MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 62 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
_ _ __ _Senses the physical changes occur in the surrounding and converting it into a readable quantity. |
| A. | Transducer |
| B. | Actuator |
| C. | Relay |
| D. | Sensor |
| Answer» E. | |
| 2. |
_ _ _ _ _ _can be defined as the variation in the constant of proportionality between the input physical quantity and the output electrical signal |
| A. | Resolution |
| B. | Accuracy |
| C. | Precision |
| D. | Linearity |
| Answer» E. | |
| 3. |
_ _ _ _ _ _ is also used to indicate the most probable value of the measured quantity when a set of readings are taken. |
| A. | Mean |
| B. | Median |
| C. | Mode |
| D. | deviation |
| Answer» C. Mode | |
| 4. |
What is the term used to express the ability of a measuring system to maintain its standard performance? |
| A. | Zero stability |
| B. | Stability |
| C. | Sensitivity |
| D. | Linearity |
| Answer» C. Sensitivity | |
| 5. |
_ _ _ _ _ _ is a popular technique for transmitting digital data in embedded systems. |
| A. | Analog voltage |
| B. | PWM |
| C. | Serial digital |
| D. | All the above |
| Answer» C. Serial digital | |
| 6. |
_ _ _ _ _ _can be defined as the tolerance within which a measurement can be repeated |
| A. | Resolution |
| B. | Accuracy |
| C. | Precision |
| D. | Scale |
| Answer» D. Scale | |
| 7. |
_ _ _ _ _ _ is the departure of a given reading from the arithmetic mean of a group of readings. |
| A. | Mean |
| B. | Median |
| C. | Mode |
| D. | deviation |
| Answer» E. | |
| 8. |
______________ describes current flow between two junctions formed by two different metals. |
| A. | Peltier effect |
| B. | Thomson effect |
| C. | Seebeck effect |
| D. | None of the mentioned |
| Answer» B. Thomson effect | |
| 9. |
In Hall Effect sensor, an electric current is _______ to the direction of the magnetic flux. |
| A. | Parallel |
| B. | Perpendicular |
| C. | 180 degree phase shift |
| D. | None of the above |
| Answer» C. 180 degree phase shift | |
| 10. |
In Hall Effect sensor, an electric potential is in third direction which is ________ to the other two directions. |
| A. | Parallel |
| B. | Mutually Perpendicular |
| C. | 180 degree phase shift |
| D. | None of the above |
| Answer» C. 180 degree phase shift | |
| 11. |
In optical encoder, the inner track has just one hole which is used locate the _ _ _ _of the disc. |
| A. | Anti Clockwise direction of the rotation |
| B. | Home position |
| C. | Clockwise direction of the rotation |
| D. | Both a) and c) |
| Answer» C. Clockwise direction of the rotation | |
| 12. |
In AMR the maximum sensitivity and linearity is achieved when the magnetization is at _ _ _ with respect to the current. |
| A. | 0 degree |
| B. | 15 degree |
| C. | 30 degree |
| D. | 45degree |
| Answer» E. | |
| 13. |
In Hall Effect, the electric field applied is perpendicular to both current and magnetic field? |
| A. | True |
| B. | False |
| C. | none |
| D. | none |
| Answer» B. False | |
| 14. |
The most common techniques for noise reduction are differential signal transmission and passive low pass _ _ _ _ |
| A. | Filtration |
| B. | Amplifier |
| C. | Relay |
| D. | All the above |
| Answer» B. Amplifier | |
| 15. |
A common example of a _ _ _ _ _ _ _ is to calibrate a temperature sensor using an ice-water bath and boiling water for the two references. |
| A. | One point calibration |
| B. | Two point calibration |
| C. | Three point calibration |
| D. | Both a) and b) |
| Answer» C. Three point calibration | |
| 16. |
_ _ _ _ _ _elements offer excellent temperature stability and high power dissipation abilities. |
| A. | Wire wound |
| B. | Conductive plastic |
| C. | Hybrid |
| D. | None of the above |
| Answer» B. Conductive plastic | |
| 17. |
________ measures temperature by correlating the resistance of the RTD with temperature. |
| A. | Thermistor |
| B. | Resistance Thermometer |
