GTU · BE Electrical · Semester 7
GTU 3170909 AC Machine Design Old Question Papers PDF
Official Gujarat Technological University (GTU) old question papers PDF (Regular & Remedial) and step-by-step solved questions for AC Machine Design across 2025 – 2026 examinations.
11 questions GTU asked more than onceAsked in all 2 papers: What is Dispersion coefficient? Explain the effect of Dispersion coefficient on maximum output power factor.See listExam papers
Most repeated questions
11 questions GTU set in two or more of 2 papers, most repeated first. Tap a year to open that paper at the question.
What is Dispersion coefficient? Explain the effect of Dispersion coefficient on maximum output power factor.
What is Electrical and Magnetic Loading? Describe factors affecting Electrical and magnetic loading in electrical machines.
Design a 250KVA, 2000/400 Volt, 50 HZ, single phase, core type oil immersed self-cooled transformer with following data: Induced emf per turn = 15 Volt Max flux density Bm= 1.2 wb/m² Current density= 2.75 A/mm² Window space factor = 0.3 Height of the window Hw/ width of window Ww = 3 Assume 3 stepped core and Ai=0.6d², width of largest stamping a= 0.9d Determine the main dimensions of the core and yoke
Determine the main dimensions of a 12 MVA, 13.8KV, 50Hz, 1500 rpm, 3 star connected synchronous generator. The additional data is given as: Bav= 0.6wb/m², ac=42000 ac/m and peripheral speed= 80m/sec. Find also the maximum flux, the number of turns per phase and the number of conductors/slots if one conductor per slot is used, and. Assume kw =0.955
Explain the effect of harmonic induction torque and harmonic synchronous torque on the performance of 3-ph induction motor.
State the rules for the selection of rotor slots in 3-phase squirrel cage induction motor.
Explain steps for design of field winding of synchronous machine.
Explain significance of FEM in design problem.
Explain effect of change in frequency on losses of transformer.
State why a turbo alternator has smaller diameter and large length but hydro alternator has larger diameter and small length
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Discuss factors affecting the length of air gap on performance of a three phase induction motor.
Which branches take this subject
GTU's syllabus lists 3170909 for 1 branch. One set of papers serves all of them.
Semester 7, elective: 1 branch
Electrical Engineering
Other Semester 7 subjects
Common questions
Are these GTU 3170909 AC Machine Design papers valid for both Regular and Remedial exams?
Yes. Gujarat Technological University (GTU) follows the same 70-mark syllabus, exam blueprint, and 23-mark passing cutoff for both Regular and Remedial (ATKT/backlog) examinations. All 2 past exam sessions (2025 – 2026) serve as comprehensive preparation for either attempt.
How can I download GTU 3170909 AC Machine Design old question papers PDF?
You can download official GTU 3170909 original question paper PDFs directly from the table above with 1 click and zero deceptive ads or wait timers. Every paper also includes interactive online questions with AI study prompts.
What is the passing mark for GTU AC Machine Design (3170909)?
The external theory exam carries 70 marks. The minimum passing cutoff is 23 marks (33%). Exam duration is 2.5 hours.
What is the GTU exam pattern for 3170909?
The examination contains 5 main questions of 14 marks each, totaling 70 marks. Questions 2 through 5 provide internal OR choices, typically split into 3-mark, 4-mark, and 7-mark questions.