ZCD Online Exam Quiz
ZCD GK Quiz. Question and Answers related to ZCD. MCQ (Multiple Choice Questions with answers about ZCD
Flyback switched mode is used in television because it can supply many voltage outputs.
Options
A : TRUE
B : FALSE
C : -
D : -
In which modulation, frequency of carrier signal is varied with the amplitude of modulating signal?
Options
A : FM
B : AM
C : PM
D : VSB
Monopole antenna is a type of travelling wave antenna.
Options
A : TRUE
B : FALSE
C : -
D : -
On which factor dominant mode of a waveguide depends?
Options
A : shape
B : power
C : direction
D : bandwidth
The electric and magnetic field of a radio wave are perpendicular to each other.
Options
A : TRUE
B : FALSE
C : -
D : -
The equation 20sin?(108 t + 3 sin? 109 t) represents which modulation?
Options
A : AM
B : DSB-SC
C : PM
D : FM
What will be the effect on power if the modulation index of a frequency modulated signal is increased?
Options
A : increases
B : decreases
C : remains constant
D : first increases and then decreases
Which polarization is possible for an electromagnetic wave?
Options
A : vertical
B : circular
C : horizontal
D : can be vertical or horizontal or circular
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