1. Which of the following statements best describes scheduled maintenance?
(A) It is performed only when a system or equipment breaks down unexpectedly.
(B) It focuses solely on fixing faults and malfunctions after they occur.
(C) It involves routine inspections and repairs carried out at predetermined intervals.
(D) It is a reactive maintenance approach that emphasizes immediate repairs.
2. What is the primary objective of preventative maintenance?
(A) To address issues only after they cause significant disruptions in operations.
(B) To maximize equipment uptime and minimize unplanned breakdowns.
(C) To eliminate all potential failures in a system or equipment.
(D) To save costs by avoiding any maintenance activities altogether.
3. Which of the following is an example of preventative maintenance?
(A) Replacing a faulty electrical component after it fails.
(B) Cleaning and lubricating machinery on a monthly basis.
(C) Repairing equipment immediately upon a breakdown.
(D) Conducting a complete overhaul of a system every five years.
4. What are minor repairs in the context of electrical systems?
(A) Extensive repairs that involve significant downtime.
(B) Quick fixes that require minimal time and resources.
(C) Repairs performed only by specialized technicians.
(D) Repairs that are unnecessary for maintaining system functionality.
5. How should a breakdown in an electrical system be addressed?
(A) By continuing operations until a major failure occurs.
(B) By immediately contacting a professional technician.
(C) By conducting routine maintenance to prevent further breakdowns.
(D) By ignoring the issue until it resolves itself.
6. MTTR refers to:
(A) The total time a system or equipment operates without any failures.
(B) The average time taken to repair a failed system or equipment.
(C) The duration between scheduled maintenance activities.
(D) The time it takes for a system or equipment to completely fail.
7. Which of the following best describes MTBF?
(A) The average time it takes to diagnose a system failure.
(B) The time required to perform routine maintenance on a system or equipment.
(C) The average time between two consecutive breakdowns of a system or equipment.
(D) The time taken to replace a failed component with a new one.
8. Which of the following is a fundamental safety rule to observe during electrical repair work?
(A) Working alone without any supervision.
(B) Wearing appropriate personal protective equipment (PPE).
(C) Using damaged or frayed electrical cables.
(D) Ignoring safety guidelines to complete the repair quickly.
9. Why is it important to de-energize electrical equipment before conducting repairs?
(A) To save energy and reduce utility costs.
(B) To prevent electric shock or electrocution hazards.
(C) To avoid interruptions in electrical supply.
(D) To ensure the repair is completed faster.
10. What is the primary function of an AVR in an electrical system?
(A) To control the flow of electric current through a circuit.
(B) To regulate and maintain a stable voltage output.
(C) To protect electrical equipment from power surges.
(D) To convert AC voltage to DC voltage.
11. Which component of an AVR is responsible for monitoring and adjusting the voltage?
(A) Voltage regulator
(B) Capacitor
(C) Rectifier
(D) Transformer
12. What is the purpose of using an AVR in electrical generators?
(A) To increase the fuel efficiency of the generator.
(B) To reduce the noise level of the generator.
(C) To regulate and stabilize the output voltage of the generator.
(D) To synchronize multiple generators in parallel operation.