CWEA Electrical/Instrumentation (E/I) Grade 1 Practice Test 2026 - Free Electrical/Instrumentation Practice Questions and Study Guide

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Which statement best describes the efficiency of preventive maintenance for plant equipment?

It eliminates the need for any future maintenance

It minimizes downtime by scheduling major overhauls

Periodic inspection of facilities to discover developing defects that could lead to equipment failure

Preventive maintenance is about acting before problems show up. Its efficiency comes from periodic inspections that uncover developing defects before they cause equipment failure, so repairs can be planned and performed before a breakdown occurs. This proactive approach reduces unexpected downtime and helps extend the life of equipment. It doesn’t promise to eliminate maintenance entirely, and it isn’t solely about scheduling major overhauls or focusing on energy efficiency. Regular checks catch wear and faults early, enabling controlled, cost-effective maintenance.

It only focuses on energy efficiency

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