B.TECH - Semester 5 electrical technology Question Paper 2019 (feb)
Practice authentic previous year university questions for better exam preparation.
Sample Questions
- What is armature reaction? What are its effects and how it can be minimized ?
- Derive the emf equation of dc generator.
- Plot the electrical and mechanical characteristics of DC series motor and explain.
- Derive emf equation for a single phase transformer.
- Draw the equivalent circuit diagram of single phase transformer.
- Explain how a synchronous motor can be operated as a synchronous condenser.
- Show that the starting torque of a single phase induction motor is zero.
- Explain the working of a stepper motor.
- Why a 3-phase synchronous motor will always run at synchronous speed ? Explain.
- What are the types of motors used in traction system ? Explain.
- Draw the circle diagram for a 3 phase, 6 pole, 50 Hz 400 V star connected induction motor from the following data (line values): | No load test : | 400 V | 9 A | 1250 watts | | :--- | :--- | ---: | :--- | | Short circuit test : | 200 V | 50 A | 6930...