Higher Study | Electrical Machines

Practice Higher Study | Electrical Machines on Bissoy — browse topics below and open any question.

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Alternator and Synchronous Motors Transformer Single Phase Motor and Special Machines Three Phase Induction Motor DC Generators DC Motor

Questions

Which of the following is the main advantage of an auto-transformer over a two-winding transformer?

What is the purpose of providing an iron core in a transformer?

Which winding of the transformer has less cross-sectional area?

Why transformers connected in parallel should have same voltage ratio?

When the rotor speed, in a synchronous machine, becomes more than the synchronous speed during hunting, the damper bars develop

Which of the following application requires high starting torque?

In a given transformer for given applied voltage, losses which remain constant irrespective of load changes are

Which of the following statements is incorrect ?

An over-excited synchronous motor takes

A universal motor is one which

The speed of a universal motor is generally reduced by using

Which part of a motor needs maximum attention for maintenance?

Which of the following alternatives will be cheaper?

A no-load test is performed on a transformer to determine