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
What is the period of cos+ sin14t?
  • a) 4π
  • b) π
  • c) 2π
  • d) 3π
Q.3
What is the periodicity of a discrete time signal?
  • 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
What is the period of the signal: 2cost/6?
  • 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
0 h : 0 m : 1 s