18-02-2013, 10:31 AM
GATE CLOUD SIGNALS & SYSTEMS
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MCQ 1.1.1 The graphical representation of a signal in the time domain is known as
(A) frequency (B) waveform
© frequency spectrum (D) none of the above
MCQ 1.1.2 A continuous-time signal is a signal in which the independent variable is
(A) discrete (B) continuous
© (A) or (B) (D) none of the above
MCQ 1.1.3 Digital signals are those signal which
(A) do not have a continuous set of values
(B) have values at discrete instants
© can utilize decimal or binary system
(D) are all of the above
MCQ 1.1.4 A deterministic signal is the signal which
(A) can not be represented by a mathematical expression
(B) has no uncertainty
© has uncertainty
(D) none of the above
MCQ 1.1.5 A random signal is the signal which
(A) has uncertainty (B) has no uncertainty
© is a completely specified function of time (D) none of the above
MCQ 1.1.6 Speech signals and the sine wave respectively are the example of
(A) deterministic signal, random signal.
(B) both random signals
© both deterministic signals
(D) random signal, deterministic signals
MCQ 1.1.7 Which of the following is a periodic signal ?
(A) x(t) = At 2 (B) x(t) = Ae−jαt
© x(t) = Aeαt