Signals Operation Basics Quiz

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Signals fundamentals quiz.

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Siddharth Singh

India

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Signals Operation Basics Quiz


Signals Operation Basics QuizVersión en línea Signals fundamentals quiz. por Siddharth Singh 1 What is a signal in engineering? a A function conveying information over time b A fixed voltage with no changes c A type of mechanical component d A static value that never varies 2 What is the difference between analog and digital signals? a Analog uses only positive values b Analog varies continuously; digital is discrete c Digital is smoother than analog d Analog is discrete; digital is continuous 3 What does sampling do? a Increases signal frequency b Adds noise to a signal c Stores signal in memory d Converts a continuous signal to a discrete sequence 4 What is the Nyquist rate? a Equal to the highest frequency b Half the highest frequency c Three times the lowest frequency d Twice the highest frequency present 5 What is a linear time-invariant system's impulse response? a The system's voltage rating b The power consumption c Its output when input is an impulse d A time-varying output 6 What does transforming the dependent variable do to coefficient interpretation? a Coefficients are on the transformed DV scale b IV scale changes c It automatically resolves heteroscedasticity. d Coefficients refer to the original DV scale. 7 When should you transform an independent variable? a If DV is skewed b To increase p-values c When its relationship with the DV is nonlinear d If sample size is large 8 Which is true about transforming independent variables? a It has no practical effect b It always increases R-squared c Transforming an IV can linearize its relationship with the DV d It always makes the data normal 9 What is the key feature of an analog signal? a It uses discrete steps b It is a digital sequence c It has fixed binary levels d It varies continuously. 10 Which signal uses discrete values at sampling instants? a Periodic signal b Continuous-time signal c Digital signal. d Analog signal 11 What describes a discrete signal? a Continuous in time b Remains constant c Has infinite precision d Defined only at specific times. 12 What does a periodic signal do? a Is random noise b Never repeats c Only occurs in digital signals d Repeats at regular intervals. 13 Which term means a signal that does not repeat regularly? a Broadband signal b Periodic signal c Deterministic signal d Aperiodic signal. 14 What best defines a deterministic signal? a Always periodic b Depends on noise c Completely random d Future values are fully determined. 15 What term describes a signal with randomness? a Stochastic (random) signal. b Narrowband signal c Periodic signal d Deterministic signal 16 What does sampling accomplish? a Increases amplitude b Turns digital into analog c Converts a continuous signal to discrete form. d Eliminates all frequencies 17 Which signal is continuous in time and amplitude? a Digital signal b Discrete-time signal c Analog signal. d Broadband signal 18 Which term describes a signal carrying a wide range of frequencies? a Broadband signal. b Narrowband signal c Discrete signal d Digital signal

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Signals Operation Basics Quiz

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Signals Operation Basics QuizVersión en línea

por Siddharth Singh

What is a signal in engineering?

What is the difference between analog and digital signals?

What does sampling do?

What is the Nyquist rate?

What is a linear time-invariant system's impulse response?

What does transforming the dependent variable do to coefficient interpretation?

When should you transform an independent variable?

Which is true about transforming independent variables?

What is the key feature of an analog signal?

Which signal uses discrete values at sampling instants?

What describes a discrete signal?

What does a periodic signal do?

Which term means a signal that does not repeat regularly?

What best defines a deterministic signal?

What term describes a signal with randomness?

What does sampling accomplish?

Which signal is continuous in time and amplitude?

Which term describes a signal carrying a wide range of frequencies?