How are the capacitors and inductors of a low-pass filter Pi-network arranged between the network's input and output?

1. A Two inductors are in series between the input and output, and a capacitor is connected between the two inductors and ground
2. B Two capacitors are in series between the input and output, and an inductor is connected between the two capacitors and ground
3. C An inductor is connected between the input and ground, another inductor is connected between the output and ground, and a capacitor is connected between the input and output
4. D A capacitor is connected between the input and ground, another capacitor is connected between the output and ground, and an inductor is connected between the input and output

What is the frequency response of a T-network with series capacitors and a shunt inductor?

1. A Low-pass
2. B High-pass
3. C Band-pass
4. D Notch

What is the purpose of adding an inductor to a Pi-network to create a Pi-L-network?

1. A Greater harmonic suppression
2. B Higher efficiency
3. C To eliminate one capacitor
4. D Greater transformation range

How does an impedance-matching circuit transform a complex impedance to a resistive impedance?

1. A It introduces negative resistance to cancel the resistive part of impedance
2. B It introduces transconductance to cancel the reactive part of impedance
3. C It cancels the reactive part of the impedance and changes the resistive part to the desired value
4. D Reactive currents are dissipated in matched resistances

Which filter type has ripple in the passband and a sharp cutoff?

1. A A Butterworth filter
2. B An active LC filter
3. C A passive op-amp filter
4. D A Chebyshev filter

What are the characteristics of an elliptical filter?

1. A Gradual passband rolloff with minimal stop-band ripple
2. B Extremely flat response over its pass band with gradually rounded stop-band corners
3. C Extremely sharp cutoff with one or more notches in the stop band
4. D Gradual passband rolloff with extreme stop-band ripple

Which describes a Pi-L network?

1. A A Phase Inverter Load network
2. B A Pi-network with an additional output series inductor
3. C A network with only three discrete parts
4. D A matching network in which all components are isolated from ground

Which of the following is most frequently used as a band-pass or notch filter in VHF and UHF transceivers?

1. A A Sallen-Key filter
2. B A helical filter
3. C A swinging choke filter
4. D A finite impulse response filter

What is a crystal lattice filter?

1. A A power supply filter made with interlaced quartz crystals
2. B An audio filter made with four quartz crystals that resonate at 1 kHz intervals
3. C A filter using lattice-shaped quartz crystals for high-Q performance
4. D A filter for low-level signals made using quartz crystals

Which of the following filters is used in a 2-meter band repeater duplexer?

1. A A crystal filter
2. B A cavity filter
3. C A DSP filter
4. D An L-C filter

Which of the following measures a filter's ability to reject signals in adjacent channels?

1. A Passband ripple
2. B Phase response
3. C Shape factor
4. D Noise factor