The recommended number of insulators discs for a transmission line of 115 kV is | Power Transmission and Distribution MCQ#79
The recommended number of insulators discs for a transmission line of 115 kV is : 4-6 7-9 13-14 15-16 Correct answer: 2. 7-9
MCQs
The recommended number of insulator discs for a transmission line of 69 kV | Power Transmission and Distribution MCQ#78
The recommended number of insulators for transmission line of 69 kV: 4-6 10-12 13-14 15-16 Correct answer: 1. 4-6
Switchgear MCQ
Switchgear is defined as the apparatus used for switching electric current and apparatus. Since control and protection are two applications that are closely related to switching the switchgear refers to all such equipment that is used for switching, protecting, and controlling electricity and electrical circuits. Switchgear is composed of switches, fuses, and circuit breakers. Switchgear … Read more
If the number of turns of coil increase, the inductance will [Increase or Decreases] | Basic Electrical Engineering MCQ#18
If the number of turns of coil increase, the inductance: Decreases Increases Remains constant None of these Correct answer: 2. Increases Explanation of MCQ If the number of turns of coil increase, the inductance If the number of turns of coil increases, the inductance will increases. Let’s consider the air core coil inductor. The inductor … Read more
Which type of motor is used in Ceiling Fan – Electrical Machines MCQ#21
The type of motor used in Ceiling Fan: Universal motor Induction motor Synchronous motor DC Motor Correct answer: 2. Induction Motor Explanation: The ceiling fan uses a single-phase Induction motor. Very often it is a capacitor start and runs AC Motor. Alongside the single phase induction motor, the BLDC motor is also is popular nowadays … Read more
If the span is increased, the sag will [Increase or Decrease] | Power Transmission and Distribution MCQ#77
If the span is increased, the sag will: Increase Decrease Remain constant None of these Correct answer: 1. Increase More MCQ on Power Transmission and Distribution Decrease in sag of transmission lines impacts tension in which manner Effects of capacitance are neglected in Feeder is responsible for supplying power to Ferranti effect is referred to … Read more
Two series resistors of 5 and 10 ohms are connected in parallel to two series resistors of 10 and 5 ohms. Find the current across R2 | Basic Electrical Engineering MCQ#17
Two series resistors of 5 and 10 ohms are connected in parallel to two series resistors of 10 and 5 ohms. Find the current across R2. Solution: Ra = R1 + R2 = 15 ohms Rb = R3 + R4 = 15 ohms Using current divider rule, the current across Ra is: Ia = 5 … Read more
What is No-load slip value in induction motor | Induction Motor MCQ#14
No-load slip value percentage in an induction motor is: More than 50% About 30% Around 5% Less than 1% Correct answer: 4. Less than 1% Explanation: Slip in an induction motor is expressed mathematically by the formula: s = (ηs – ηr)/ηs where ηs = synchronous speed ηr = speed of rotor At no-load condition, the … Read more
What is this Electrical Engineering MCQ#3
What is this Electrical Engineering MCQ#3 Correct answer: 2. Force-sensitive resistor A force-sensitive resistor or force-sensing resistor is a resistor whose resistance changes when some force, mechanical pressure or mechanical stress is applied to it. Force-sensitive resistors let you detect the physical pressure, weight, mechanical pressure, squeezing and weight.
What is This Electrical Engineering MCQ#2
What is This Electrical Engineering MCQ Series MCQ#2: Correct answer: 2. Humistor Explanation & Working A Humistor or humidity detector is a type of variable resistor whose resistance changes/varies based on humidity. Humistors are of capacitive and impedance as well as resistive type. A resistive humidity sensor detects resistance changes of an element. It detects … Read more