A loop antenna is a usually used for
Electrical Engineering MCQs on Electromagnetic Field Theory A loop antenna is a usually used for Correct Answer: 1. Direction finding
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Electrical Engineering MCQs on Electromagnetic Field Theory A loop antenna is a usually used for Correct Answer: 1. Direction finding
Electrical Engineering MCQs on Electromagnetic Field Theory Which of the below mentioned is multiband HF receiving antenna Correct Answer: 3. Log-periodic
Electrical Engineering MCQs on Electromagnetic Field Theory The virtual height of an ionospheric layer is: Correct Answer: 2. Higher than See below: Ionospheric Radio Wave Propagation
Electrical Engineering MCQ on Power Transmission Conductors used in high tension over-head transmission lines are: Correct answer: 1. Stranded Explanation: Solid wires are only used in rare cases when area of X-section is trivial (smaller). Application of solid wires for larger X-section and longer spans in impractical. Since it would produce mechanical fatigue and they … Read more
Electrical Engineering MCQs on Power Transmission With an increase in supply frequency the skin effect: Correct answer: 1. Increases Explanation: Skin effect depends on 4 factors:
Electrical Engineering MCQs on Power Transmission The bundled arrangement reduces: Correct answer: 4. All of these Explanation: Bundled conductors refers to the use of multiple conductors per phase rather of one single conductor per phase. One of the major advantage of using bundled conductors is its ability to reduce corona discharge. In case a single … Read more
Electrical Engineering MCQs on Power Transmission Corona effect in power transmission lines is affected by: Correct answer: 4. All of these Also see: Top 5 Factors Affecting Corona in Transmission Lines
Electrical Engineering MCQs on Power Transmission Part 27 As per BS 7671 the minimum resistance required during insulation test for 500 V DC voltage is As per BS 7671 the minimum resistance required during insulation test for 500 V DC voltage is Correct answer: 3. 1 MΩ See explanation here Capacitance of transmission line Capacitance … Read more
Electrical Engineering MCQs on Power Transmission As per BS 7671 the minimum resistance required during insulation test for 500 V DC voltage is Correct answer: 3. 1 MΩ Insulation resistance The insulation resistance is defined as the resistance in ohms of wires, cables and electrical equipment. It is the resistance between electrically insulated parts, such … Read more
Electrical Engineering MCQs on Power Transmission MCQs Part 26 Certain string of suspension insulator comprises of three discs. If disc nearest to conductor flashes over (breaks down), which of following is correct Certain string of suspension insulator comprises of three discs. If disc nearest to conductor flashes over (breaks down), which of following is correct: … Read more