MCQOPTIONS
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MCQOPTIONS
This section includes 3 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. |
For an inductor made from magnetic core, with two air gaps of equal length g, exciting coil with 1000 turns, A=5cm 5cm and g=1cm, what will be the coil inductance? |
| A. | 0.314H |
| B. | 0.157H |
| C. | 0.078H |
| D. | 0.628H |
| Answer» C. 0.078H | |
| 2. |
The voltage equation for the electrical system, in an electromechanical energy conversion device is as follows:vt=ir+Ldi/dt+i(dL/d r) r = (i)+(ii)+(iii) |
| A. | nWhat does the (ii) and (iii) terms represent respectively? |
| B. | transformer voltage term and speed/rotational voltage term |
| C. | speed/rotational voltage term and transformer voltage term |
| D. | force voltage term and transformer voltage term |
| E. | none of the mentioned |
| Answer» B. transformer voltage term and speed/rotational voltage term | |
| 3. |
Torque angle is the angle between ____________ |
| A. | rotor field axis and resultant field axis |
| B. | stator field axis and rotor field axis |
| C. | stator field axis and mutual field axis |
| D. | stator field axis and resultant field axis |
| Answer» C. stator field axis and mutual field axis | |