Electrical Engineering questions with answershere are 10 more multiple-choice questions related to electrical power systems:What is the purpose of a power factor correction capacitor in an electrical power system? A) To increase the system’s power factor B) To decrease the system’s power factor C) To regulate voltage D) To store electrical energy Answer: A) To increase the system’s power factorWhat is the primary advantage of a three-phase power system over a single-phase power system? A) Greater voltage stability B) Higher efficiency C) Lower cost D) All of the above Answer: D) All of the aboveWhat is the purpose of a current transformer in an electrical power system? A) To measure current flow in a circuit B) To measure voltage in a circuit C) To regulate voltage D) To store electrical energy Answer: A) To measure current flow in a circuitWhat is the formula for calculating real power in a three-phase system? A) P = VI B) P = V^2/R C) P = 3VILcos(θ) D) P = V^2/Rcos(θ) Answer: C) P = 3VILcos(θ)What is the purpose of a synchroscope in an electrical power system? A) To measure current flow in a circuit B) To measure voltage in a circuit C) To synchronize two generators in parallel D) To regulate voltage Answer: C) To synchronize two generators in parallelWhat is the function of a step-down transformer in an electrical power system? A) To step up voltage for transmission B) To step down voltage for distribution C) To regulate voltage D) To store electrical energy Answer: B) To step down voltage for distributionWhat is the purpose of a shunt reactor in an electrical power system? A) To compensate for inductive loads B) To compensate for capacitive loads C) To regulate voltage D) To store electrical energy Answer: A) To compensate for inductive loadsWhich of the following is a type of electrical power distribution system? A) Radial system B) Ring system C) Both A and B D) Neither A nor B Answer: C) Both A and BWhat is the function of a surge arrester in an electrical power system? A) To regulate voltage B) To protect against lightning strikes and power surges C) To store electrical energy D) To measure current flow in a circuit Answer: B) To protect against lightning strikes and power surgesWhich of the following is a common method for frequency control in an electrical power system? A) Load shedding B) Automatic generation control C) Voltage regulation D) All of the above Answer: B) Automatic generation control