Electrical Engineering MCQs for competitive tests, job tests, university exams are provided on various Electrical and Electronics topics.
Electrical Engineering XYZ MCQ For complete protection of 3-phase system from short circuit faults minimum number of relays required are: Correct answer: 2. Three Explanation: For complete protection of 3-phase system from the short circuit faults minimum number of relays required are three. In which two are the over current relays which are connected in … Read more
Electrical Engineering XYZ MCQ If all the sequence voltages at the fault point in a power system are equal, then the fault point is best categorized as: Correct answer: 1. LLG
Electrical Engineering XYZ MCQ Proximity effect depends on: Correct answer: 4. All of these Explanation: The proximity effect refers to a phenomenon in which the distribution of current in a conductor is affected by the presence of nearby conductors. The factors that influence the proximity effect include: Therefore, all three factors – frequency, relative permeability, … Read more
Electrical Engineering XYZ MCQ Proximity effect is more in case of: Correct answer: 2. Power cables Explanation: The Proximity Effect refers to the phenomenon in electrical conductors where the current distribution is uneven when conductors are placed close to each other. This effect becomes more significant at higher frequencies. In the context of the given … Read more
Electrical Engineering XYZ MCQ To reduce the radio interference transposition is carried out in case of: Correct answer: 3. Both of these Explanation: Transposition in power lines is indeed primarily done to reduce transmission losses and improve the balance of the system. In communication cables, transposition is utilized to reduce coupling between circuits within the … Read more
Electrical Engineering MCQ The number of strands in case of ACSR conductor for 3 layer transmission line: Correct answer: 4. 19 Explanation: Total number of strands N = 3x² – 3x + 1 Where, x = Number of layers = 3 Total number of strands N = 3×3² – 3×3 + 1 = 19
Electrical Engineering MCQ If scarcity of a 5 bus transmission line is 0.4. The number of transmission lines will be: Correct answer: 4. 5 Explanation: Total number of transmission lines (t) = (n2(1-x)-n)/2 = 5
Electrical Engineering MCQ In a 4 bus,4×4 Y bus matrix the number of non zero elements are 12. Find the number of transmission lines: Correct answer: 1. 4 Explanation: 1. 4
Electrical Engineering MCQ Which of the following methods is used for reactive or voltage compensation: Correct answer: 4. All of these
Which of following is an objective of power system: Correct answer: 3. Both of these Explanation: Therefore, both of these objectives are important considerations in the design, operation, and management of a power system.