MCQOPTIONS
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MCQOPTIONS
This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Dc Machines knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
To get the speed of DC motor below the normal speed without wastage of electrical energy we use __________________ |
| A. | Ward Leonard control |
| B. | Rheostatic control |
| C. | Any of the Ward Leonard or rheostatic method can be used |
| D. | Not possible |
| Answer» B. Rheostatic control | |
| 2. |
Starting gear used in Ward Leonard method___________ |
| A. | Is of small size |
| B. | Is of large size |
| C. | Size depends on application |
| D. | Is absent |
| Answer» E. | |
| 3. |
Efficiency of Ward Leonard method is ____________ |
| A. | Higher than rheostatic control method but lower than shunted field control method |
| B. | Lower than rheostatic control method |
| C. | Higher than rheostatic control method and shunted field control method |
| D. | Depends on load |
| Answer» D. Depends on load | |
| 4. |
In Ward Leonard speed control method for increasing the speed of the motor ______________ |
| A. | Reduce armature voltage |
| B. | Increase armature voltage |
| C. | Increase field current |
| D. | Decrease field current |
| Answer» E. | |