Q.1 Which is not a type of pulse Modulation?
A) PAM
B) PWM
C) PFM
D) PPM
Ans: C
Q.2 PPM and PWM are superior to PAM in?
A) Noise Characteristic
B) Band Width Characteristic
C) Simplified Design
D) Frequency response of the intelligence signal
Ans: A
Q.3 A special digital modulation technique that achieves high rates in limited band width channel is called ?
A) Delta Modulation
B) PCM
C) PAM
D) QAM
Ans: A
Q.4 In PAM the amplitude of carrier pulse train is varied in accordance with?
A) Modulated Signal
B) Modulated Signal (Instantaneous Value)
C) Carrier Signal
D) None
Ans: B
Q.5 PAM is a
A) Analog pulse modulation scheme
B) Digital Pulse Modulation Scheme
C) Analog to Digital
D) None
Ans: A
