MM0704, Lesson 2
REVIEW EXERCISES
Circle the letter of the correct answer to each question.
1.
Which combination of arms is in a full -section filter?
a.
One shunt and one series.
b.
One shunt and two series.
c.
Two shunts and one series.
d.
Two shunts and two series.
2.
How will an increase in frequency affect a filter circuit?
a.
Increase capacitive reactance.
b.
Decrease and increase capacitive reactance.
c.
Increase inductive reactance.
d.
Decrease and increase inductive reactance.
3.
Where are low-pass filters commonly used?
a.
Power supplies.
b.
Coupling networks.
c.
Amplifying networks.
d.
Wave-shaping networks.
4.
Why is a capacitor connected across the resistor in an RC filter circuit?
a.
To prevent DC from entering the B+ supply.
b.
To prevent AC from entering the B+ supply.
c.
To provide a path for DC.
d.
To provide a path for AC.
5.
What is the function of a capacitor in a high-pass filter circuit?
a.
It offers a high-impedance path to high-frequency currents.
b.
It offers a high-impedance path to the desired frequencies.
c.
d.
It provides a low-impedance path for the undesired frequencies.
6.
What BEST describes a parallel resonant tank circuit of a band-pass filter at resonance?
a.
Has maximum line current through tank.
b.
Has minimum line current through tank and maximum tank current.
c.
Has minimum tank current
d.
Has maximum line current through tank and minimum tank current.
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