

MCQOPTIONS
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This section includes 5 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. |
Which of these amplifiers is used for impedance matching? |
A. | Common Base |
B. | Common Emitter |
C. | Common Collector |
D. | Common Base & Emitter |
Answer» D. Common Base & Emitter | |
2. |
The intermediate frequency of a superheterodyne receiver is 500KHz. What is the image frequency at 1200KHz? |
A. | 600KHz |
B. | 500KHz |
C. | 700KHz |
D. | 200KHz |
Answer» D. 200KHz | |
3. |
Helical antenna is circularly polarized. |
A. | True |
B. | False |
Answer» B. False | |
4. |
If the distance between antenna and source doubles, the received signal power decreases by 1 4. |
A. | True |
B. | False |
Answer» B. False | |
5. |
Power density from an isotropic antenna is equal to ________ |
A. | ( frac{P_t}{4 pi R^2} ) |
B. | ( frac{P_c}{4 pi R^2} ) |
C. | ( frac{P_t}{2 pi R^2} ) |
D. | ( frac{P_t}{4 pi R} ) |
Answer» B. ( frac{P_c}{4 pi R^2} ) | |