The main disadvantage of the Ward-Leonard control method is______________?
Correct answer: D. all of the above
- A. high initial cost
- B. high maintenance cost
- C. low efficiency at Hght loads
- D. all of the above
Explanation
Ward-Leonard control requires a motor-generator set, giving high initial and maintenance costs and poor efficiency at light loads because the set continues to run. Thus all three listed disadvantages apply.
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
The hysteresis loss in a D.C. machine least depends on____________?
In a D.C. generator all of the following could be the effects of iron losses except___________?
The losses occurring in a D.C. generator are given below. Which loss is likely to have highest proportion at rated load of the generator ?
In Ward-Leonard control the lower limit of speed is imposed by________?
For constant torque drive which speed control method is preferred ?
Ward-Leonard control is basically a____________?