Electrical Engineering MCQs for competitive tests, job tests, university exams are provided on various Electrical and Electronics topics.
Electrical Engineering XYZ MCQs Steady state stability of a power system is improved by: Correct answer: 1. Using double circuit line instead of single circuit line Explanation: So, the correct answer is “Using double circuit line instead of single circuit line.”
Electrical Engineering XYZ MCQs In thermal power stations, economizer purpose is to: Correct answer: 4. Increase the thermal efficiency Explanation: An economizer in a thermal power station is a heat exchanger that is used to preheat the feedwater before it enters the boiler. The primary purpose of an economizer is to increase the thermal efficiency … Read more
Electrical Engineering XYZ MCQs Which of following is a disadvantage of phase modifiers: Correct answer: 4. All of these Explanation: Phase modifiers, particularly synchronous phase modifiers, are devices used in power systems to control the phase angle between voltage and current. While they offer certain advantages, they also come with disadvantages. Let’s break down each … Read more
Electrical Engineering XYZ MCQs Equal area criterion for stability is applicable to which type of motors: Correct answer: 2. Three phase synchronous motor Explanation: The correct answer to this MCQ is “Three-phase synchronous motor.” The Equal Area Criterion is commonly used to analyse and ensure stability in power systems involving synchronous machines.
Electrical Engineering XYZ MCQs Which of the following is a method of improving transient stability: Correct answer: 4. All of these Explanation: All of these is correct answer here. In summary, all of these methods contribute to improving transient stability by providing fast and effective control mechanisms to respond to disturbances and maintain the stability … Read more
Electrical Engineering MCQ XYZ Magnetic field in a DC generator is produced by: Correct answer: 1. Permanent magnets Explanation: In a DC generator, the magnetic field is typically produced by electromagnets rather than permanent magnets. Electromagnets are created by passing an electric current through a coil of wire, generating a magnetic field around the coil. … Read more
Electrical Engineering XYZ MCQs What is full form of MNP in Electrical Engineering: Correct answer: 4. Magnetic neutral plane Explanation: MNP in Electrical Engineering stands for Magnetic Neutral Plane. In electrical machines, especially in rotating machines like generators and motors, the magnetic field plays a crucial role. The magnetic neutral plane is a concept related … Read more
Electrical Engineering XYZ MCQs Armature reaction in DC generators results in: Correct answer: 3. Reduction in generated EMF Explanation: Armature reaction refers to the magnetic effect produced by the armature current in a DC generator. When current flows through the armature winding, it creates its own magnetic field. This magnetic field interacts with the main … Read more
Electrical Engineering XYZ MCQs In case of high current and low voltage rating which winding is employed to DC machine: Correct answer: 2. Wave winding Explanation: In wave winding, each coil spans only one commutator segment, and the coils are connected in series. Wave winding is generally suitable for machines with low current and high … Read more
Electrical Engineering XYZ MCQs In case of high voltage and low current rating which winding is employed in DC machines: Correct answer: 1. Wave winding Explanation: Wave winding is used in case of high voltage and low current rating which winding is employed in DC machines.