MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Analog Communications knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Selectivity measures ________ |
| A. | the range of frequencies that receiver can select |
| B. | with two signals close in frequency, the ability to select one and reject other |
| C. | how well adjacent frequencies are separated by the demodulator |
| D. | how well adjacent frequencies are separated in the mixer |
| Answer» B. with two signals close in frequency, the ability to select one and reject other | |
| 2. |
Sensitivity measures ________ |
| A. | weakest signal that is received at the receiver |
| B. | strongest signal that is received at the receiver |
| C. | weakest frequency signal that is received at the receiver |
| D. | strongest frequency signal that is received at the receiver |
| Answer» B. strongest signal that is received at the receiver | |
| 3. |
What is the full form of AGC? |
| A. | Automatic Gain Control |
| B. | Audio Gain Control |
| C. | Automatic Gain Conversion |
| D. | Active Gain Control |
| Answer» B. Audio Gain Control | |
| 4. |
SENSITIVITY_MEASURES_________?$ |
| A. | weakest signal that is received at the receiver |
| B. | strongest signal that is received at the receiver |
| C. | weakest frequency signal that is received at the receiver |
| D. | strongest frequency signal that is received at the receiver |
| Answer» B. strongest signal that is received at the receiver | |
| 5. |
Selectivity_measures_________$ |
| A. | the range of frequencies that receiver can select |
| B. | with two signals close in frequency, the ability to select one and reject other |
| C. | how well adjacent frequencies are separated by the demodulator |
| D. | how well adjacent frequencies are separated in the mixer |
| Answer» B. with two signals close in frequency, the ability to select one and reject other | |
| 6. |
What is the full form of IF? |
| A. | Intermediate Frequency |
| B. | Internal Frequency |
| C. | Indeterminate Frequency |
| D. | Image Frequency |
| Answer» B. Internal Frequency | |
| 7. |
A class D amplifiers is very efficient than other amplifiers. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
Trimmers and padders are ________ |
| A. | two types of adjusting tools |
| B. | small adjustable resistors |
| C. | small adjustable inductors |
| D. | small adjustable capacitors |
| Answer» E. | |
| 9. |
What will be the reason of miller effect in BJT? |
| A. | inductance of collector load |
| B. | collector-to-emitter capacitance |
| C. | base-to-emitter capacitance |
| D. | base-to-collector capacitance |
| Answer» E. | |
| 10. |
Miller effect can reduce the bandwidth of an amplifier. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 11. |
What is the baseband bandwidth for a voice grade signal? |
| A. | atleast 10KHz |
| B. | atleast 5KHz |
| C. | approximately 3KHz |
| D. | approximately 15KHz |
| Answer» D. approximately 15KHz | |
| 12. |
What will be the effect if we loading down a tuned-circuit amplifier? |
| A. | it will raise the Q factor of tuned circuit |
| B. | it will lower the Q factor of tuned circuit |
| C. | it will multiply the Q factor by a constant |
| D. | it will have no effect on Q factor |
| Answer» C. it will multiply the Q factor by a constant | |