Q.1
##### What is a fundamental angular frequency?
• a) The inverse of the fundamental time period
• b) The inverse of fundamental frequency
• c) Fundamental frequency in radians
• d) Fundamental frequency in degree
Q.2
• a) 4π
• b) π
• c) 2π
• d) 3π
Q.3
• a) 2πm/w
• b) 2πm/w
• c) 2πm/w
• d) 2πm/w
Q.4
##### What is the condition of a periodicity of exponential signal eαt?
• a) α=1
• b) α=2
• c) α=3
• d) Depends on equation
Q.5
##### Is the sum of discrete time periodic signals periodic?
• a) No, they are not
• b) Yes they are
• c) Depends on the signal
• d) Not periodic if their ratio is not rational
Q.6
##### How can we generate a periodic signal from a periodic signal itself?
• a) By extending a signal with duration T
• b) Cannot be extended
• c) By extending the periodic signal’s amplitude
• d) By extending the sugar with duration 2π
Q.7
##### Is a non periodic signal same as aperiodic signal?
• a) No, it is not same as an aperiodic signal
• b) Yes it is the other name of aperiodic signal
• c) It is a branch of aperiodic signal
• d) Aperiodic signal is a branch of non periodic signal
Q.8
• a) 8π
• b) 16π
• c) 12π
• d) 10π
Q.9
##### When a continuous signal is a mixture of two continuous periodic signals, what is its periodicity?
• a) LCM of the periods of the two signals, provide their ratio is unity
• b) LCM of the periods of the two signals, provide their ratio is rational
• c) HCF of the periods of the two signals, provide their ratio is rational
• d) LCM of the periods of the two signals provide their ratio is real
Q.10
##### Is the signal eαt periodic?
• a) Not periodic
• b) Yes periodic
• c) Depends on the value of
• d) Semi- periodic