Electrical Engineering MCQs for competitive tests, job tests, university exams are provided on various Electrical and Electronics topics.
Electrical Engineering XYZ Multiple Choice Question on Conductivity is reciprocal of Conductivity is reciprocal of Correct answer: 3. Resistivity Explanation: Resistivity (ρ) is an intrinsic property of a material that quantifies how strongly it resists the flow of electric current. It is the reciprocal of conductivity (σ) Mathematically: ρ = 1/σ
Electrical Engineering XYZ MCQ on Electric current in liquids is due to flow of with brief explanatory answer and solution. Electric current in liquids is due to flow of Correct answer: 3. Both of these Explanation: Electric current in liquids occurs primarily because of flow of charged particles. These charged particles can be either positive … Read more
An electrician connects one terminal of the megger to the conductor and the other terminal to the earth. It is evident that he is trying to find: Correct answer: 1. Earth fault Explanation: In current scenario, the electrician is troubleshooting earth fault. There are many cases, when the conductor of a cable comes in contact … Read more
An electrician connects the two terminals of the megger to red and yellow conductors of a 4-core cable with RYB and N conductors. It is evident that he is troubleshooting for: Correct answer: 3. Short circuit fault Explanation: In present scenario, the electrician is troubleshooting for short circuit fault.
The three conductors of the 3-core cable at far end are shorted and earthed. Afterwards the electrician measures resistance between each conductor and earth using megger. The Electrician is trying to identify: Correct answer: 2. Open circuit fault Explanation: Open circuit fault is defined as the fault in which there is a break in the … Read more
Electrical Engineering XYZ MCQ on Faults that generally happen on underground cables include Statement: Faults that generally happen on underground cables include: Correct answer: 4. All of these Explanation: Addressing these faults promptly is crucial to maintaining the reliability and safety of the electrical system. Fault location techniques, such as cable testing and diagnostic methods, … Read more
No electric current will flow between two charged bodies if they have same: Correct answer: 1. Potential Explanation: Electric current flows from a region of higher electric potential to a region of lower electric potential. In other words, it flows from a point of higher electric potential energy to a point of lower electric potential … Read more
Current entering the positive terminal of an element is mathematically given as: i=10cos 65πt Amps The electric power supplied by element at t=5 ms when voltage across element is 4i in watts is given as: Correct answer: 1. 109.2 watts Solution:
Ampere-second is the unit of: Correct answer: 1. Charge Explanation: Ampere-second (A·s) is the unit of electric charge.
Electrical Engineering XYZ MCQ on The dielectric used in variable capacitor is generally with explanation and video illustration of variable capacitors. The dielectric used in variable capacitor is generally: Correct answer: 1. Air Variable Capacitors are the capacitors whose capacitance may be intentionally and repeatedly changed mechanically or electronically. The figure below displays a mechanical … Read more