Electrical Engineering MCQ on Electric Power Transmission and Distribution. Electrical power transmission and distribution or PT&D refers to the process of carrying electricity from the generation stations and distributing it to consumers. Which one of the following is not an advantage of High voltage AC Power transmission Which one of the following is not an … Read more
Statement: A Circuit Contains Three voltage sources of 10 V, 10 V, and 5 V in series. The overall voltage Vab is: 15 V -15 V -25 V 25 V Correct answer: 2. -15 V Vab = -10 V – 10 V + 5 V = -15 V
High voltage engineering deals with the study of transient voltage and currents at high voltage levels. The high voltage testing of electrical equipment (such as cables, transformers, insulators) is also a part of the study of HV Engineering. High Voltage Engineering MCQ High frequency and impulse currents are measured using: Inductive elements Hall effect devices … Read more
Increasing the frequency will cause the string efficiency of suspension insulators to: Increase Decrease None of these Correct answer: 3. None of these
The greater the value of K, the _______ is the string efficiency: Greater Lesser Any of these None of these Correct answer: 2. Lesser
In suspension type insulator the potential drop is: Maximum in topmost disc Maximum in lowest disc Maximum in central disc Evenly distributed in discs Correct answer: 2. Maximum in lowest disc
Charging current is not the same through all the discs of the string due to: Mutual capacitance Shunt capacitance Both of these None of these Correct answer: 2. Shunt capacitance
The non-uniform voltage distribution across units of suspension type insulators string is due to: Earth cable connected above tower Stray capacitance between units and body of tower Three phase electricity All of these Correct answer: 2. Stray capacitance between units and body of tower
The recommended number of insulators for transmission line of 345 kV: 4-5 5-7 8-10 18 Correct answer: 4. 18
The recommended number of insulators for transmission line of 138 kV: 4-5 5-7 8-10 20-25 Correct answer: 3. 8-10