C-201 Electrical Systems 1 SACA Certification Questions and Answers Latest Version Already Passed

C-201 Electrical Systems 1 SACA Certification Questions and Answers Latest Version Already Passed What does DC stand for in electrical circuits? Direct Current What tool is used to measure voltage in a circuit? Voltmeter What type of wire is typically used in low-voltage control systems? Stranded copper wire What is the unit of electrical resistance? Ohm What does an open circuit prevent from happening? Current flow 2 What type of device opens and closes a circuit manually? Switch What is the purpose of a fuse in an electrical system? To protect the circuit from overcurrent What happens to current in a series circuit when one load is disconnected? The current stops What symbol represents ground in a schematic diagram? A line with three descending horizontal bars What component stores electrical energy in a circuit? Capacitor What does AC stand for in electricity? Alternating Current 3 What device is used to step voltage up or down in a circuit? Transformer What happens to voltage in a parallel circuit? Voltage stays the same across each branch What electrical component resists current flow? Resistor What does a multimeter measure besides voltage? Current and resistance What wire color is commonly used for ground in electrical systems? Green What causes circuit breakers to trip? Overcurrent or short circuit 4 What is the symbol for a resistor in a schematic? A zigzag line What device is used to control current flow using a magnetic field? Relay What is created when current flows through a conductor? Magnetic field What is the standard frequency of AC power in North America? 60 Hz What tool is used to strip insulation from wires? Wire stripper What happens if two wires touch and bypass the load? A short circuit