1) What is the unit of electrical resistance? a)  Ampere b) Ohm c) Volt d) Watt 2) What does Ohm's Law state? a) Voltage is the product of current and resistance. b) Power is equal to voltage multiplied by current. c) Resistance is the sum of voltage and current. d) Current is inversely proportional to resistance. 3) What is the primary function of a circuit breaker? a) To increase current flow b) To stabilize voltage levels c) To protect the circuit from overloading d) To provide continuous power supply 4) What is the standard voltage supply in residential areas in the Philippines? a) 120V b) 220V c) 110V d) 440V 5) What is the first step in troubleshooting an electrical circuit? a) Replace the faulty component b) Turn off the power supply c) Test the circuit breaker d) Check the voltage 6) Which tool is essential for checking electrical continuity? a) a) Screwdriver b) b) Multimeter c) c) Wire stripper d) d) Pliers 7) What type of conduit is commonly used for indoor wiring in the Philippines? a) a) Rigid metal conduit b) b) PVC conduit c) c) Flexible conduit d) d) EMT conduit 8) What does a continuity test determine? a) a) Voltage stability b) b) Proper grounding c) c) Unbroken connection in a circuit d) d) Current load capacity 9) What should be done if a breaker frequently trips a) a) Replace it immediately b) b) Reduce the load on the circuit c) c) Tape the breaker switch to stay on d) d) Use a larger breaker 10) Which of the following is a symptom of an overloaded circuit? a) a) Flickering lights b) b) Increased resistance c) c) Loud buzzing sound d) d) Consistent voltage drop 11) What does PEC stand for in electrical installation? a) a) Philippine Electrical Corporation b) b) Philippine Electric Code c) c) Power Efficiency Code d) d) Professional Electrician’s Certification 12) What is the minimum height for installing electrical outlets from the floor in residential buildings? a) a) 200 mm b) b) 300 mm c) c) 500 mm d) d) 600 mm 13) What is the main purpose of a junction box? a) a) To house electrical outlets or switches b) b) To protect spliced wires c) c) To support light fixtures d) d) To serve as a circuit breaker 14) What is the typical diameter of a standard electrical wire for lighting circuits in the Philippines? a) a) 1.0 mm² b) b) 1.5 mm² c) c) 2.5 mm² d) d) 4.0 mm² 15) Which tool is used to bend conduits? a) a) Pipe cutter b) b) Pipe bender c) c) Wrench d) d) Hammer

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