MCQOPTIONS
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MCQOPTIONS
This section includes 56 Mcqs, each offering curated multiple-choice questions to sharpen your Analog Communications knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
In amplitude modulation, magnitude of side bands is 2ma times the carrier amplitude. |
| A. | True |
| B. | False |
| Answer» C. | |
| 52. |
Thermal noise shot noise and transit time noise is part of internal noise in communication. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 53. |
Autocorrelation function of which noise is a constant? |
| A. | white noise |
| B. | shot noise |
| C. | transit time noise |
| D. | extraterrestrial noise |
| Answer» B. shot noise | |
| 54. |
In a Vidicon camera tube, the side of target plate facing the light has a coating of antimony trisulphide and the side facing electron gun has a coating of tin oxide. |
| A. | True |
| B. | False |
| Answer» C. | |
| 55. |
For a large amount of power, a push pull amplifier is designed for operation as ________ |
| A. | class C |
| B. | class B |
| C. | class AB |
| D. | class A |
| Answer» C. class AB | |
| 56. |
If a receiver has poor selectivity then it also have poor ________ |
| A. | sensitivity |
| B. | blocking of unwanted signals |
| C. | double spotting |
| D. | reception |
| Answer» C. double spotting | |