MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Machines knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A dc shunt motor is connected to the source through 3-point starter. Suddenly if we starter handle is moved fastly from off to on position, then the _________ |
| A. | motor will draw large current |
| B. | motor will not start |
| C. | motor will burn |
| D. | all of the mentioned |
| Answer» E. | |
| 2. |
The torque vs armature current of a differential compound motor in the strong field is? |
| A. | <a href="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q14a.png"><img alt="The torque vs armature current of differential compound motor in strong field - option a" class="alignnone size-full wp-image-160847" height="206" src="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q14a.png" width="282"/></a> |
| B. | <a href="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q14b.png"><img alt="The torque vs armature current of differential compound motor in strong field - option b" class="alignnone size-full wp-image-160848" height="238" src="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q14b.png" width="270"/></a> |
| C. | <a href="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q14c.png"><img alt="The torque vs armature current of differential compound motor in strong field - option c" class="alignnone size-full wp-image-160849" height="225" sizes="(max-width: 285px) 100vw, 285px" src="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q14c.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q14c.png 285w, https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q14c-100x80.png 100w" width="285"/></a> |
| D. | <a href="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q13c.png"><img alt="The torque vs armature current of differential compound motor in strong field - option d" class="alignnone size-full wp-image-160846" height="202" src="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q13c.png" width="247"/></a> |
| Answer» B. <a href="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q14b.png"><img alt="The torque vs armature current of differential compound motor in strong field - option b" class="alignnone size-full wp-image-160848" height="238" src="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q14b.png" width="270"/></a> | |
| 3. |
The torque characteristic is best described for a dc series motor with respect to armature current is? |
| A. | <a href="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q13a.png"><img alt="The torque characteristic for dc series motor with respect to armature current - option a" class="alignnone size-full wp-image-160844" height="207" src="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q13a.png" width="250"/></a> |
| B. | <a href="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q13b.png"><img alt="The torque characteristic for dc series motor with respect to armature current - option b" class="alignnone size-full wp-image-160845" height="201" src="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q13b.png" width="292"/></a> |
| C. | <a href="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q13c.png"><img alt="The torque characteristic for dc series motor with respect to armature current - option c" class="alignnone size-full wp-image-160846" height="202" src="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q13c.png" width="247"/></a> |
| D. | None of the mentioned |
| Answer» B. <a href="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q13b.png"><img alt="The torque characteristic for dc series motor with respect to armature current - option b" class="alignnone size-full wp-image-160845" height="201" src="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q13b.png" width="292"/></a> | |
| 4. |
How will the speed torque characteristic of a dc shunt motor and cumulatively compound dc motor perform at no load? |
| A. | <a href="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q8a.png"><img alt="Speed torque of dc shunt motor & compound dc motor perform at no load - option a" class="alignnone size-full wp-image-160839" height="205" src="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q8a.png" width="266"/></a> |
| B. | <a href="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q8b.png"><img alt="Speed torque of dc shunt motor & compound dc motor perform at no load - option b" class="alignnone size-full wp-image-160840" height="209" src="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q8b.png" width="276"/></a> |
| C. | <a href="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q8c.png"><img alt="Speed torque of dc shunt motor & compound dc motor perform at no load - option c" class="alignnone size-full wp-image-160841" height="205" src="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q8c.png" width="266"/></a> |
| D. | <a href="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q8d.png"><img alt="Speed torque of dc shunt motor & compound dc motor perform at no load - option d" class="alignnone size-full wp-image-160842" height="209" src="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q8d.png" width="276"/></a> |
| Answer» B. <a href="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q8b.png"><img alt="Speed torque of dc shunt motor & compound dc motor perform at no load - option b" class="alignnone size-full wp-image-160840" height="209" src="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q8b.png" width="276"/></a> | |
| 5. |
For a dc shunt motor of 5 kW, running at 1000 rpm, the induced torque will be ____________ |
| A. | 47.76 N |
| B. | 57.76 N |
| C. | 35.76 N |
| D. | 37.76 N |
| Answer» B. 57.76 N | |