In a D.C. generator, the iron losses mainly take place in___________/
Correct answer: D. armature rotor
- A. yoke
- B. commutator
- C. armature conductors
- D. armature rotor
Explanation
Iron losses consist of hysteresis and eddy-current losses, and they occur mainly in the laminated armature core as it rotates through the magnetic field. The commutator and armature conductors mainly contribute to other losses.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Electrical Machines
1,061 free Electrical Machines MCQs from Electrical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Electrical Engineering questions like this
Electrical Engineering is on 2 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Electrical Machines questions
D.C. generators are installed near the load centres to reduce_____________?
Which of the following tests will be suitable for testing two similar D.C. series motors of large capacity ?
Hopkinson's test on D.C. machines is conducted at_______________?
D.C. generators are normally designed for maximum efficiency around_____________?
The condition for maximum efficiency for a D.C. generator is______________?
The total losses in a well designed D.C. generator of 10 kW will be nearly______________?