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SurendraReddy_ElectricTeacher

SurendraReddy_ElectricTeacher

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This is a public channel launched by Mr. Surendra Reddy. It is intended to post practice questions and answers on Electrical Machines subject. Call us: 9515694053 Visit: www.ohminstitute.com

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频道帖子
Supply frequency**

2
The no-load current drawn by a 11 kV, 50 Hz transformer is (1-j5) A. If the supply voltage changes to 75 Hz, the magnetizing reactance (in k-ohm) would be _
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🎉 A Proud Milestone for Our Institute! 🎉 🏆 7 of our students have been selected as Executive Trainees at NPCIL through the
🎉 A Proud Milestone for Our Institute! 🎉 🏆 7 of our students have been selected as Executive Trainees at NPCIL through their GATE scores! ⚡🇮🇳 This achievement is a reflection of their hard work, consistency, and determination, along with the dedicated guidance of our faculty. 🌟 Heartiest congratulations to all the selected students! May this be the beginning of a successful and impactful career in India's nuclear power sector. To all GATE aspirants: Your dream job is possible with the right strategy, consistent preparation, and unwavering dedication. Keep believing in yourself! 💙 Thank you to every student and parent who trusts us with their dreams. We remain committed to producing more success stories. #NPCIL #ExecutiveTrainee #GATE #GATE2026 #ElectricalEngineering #Engineer #GovernmentJobs #SuccessStory #GATEPreparation #DreamJob #Electrical #FutureEngineers #ProudMoment
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4
A 500 V DC shunt motor has a starting current of 250 A and full load current of 50 A. The mechanical power developed at full-load will be _. Neglect the rotational losses.
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5
If the load connected on a 3-phase, 4-pole, 50 Hz induction motor is equal to it's breakdown capacity, then the operating slip will be ___. Consider the standstill rotor impedance as (1+j5) ohm/phase.
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https://youtu.be/rHAkIZ9-nCg?si=QLre4Xe6vj9lBT1e
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https://www.apspdcl.in/files/pdf/FINAL%20WEBSITE%20NOTIFICATION%20OF%20AEEs%20RECRUITMENT.pdf
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8
The operating slip of a 3-phase, 400 V, Y-connected, 50 Hz, 2-pole induction motor is 0.06 and it's rotor voltage per phase at this slip is 10 V. What would be the turns ratio of this motor?
3 043
9
The magnetizing reactance of a transformer is independent of ____
3 140
10
https://www.youtube.com/live/SsH2iFqqF9A?si=QRoLltjXVl9qeMgR
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11
The short circuit test details of a 1000V, 20 kVA transformer is 50V, rated current, 600 W. What would be the % voltage regulation at full-load, ZPF leading power factor?
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https://www.youtube.com/live/87tq5b-padY?si=QkV389dbjJlAM1dv
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13
Is it wise to leave a PSU job for an engineering position in a State Electricity Department?
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14
The starting current drawn by a 400 V DC motor is 200 A and it's full load current is 20 A. What would be the value of back emf at an armature current of 15 A?
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15
Managing time effectively during exam preparation is essential for success. Here are some of the best methods to help: 1. Create a Study Schedule: Plan your time by creating a realistic schedule that includes all subjects/topics. Allocate more time for challenging areas and ensure regular breaks. 2. Set Priorities and Goals: Prioritize topics based on their importance and difficulty. Set clear, achievable goals for each study session to stay focused. 3. Use the Pomodoro Technique: Study for 25 minutes, then take a 5-minute break. After four cycles, take a longer break. This method helps maintain focus and prevents burnout. 4. Break Down Topics: Break complex topics into smaller sections to make them more manageable. Focus on mastering one section before moving to the next. 5. Practice with Timed Tests: Regularly test yourself under exam conditions. This not only improves time management but also builds confidence. 6. Limit Distractions: Find a quiet study space, turn off notifications, and avoid social media during study time. 7. Revise Regularly: Dedicate time each day for review to reinforce learning. Avoid cramming, as it’s less effective and increases stress. 8. Take Care of Health: Rest, nutrition, and exercise are crucial. A clear mind and a healthy body improve focus and memory. 9. Reflect and Adjust: At the end of each day or week, reflect on what’s working and adjust your plan if needed.
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16
A separately excited DC generator is feeding a 10 kW load with an armature copper loss of 400 W. The induced emf is 500 V. What would be the terminal voltage of this generator?
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17
Formula for competitive exams: Learn → Revise → Practice → Test → Analyze → Repeat
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18
The slip speed of a 6-pole induction generator is 300 rpm and its stator frequency is 50 Hz. It's rotor speed in rpm would be ___
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19
The value of interpole MMF in a DC machine is ____
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