Electrical Engineering MCQs for competitive tests, job tests, university exams are provided on various Electrical and Electronics topics.
Electrical Power Transmission MCQs Part 16 Potential across the various discs of suspension string is different. This is primarily due to Potential across the various discs of suspension string is different. This is primarily due to: Correct answer: 2. Shunt capacitance Also see: String efficiency formula If safety factor is doubled, sag of line will … Read more
Electrical Power Transmission MCQs Part 15 Transposition of transmission line is carried out in order to Transposition of transmission line is carried out in order to: Correct answer: 1. Balance line voltage drop The shunt adimttance of transmission line is 5 μS. Its complex notation is The shunt adimttance of transmission line is 5 μS. … Read more
Electrical Power Transmission MCQs Part 14 Suspension type insulators are employed for voltages beyond Suspension type insulators are employed for voltages beyond: Correct answer: 4. 33 kV Find explanation here If span is increased, the sag If span is increased, the sag: Correct answer: 1. Increases If string efficiency is increased, voltage across disc nearest … Read more
A three-phase induction motor is widely employed in electrical industries. An induction motor is named so because the rotor voltage is induced in rotor windings rather than being physically connected by wires. Given below are top 10 Three Phase Induction Motor MCQs. The 3-phase induction motor is The 3-phase induction motor is Correct answer: 1. … Read more
Electrical Power Transmission MCQs Part 13 Sag in overhead transmission lines depends on Sag in overhead transmission lines depends on: Correct answer: 4. All of these If shunt capacitance decreases in string of suspension insulators, then string efficiency If shunt capacitance decreases in string of suspension insulators, then string efficiency: Correct answer: 1. Increases Explanation: … Read more
The slip of an induction motor when the rotor turns at synchronous speed is: Correct answer: 1. 0 Explanation: The formula for slip of induction motor is: When the rotor turns at sync speed ηsync = ηm & Slip = (ηsync = ηm )/ηsync = 0 Read More MCQs on Induction Motor
Transformer MCQs Part 26 In a transformer, the amount of copper in primary as compared to secondary is In a transformer, the amount of copper in primary as compared to secondary is: Correct answer: 3. Almost same Explanation: The number of turns on primary and secondary windings of a transformer depend on their respective voltages, … Read more
Single Phase Induction Motor MCQs Part 3 For same rating, the size of single-phase induction motor is around how many times that of a corresponding 3-phase induction motor For same rating, the size of single-phase induction motor is around how many times that of a corresponding 3-phase induction motor: Correct answer: 2. 1.5 times See … Read more
MCQ Suspension Type Insulators are made up of Suspension Types Insulators are made up of: Correct answer: 3. Any of above Explanation: Suspension-type insulators are used for voltage levels above 33 kV. These insulators are made of either glass or porcelain. Read the complete article on suspension-type insulators here The basic construction of suspension-type insulator … Read more
Suspension Type Insulators are used for Voltages Beyond: Correct answer: 5. 33 kV Explanation: The suspension-type insulator is used for voltage levels above 33 kV. Read the complete article on Suspension insulator here. It comprises of a number of porcelain discs that are connected in series by metal links in the form of string. Each … Read more