| C. | Thermo couple |
| D. | Semiconductor based sensor |
| Answer» C. Thermo couple | |
| 18. |
Which technique is most widely used in the single channel data acquisition system? |
| A. | Counter type approximation |
| B. | Flash approximation |
| C. | Successive approximation |
| D. | Delta Sigma approximation |
| Answer» D. Delta Sigma approximation | |
| 19. |
In GPS, Control segment consists of a master control station and _ _ _ _ other monitor stations. |
| A. | 2 |
| B. | 4 |
| C. | 6 |
| D. | 8 |
| Answer» C. 6 | |
| 20. |
In space segments, the satellites are arranged in _ _ _ orbits with _ _ _satellites in each orbit. |
| A. | 2, 4 |
| B. | 4, 4 |
| C. | 6,4 |
| D. | 8,4 |
| Answer» D. 8,4 | |
| 21. |
By using Rotating Polygon as scanner in Lidar what type of ground pattern it will form ______ |
| A. | Z shaped |
| B. | Sinusoidal |
| C. | Parallel |
| D. | Elliptical |
| Answer» D. Elliptical | |
| 22. |
In a measuring system what is the term used to specify a difference between higher and lower calibration values? |
| A. | Range |
| B. | Span |
| C. | Drift |
| D. | Threshold |
| Answer» C. Drift | |
| 23. |
The simplest model for a measurement system is a _ _ _ _ order differential equation |
| A. | Zero |
| B. | First |
| C. | Second |
| D. | Third |
| Answer» B. First | |
| 24. |
A _ _ _ _ _ _, is a measurement device that uses gravity to measure the inclination of an object. |
| A. | Inclinometer |
| B. | Strain gauge |
| C. | Magentoresistance |
| D. | Gyroscope |
| Answer» B. Strain gauge | |
| 25. |
Today, almost all electronic weighing scales use ________ for the measurement of weight |
| A. | Load cell |
| B. | Strain gauge |
| C. | Magentoresistance |
| D. | Gyroscope |
| Answer» B. Strain gauge | |
| 26. |
To perform the angle measurement a synchro pair is used and they are called as _ _ _ _ |
| A. | Transmitter |
| B. | Receiver |
| C. | Transmitter and control transformer |
| D. | None of the above |
| Answer» D. None of the above | |
| 27. |
The _ _ _ _ _characteristics of a transducer refer to the performance of the transducer when it is subjected to time varying signal. |
| A. | Static |
| B. | Dynamic |
| C. | Transient |
| D. | Both a) and b) |
| Answer» C. Transient | |
| 28. |
In an Inverting Amplifier circuit, the output voltage vo is expressed as a function of ____________ |
| A. | Input current |
| B. | Output current |
| C. | Source voltage |
| D. | Source current |
| Answer» D. Source current | |
| 29. |
The output voltage is measured which is proportional to the distance travelled by the _ _ _ _ _ |
| A. | Wiper/Jockey |
| B. | Conductive plastic |
| C. | Hybrid |
| D. | None of the above |
| Answer» B. Conductive plastic | |
| 30. |
_ _ _ _ _ _ are widely used in experimental stress analysis and diagnosis on machines and failure analysis. |
| A. | Load cell |
| B. | Strain gauge |
| C. | Magentoresistance |
| D. | Gyroscope |
| Answer» C. Magentoresistance | |
| 31. |
Nano particles target the rare _______ causing cells and remove them from blood. |
| A. | Tumour |
| B. | Fever |
| C. | Infection |
| D. | Cold |
| Answer» B. Fever | |
| 32. |
_________ Load cell are sometimes used where intrinsic safety and hygiene are desired. |
| A. | Hydraulic |
| B. | Pneumatic |
| C. | Capacitance |
| D. | Strain gauge |
| Answer» C. Capacitance | |
| 33. |
In A/D converter, what is the time relation between sampling period T and the duration of the sample mode and the hold mode? |
| A. | Should be larger than the duration of sample mode and hold mode |
| B. | Should be smaller than the duration of sample mode and hold mode |
| C. | Should be equal to the duration of sample mode and hold mode |
| D. | Should be larger than or equals to the duration of sample mode and hold mode |
| Answer» B. Should be smaller than the duration of sample mode and hold mode | |
| 34. |
___________ is the field in which the nano particles are used with silica coated iron oxide iron oxide. |
| A. | Magnetic applications |
