Hertz and Resonant Circuit
ELTR 2110 Analogue Communications: Module 1 Practice Test
1. A technique for resolving complex repetitive waveforms into sine or cosine waves and a dc component is known as: a) Harmonic Analysis b) Armstrong's Principle c) Fourier Analysis d) Frequency Analysis
Answer: c
2. The statement "information is proportional to bandwidth" is known as: a) Simpson Rule b) Shannon's Law. c) Fourier's Law. d) Hartley's Law
Answer: d
3. Given that a filter has a Q of 50 and a BW of 500 Hz, determine its resonant or center frequency. a) 100 kHz b) 25,000 kHz c) 2500 kHz d) 250 kHz
Answer: b
4. A device that converts energy from one form to another is called a: a) transducer. b) transmitter. c) modulator. d) detector.
Answer: a
5. The device which extracts the information signal from the high frequency carrier in a receiver is called a: a) transducer. b) transmitter. c) modulator. d) demodulator.
Answer: d
6. Frequencies between 3 and 30 Mhz are referred to as:
a. Ultra-High Frequencies (UHF').
b. High Frequencies (HF).
c. Very-High Frequencies (VHF').
d. Medium Frequencies (MF).
Answer: b
7. Ultra-High Frequency signals are between: a) 30 Mhz and 300 MHz. b) 3 Mhz and 30 GHz. c) 3 Mhz and 30 MHz. d) 300 Mhz and 3 GHz.
Answer: d
8. Hartley's law states that: a) bandwidth is directly proportional to both the amount of information and time of transmission. b) the amount of information is directly proportional to both the system bandwidth and time of transmission. c) the time of transmission is directly proportional to both the system bandwidth and the amount of information. d) the bandwidth is directly proportional to both the amount of information and the amount of noise present.
Answer: b
9. A ramp waveform of the type shown in Figure 1-la has a
1. A technique for resolving complex repetitive waveforms into sine or cosine waves and a dc component is known as: a) Harmonic Analysis b) Armstrong's Principle c) Fourier Analysis d) Frequency Analysis
Answer: c
2. The statement "information is proportional to bandwidth" is known as: a) Simpson Rule b) Shannon's Law. c) Fourier's Law. d) Hartley's Law
Answer: d
3. Given that a filter has a Q of 50 and a BW of 500 Hz, determine its resonant or center frequency. a) 100 kHz b) 25,000 kHz c) 2500 kHz d) 250 kHz
Answer: b
4. A device that converts energy from one form to another is called a: a) transducer. b) transmitter. c) modulator. d) detector.
Answer: a
5. The device which extracts the information signal from the high frequency carrier in a receiver is called a: a) transducer. b) transmitter. c) modulator. d) demodulator.
Answer: d
6. Frequencies between 3 and 30 Mhz are referred to as:
a. Ultra-High Frequencies (UHF').
b. High Frequencies (HF).
c. Very-High Frequencies (VHF').
d. Medium Frequencies (MF).
Answer: b
7. Ultra-High Frequency signals are between: a) 30 Mhz and 300 MHz. b) 3 Mhz and 30 GHz. c) 3 Mhz and 30 MHz. d) 300 Mhz and 3 GHz.
Answer: d
8. Hartley's law states that: a) bandwidth is directly proportional to both the amount of information and time of transmission. b) the amount of information is directly proportional to both the system bandwidth and time of transmission. c) the time of transmission is directly proportional to both the system bandwidth and the amount of information. d) the bandwidth is directly proportional to both the amount of information and the amount of noise present.
Answer: b
9. A ramp waveform of the type shown in Figure 1-la has a