SIGNALS & SYSTEM M1,M2&M3

Find the initial and final values of the function:F(s) = 12(s+1)/s(s+2)²(s+3)

Loop which do not possess any common node are said to be ___________ loops.

• Forward gain

• Touching loops

• Non touching loops

• Feedback gain

The type of systems which are characterized by input and the output quantized at certain levels are called as

• analog

• discrete

• continuous

• digital

A control system working under unknown random actions is called ____________

• Adaptive control system

• Stochastic control system

• Computer control system

• Digital data system

Discrete time signal is derived from continuous time signal by _____________ process.

• Addition

• Multiplying

• Sampling

• Addition and multiplication

The output of an first order hold between two consecutive sampling instants is:

• Constant

• Quadratic Function

• Ramp Function

• Exponential Function

The capacitance, in force-current analogy, is analogous to

• Momentum

• Velocity

• Displacement

• Mass

A system is said to be defined as non causal, when

• the output at the present depends on the input at an earlier time

• the output at the present does not depend on the factor of time at all

• the output at the present depends on the input at the current time

• the output at the present depends on the input at a time instant in the future

What is the frequency domain?

• Analysis of signals in a frequency range

• Analysis of signals in their bandwidth

• Analysis of a signal with respect to its frequency

• Study of a system in accordance to changes in its overall frequency

Regenerative feedback implies feedback with

• Oscillations

• Step input

• Negative sign

• Positive sign