| B. | Electronics |
| C. | Medical diagnosis |
| D. | Structural and mechanical materials |
| Answer» D. Structural and mechanical materials | |
| 35. |
_ _ _ _ _ is the value which occurs most frequently in a set of observations and around which other items of the set cluster densely |
| A. | Mean |
| B. | Median |
| C. | Mode |
| D. | Variance |
| Answer» D. Variance | |
| 36. |
Synchro is a rotating device that operates on the same principle as a _ _ _ _ _ _ and produces a set of voltages, correlated to angular position. |
| A. | Transformer principle |
| B. | Faradays principle |
| C. | Lens law |
| D. | Tesla principle |
| Answer» B. Faradays principle | |
| 37. |
An _ _ _ _ _ _ is an electromechanical device used to measure acceleration forces such as static or dynamic |
| A. | Synchros |
| B. | Resolver |
| C. | LVDT |
| D. | Microsyn |
| Answer» C. LVDT | |
| 38. |
_ _ _ _ _ _ _ is a standard for short-range radio communications, originally developed as a cable replacement to connect portable devices |
| A. | Radio beacon |
| B. | Bluetooth |
| C. | GPS |
| D. | All the above |
| Answer» C. GPS | |
| 39. |
The time required to complete the conversion of Analog to Digital is ________ the duration of the hold mode of S/H. |
| A. | Greater than |
| B. | Equals to |
| C. | Less than |
| D. | Greater than or Equals to |
| Answer» D. Greater than or Equals to | |
| 40. |
Amount of heat liberated or absorbed when 1A current passes is called ____________ |
| A. | Thomson coefficient |
| B. | Peltier coefficient |
| C. | Seebeck coefficient |
| D. | None of the mentioned |
| Answer» C. Seebeck coefficient | |
| 41. |
How many control lines are present in analog to digital converter in addition to reference voltage? |
| A. | Three |
| B. | Two |
| C. | One |
| D. | None of the mentioned |
| Answer» C. One | |
| 42. |
When the magnetic layers are aligned in the opposing direction, then electrons originating in one layer are __________ from the adjacent layer |
| A. | Freely |
| B. | Blocked |
| C. | rest on |
| D. | All the above |
| Answer» C. rest on | |
| 43. |
What is the region after the stop band frequency in the magnitude frequency response of a low pass filter? |
| A. | Stop band |
| B. | Pass band |
| C. | Transition band |
| D. | None of the mentioned |
| Answer» B. Pass band | |
| 44. |
Bluetooth Network consists of a Personal Area Network which contains a minimum of ___to maximum of ___ Bluetooth peer devices. |
| A. | 2 ,4 |
| B. | 2,6 |
| C. | 2,8 |
| D. | 2,10 |
| Answer» D. 2,10 | |
| 45. |
A ________ is thermally sensitive resistor that exhibits a large change in resistance. |
| A. | Thermistor |
| B. | Resistance Thermometer |
| C. | Thermo couple |
| D. | Semiconductor based sensor |
| Answer» B. Resistance Thermometer | |
| 46. |
During which period the op-amps output of sample and hold circuits is processed? |
| A. | Delay period |
| B. | Sample and hold period |
| C. | Sample period |
| D. | Hold period |
| Answer» E. | |
| 47. |
________ load cells are considered in remote locations, as they do not require a power supply. |
| A. | Hydraulic |
| B. | Pneumatic |
| C. | Capacitance |
| D. | Strain gauge |
| Answer» B. Pneumatic | |
| 48. |
_ _ _ _ _ depends on the angle between the electric current and the magnetization direction |
| A. | Anisotropic Magnetoresistance |
| B. | Giant Magnetoresistance |
| C. | Tunnel Magnetoresistance |
| D. | All the above |
| Answer» B. Giant Magnetoresistance | |
| 49. |
When the magnetic layers are aligned in the same direction, electrons originating in one layer may pass relatively _ _ _ _ _ through the other layers |
| A. | Freely |
| B. | Blocked |
| C. | rest on |
| D. | All the above |
| Answer» B. Blocked | |
| 50. |
The mercury in glass thermometer is an example of a _ _ _ _ _ _ order instrument |
| A. | Zero |
| B. | First |
| C. | Second |
| D. | Third |
| Answer» C. Second | |