machines
  • Repetitive servicing, upkeep, and overhauling
  • Adequate lubrication, cleaning, and painting
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