Electrical Engineering MCQs for competitive tests, job tests, university exams are provided on various Electrical and Electronics topics.
Electrical Engineering XYZ MCQs Which braking is not possible in case of series motor: Correct answer: 3. Regenerative braking Explanation: The major disadvantage to regeneratively braking in this fashion is that the braking energy is only recoverable by the other motor(s) with their DC busses paralleled, and only at the exact same time one or … Read more
Electrical Engineering XYZ MCQ To save energy during braking which type of braking is preferred: Correct answer: 1. Regenerative braking Explanation: Regenerative braking is one of the braking methods used for AC Induction Motors Braking. Regenerative braking takes the concept of dynamic braking one step further, in converting the DC bus over-voltage into usable AC power to … Read more
Electrical Engineering XYZ MCQs Relative error is same as: Correct answer: Explanation: Relative error is a measure of the accuracy of a measurement compared to the true value. It is calculated as the ratio of the absolute error to the true value. The formula for relative error (RE) is given by: RE = Absolute Error/True … Read more
Electrical Engineering XYZ MCQ The analog ammeter is: Correct answer: 3. An indicating instrument Explanation: An analog ammeter is an indicating instrument. Indicating instruments provide a visual indication of the measured quantity without recording or controlling it. In the case of an analog ammeter, it indicates the electric current flowing in a circuit. The needle … Read more
Electrical Engineering XYZ MCQs Purely mechanical instruments cannot be used for dynamic measurements because they have: Correct answer: 4. All of these Explanation: All these factors contribute to the limitations of purely mechanical instruments when it comes to dynamic measurements, where a quick and accurate response to changes is essential.
Electrical Engineering XYZ MCQs Resolution of an instrument is defined as: Correct answer: 3. Smallest change in value that the instrument can detect or display Explanation: Resolution of an instrument refers to the smallest change in the quantity being measured that the instrument can detect or display. It indicates the precision of the instrument and … Read more
Electrical Engineering XYZ MCQs Deflection method direct measurements are most widely used as these are: Correct answer: 1. Most simple and least time consuming
Electrical Engineering XYZ MCQs The internal resistance of a milli-ammeter must be very low. This is primarily because of: Correct answer: 2. Minimum effect on the current in the circuit Explanation: The internal resistance of a milli-ammeter (or ammeter) must be very low primarily because it minimizes the effect on the current in the circuit … Read more
Electrical Engineering XYZ MCQs Null type recorders are: Correct answer: 1. Potentiometric recorders
Electrical Engineering XYZ MCQs The correct mathematical expression for acceleration: Correct answer: 4. Change in velocity/time Explanation: Acceleration is defined as the rate of change of velocity with respect to time. Mathematically, it is expressed as: