MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
When a network is matched to its external circuitry, the gain of the two port network is given by: |
| A. | S<sub>21</sub> <sup>2</sup> |
| B. | S<sub>22</sub> <sup>2</sup> |
| C. | S<sub>12</sub> <sup>2</sup> |
| D. | S<sub>11</sub> <sup>2</sup> |
| Answer» B. S<sub>22</sub> <sup>2</sup> | |
| 2. |
If the noise figures of the first stage of a two stage cascade network is 8 dB and the noise figure of the second stage is 7 dB and the gain of the first stage is 10, then the noise figure of the cascade is: |
| A. | 8. 6 dB |
| B. | 7.6 dB |
| C. | 5.6 dB |
| D. | 8.9 dB |
| Answer» B. 7.6 dB | |
| 3. |
__________ is defined as the ratio of input signal to noise ratio to the output signal to noise ratio. |
| A. | Noise figure |
| B. | Noise temperature |
| C. | SNRo |
| D. | None of the mentioned |
| Answer» B. Noise temperature | |
| 4. |
___________ is defined as the ratio of desired signal power to undesired noise power. |
| A. | Signal to noise ratio |
| B. | Noise to signal ratio |
| C. | Noise figure |
| D. | Noise temperature |
| Answer» B. Noise to signal ratio | |