MCQOPTIONS
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MCQOPTIONS
This section includes 10 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. |
FTTC stands for ________ |
| A. | Fiber To The Curb |
| B. | Fiber Telephone Transmission Cable |
| C. | Fiber Transmission Timing Cable |
| D. | Fiber Telephone Timing Cable |
| Answer» B. Fiber Telephone Transmission Cable | |
| 2. |
For signal, m(t) = 50cos(10 × 90t + 30 sin100t), the power dissipated by the 20Ω resistor is _______?# |
| A. | 100W |
| B. | 65W |
| C. | 74.7W |
| D. | 62.5W |
| Answer» E. | |
| 3. |
What is the full form of DWDM? |
| A. | Dense Wavelength Division Multiplexing |
| B. | Dense Wavelength Division Modulation |
| C. | Directed Wavelength Division Multiplexing |
| D. | Directed Wavelength Division Modulation |
| Answer» B. Dense Wavelength Division Modulation | |
| 4. |
Power above the minimum required by an optical receiver is called ________ |
| A. | phase margin |
| B. | system margin |
| C. | excess gain |
| D. | gain margin |
| Answer» C. excess gain | |
| 5. |
The power density of a flicker noise is _________ |
| A. | low at high frequencies |
| B. | greater at low frequencies |
| C. | greater at high frequencies |
| D. | low at low frequencies |
| Answer» C. greater at high frequencies | |
| 6. |
Which parts of a sinusoidal carrier can be modulated? |
| A. | only amplitude |
| B. | only frequency |
| C. | its amplitude, frequency and direction |
| D. | its amplitude, frequency and phase angle |
| Answer» E. | |
| 7. |
The conditions for sinusoidal oscillation from an amplifier are called _________ |
| A. | Loop-gain criteria |
| B. | Hartley criteria |
| C. | Biasing criteria |
| D. | Barkhausen criteria |
| Answer» E. | |
| 8. |
What is used in Hartley oscillator? |
| A. | a piezoelectric crystal |
| B. | two resistor divider |
| C. | a two-capacitor divider |
| D. | a tapped inductor |
| Answer» E. | |
| 9. |
VFO stands for ________ |
| A. | Voltage Feedback Oscillator |
| B. | Variable Feedback Oscillator |
| C. | Voltage Frequency Oscillator |
| D. | Variable Frequency Oscillator |
| Answer» E. | |
| 10. |
What is the full form of SONET? |
| A. | Synchronous Optical Network |
| B. | Standard Optical Network |
| C. | Secret Optical Network |
| D. | Service Optical Network |
| Answer» B. Standard Optical Network | |