Q.1    Recovering the information from a modulated signal is called __________?
A)    Detection
B)    Attenuation
C)    Demodulation
D)    A or C


Q.2    AM detection is often accomplished with a _________ rectifier?
A)    Resistor
B)    Capacitor
C)    Diode
D)    None of these


Q.3    Radio receivers employ tuned amplifiers to provide sensitivity and _________?
A)    Selectivity
B)    Receptivity
C)    Rejection
D)    None of these


Q.4    Superheterodyne receivers convert each signal to an _______ frequency?
A)    Intermediate
B)    Central
C)    Immediate
D)    None of these