Electrical Engineering MCQs for competitive tests, job tests, university exams are provided on various Electrical and Electronics topics.
Electrical Engineering MCQ Maximum power capacity of transmission line can be increased by: Correct answer: 3. Either of these Explanation: The maximum power capacity of a transmission line can be increased by either decreasing the reactance value or increasing the voltage level, or a combination of both.
Electrical Engineering XYZ Which of the following statement is/are true regarding infinite line: Correct answer: 2. Both 1 and 2 Explanation: An infinite transmission line is a theoretical concept used in electrical engineering to analyze the behavior of transmission lines. Regarding the given options: Therefore, the correct answer is “Both 1 and 2.” The infinite … Read more
In case of distortion-less line which of following relationship holds true: Correct answer: 3. R/L = G/C Explanation: In the context of power transmission lines, a distortion-less line is characterized by having a constant propagation velocity and does not introduce any distortion to the transmitted signal. The parameters involved in the transmission line equations are … Read more
The VSWR of transmission line is directly proportional to: Correct answer: 3. Load impedance and inversely to characteristic impedance Explanation: VSWR stands for Voltage Standing Wave Ratio. Mathematically VSWR = (1+Γ)/(1-Γ) = ZL/ZO
High capacity generators and motors are generally of: Correct answer: 2. Star connected with grounding
Peterson coil is employed in power lines for: Correct answer: 1. Compensating arcing grounds Explanation: A Peterson coil, also termed as a zigzag grounding transformer or arc suppression coil, is employed in power systems to compensate for arcing grounds. Arcing grounds occur when there is a fault in the power system, leading to the flow … Read more
Electrical Engineering MCQ Pelton turbine is a: Correct answer: 1. Impulsive turbine
A moderator material should have: Correct answer: 2. Small atomic mass Explanation: In a nuclear reactor, a moderator is a material used to slow down neutrons produced in fission reactions. Slowing down neutrons increases the probability of their interaction with fissile isotopes (such as uranium-235), promoting sustained chain reactions. The effectiveness of a moderator depends … Read more
Electrical Engineering MCQ If a nuclear reaction is operating at constant power the multiplication factor is: Correct answer: 2. 1 Explanation: The multiplication factor, k, is mathematically defined as k = number of neutrons in one generation/number of neutrons in preceding generation
The specific speeds of Kaplan, Francis and Pelton turbines are in: Correct answer: 2. Decreasing order Explanation: