C-201 Electrical sSystems 1 SACA Certification Study Guide Latest Update 2025-2026 155 Questions and 100% Verified Correct Answers Guaranteed A+
be able to interperate an electrical schematic which includes symbols - CORRECT ANSWER: on youtube look up engineering mindset- Single Phase Electricity Explained
- wiring diagram energy meter
be able to interpret the function and states of a basic electrical circuit - CORRECT
ANSWER: -study basic electrical circuits
calculate Parallel current - CORRECT ANSWER: Total current = sum of the currents through each resistor
calculate series current - CORRECT ANSWER: Total current = current through each
resistor
calculate the time to charge and discharge a capacitor - CORRECT ANSWER: time=RC R= resistance of circuit C= capacitance of capacitor in farads
calculate total capacitance - CORRECT ANSWER: add capacitances
calculate total capacitive reactance - CORRECT ANSWER: X_C = 1 / (2 * pi * f * C) X_c= capacitive reactance in ohms f= frequency in hertz c= capacitance in farads 1 / 3
calculate total load on an AC circuit with capacitors - CORRECT ANSWER: X_C = 1 / (2
- pi * f * C)
can you define and test a ground? - CORRECT ANSWER: a ground is a point in the
circuit that is connected to the earth. you can use a multimeter-If the resistance is too high, it may indicate that the ground connection is not providing adequate protection
Capacitor symbol - CORRECT ANSWER:
capacitors in power supply - CORRECT ANSWER: Capacitors are used in power
supplies to store electrical charge and to release it when the input voltage drops or when there is a sudden increase in current demand. This helps to smooth out fluctuations in the input voltage and to provide a steady flow of current to the load.
characteristics of current in a parallel circuit - CORRECT ANSWER: In a parallel circuit, the total current is the sum of the currents flowing through each branch. This is because the voltage across each branch is the same, but the current is divided among the branches according to their resistance values.
characteristics of current in a series circuit - CORRECT ANSWER: In a series circuit, the total current is the same at every point in the circuit. This is because the current flowing through each component in the circuit must be the same, since the same current flows through each component in a series circuit.
characteristics of resistance in a parallel circuit - CORRECT ANSWER: In a parallel circuit, the total resistance of the circuit is determined by the individual resistance values of the components in the circuit. However, the total resistance of a parallel circuit is always less than the resistance of the individual branches. (1/Rt = 1/R1 + 1/R2 + 1/R3 + ...)
characteristics of resistance in series circuits - CORRECT ANSWER: In a series circuit, the total resistance of the circuit is equal to the sum of the resistance values of the 2 / 3
individual components in the circuit. This means that if a higher resistance component is added to a series circuit, the total resistance of the circuit will increase.
circuit breaker symbol - CORRECT ANSWER:
Define capacitance - CORRECT ANSWER: Charge stored per unit potential difference
Define current - CORRECT ANSWER: flow of electrons (amps)
Define inductance. - CORRECT ANSWER: An induced voltage which is opposite in
direction to the applied voltage. henry (H)
Define power - CORRECT ANSWER: rate of energy transfer (P)
Define resistance - CORRECT ANSWER: the opposition of current flow (measured in
Ohms)
Define voltage - CORRECT ANSWER: an electromotive force or potential difference
expressed in volts.
effect of a capacitor in a DC circuit - CORRECT ANSWER: In a DC circuit, a capacitor acts as an open circuit when charged, meaning that it does not allow current to flow through it. When the capacitor is fully charged, no current will flow through it. However, when the capacitor is discharged, it acts as a short circuit, allowing current to flow freely.
effect of an inductor in an AC system - CORRECT ANSWER: an inductor acts as a
resistor to AC current. It opposes changes in current and causes the current to lag behind the voltage in the circuit. This property is known as inductive reactance, and is measured in ohms.
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