Solved question paper for EM-2 May-2021 (DIPLOMA 5th)
Solved Question Paper
Electrical machines-2 May-2021
PSBTE • DIPLOMA • Electrical Engineering • 5th • May-2021
EM-2 is the Electrical Machines-2 subject for Punjab State Board of Technical Education Diploma in Engineering, Electrical Engineering, 5th semester students. On this page, students can find subject-wise previous year question papers and old papers that help with revision, repeated questions, and understanding the exam pattern for EM-2. It is useful when preparing for semester exams and reviewing important topics from past papers. BRpaper is not the official website of the university or board and only helps students access exam preparation material and previous year papers for this subject.
These Questions are downloaded from www.brpaper.com. You can also download previous years question papers of 10th and 12th (PSEB & CBSE), B-Tech, Diploma, BBA, BCA, MBA, MCA, M-Tech, PGDCA, B-Com, BSc-IT, MSC-IT.
Solved Questions
Solved-
Draw and explain torque slip curves of three phase induction motor?Short Answer 5 Marks May-2021 • PSBTE DIPLOMA
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May 2022 The shape of the torque-slip curve of an induction motor is _______.
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May 2021 Explain the torque – slip curve of a 3-phase induction motor.
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Define slip and write the significance of slip?Short Answer 5 Marks May-2021 • PSBTE DIPLOMA
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Derive the relationship between copper loss and motor slip?Short Answer 5 Marks May-2021 • PSBTE DIPLOMA
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What are the causes of low power factor of three phase induction motor?Short Answer 5 Marks May-2021 • PSBTE DIPLOMA
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Explain construction of universal motor?Short Answer 5 Marks May-2021 • PSBTE DIPLOMA
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May 2022 What is the principle of operation of universal motor?
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Write note on hysteresis motor?Short Answer 5 Marks May-2021 • PSBTE DIPLOMA
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Why single phase induction motors are not self starting?Short Answer 5 Marks May-2021 • PSBTE DIPLOMA
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May 2022 Explain that basically a single phase induction motor is not a self starting motor.
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May 2021 A 3-phase synchronous machine is not self starting, why?
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Discuss the starting methods of three phase induction motor?Long Answer 10 Marks May-2021 • PSBTE DIPLOMA
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May 2021 Explain the starting methods of a synchronous motor.
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What is double cage rotor motor and also write its applications?Short Answer 10 Marks May-2021 • PSBTE DIPLOMA
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Explain the construction with diagram of three phase Squirrel cage motor?Long Answer 10 Marks May-2021 • PSBTE DIPLOMA
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May 2022 Explain the construction and working of three phase induction motor with diagram.
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May 2021 Explain construction of 3-phase squirrel cage induction motor.
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Explain the construction of shaded pole induction motor and describe its principle with working?Long Answer 10 Marks May-2021 • PSBTE DIPLOMA
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May 2022 Explain the working and construction of a single phase shaded pole motor?
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May 2022 Describe the construction & working of Shaded pole motor.
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Explain the speed control methods of three phase induction motor?Long Answer 10 Marks May-2021 • PSBTE DIPLOMA
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May 2022 What are the various methods of speed control of three phase induction motors? Explain any one method in detail.
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FAQ
Frequently Asked Questions
Answers about this subject, solved papers, and preparation.
01 What is EM-2 in PSBTE Diploma Electrical Engineering?
EM-2 is Electrical Machines-2, a 5th semester subject in the PSBTE Diploma in Engineering Electrical Engineering stream.
02 What can I find on this EM-2 subject page?
This page is meant to help students find EM-2 previous year question papers and old papers for exam practice and revision.
03 Do these EM-2 papers help with exam preparation?
Yes, previous year papers help students understand question trends, repeated topics, and the general exam pattern for the subject.
04 Are EM-2 question papers available as PDF?
The subject page is used to access available paper pages and question paper material, including PDF-style search intent where available.
05 Is BRpaper the official website for PSBTE?
No, BRpaper is not the official website of PSBTE or any board. It only helps students find previous year papers and study material.