Electrical Engineering MCQs on Synchronous Motor Part 4
Contents
- 1 A change of load on synchronous motor will not result in change of
- 2 In synchronous motor if armature field axis is ahead of flux axis in direction of rotation, the machine is operating as
- 3 The full load slip of synchronous motor is
- 4 The rotor Cu losses in synchronous motor are met by
- 5 If a synchronous motor is pulled out of synchronism, the stator current
A change of load on synchronous motor will not result in change of
A change of load on synchronous motor will not result in change of:
- Speed
- Power factor
- Armature current
- Torque angle
Correct answer: 1. Speed
In synchronous motor if armature field axis is ahead of flux axis in direction of rotation, the machine is operating as
In synchronous motor if armature field axis is ahead of flux axis in direction of rotation, the machine is operating as:
- Synchronous motor
- Synchronous generator
- Asynchronous motor
- Asynchronous generator
Correct answer: 1. Synchronous motor
The full load slip of synchronous motor is
The full load slip of synchronous motor is:
- Zero
- 1%
- 5%
- 10%
Correct answer: 1. Zero
The rotor Cu losses in synchronous motor are met by
The rotor Cu losses in synchronous motor are met by:
- Armature input
- DC Source
- Motor input
- Supply lines
Correct answer: 2. DC Source
If a synchronous motor is pulled out of synchronism, the stator current
If a synchronous motor is pulled out of synchronism, the stator current:
- Is increased to a greater extend
- Is decreased to a greater extend
- Becomes zero
- Remains unchanged
Correct answer: 1. Is increased to a greater extend
More MCQs on Synchronous Motor:
- Synchornous Motor MCQs
- Synchornous Motor MCQs Part 1
- Synchornous Motor MCQs Part 2
- Synchornous Motor MCQs Part 3