MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Signals Systems knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
IN_DISCRETE_SIGNAL,_IF_Y_[N]_=_X_[K*N]_AND_K>1_THEN_______?$ |
| A. | Some samples are lost from x [n] |
| B. | Some samples are added to x [n] |
| C. | It has no effect on samples |
| D. | Samples will be increased with factor k |
| Answer» B. Some samples are added to x [n] | |
| 2. |
Y_(T)_=_X_(T/5)_IS________?$ |
| A. | Compressed signal |
| B. | Expanded signal |
| C. | Time shifted signal |
| D. | Amplitude scaled signal by factor 1/5 |
| Answer» C. Time shifted signal | |
| 3. |
Y (t) = x (2t) is _______? |
| A. | Compressed signal |
| B. | Expanded signal |
| C. | Shifted signal |
| D. | Amplitude scaled signal by a factor of 2 |
| Answer» B. Expanded signal | |
| 4. |
Time scaling is an operation performed on _______ |
| A. | Dependent variable |
| B. | Independent variable |
| C. | Both dependent and independent variable |
| D. | Neither dependent nor independent variable |
| Answer» C. Both dependent and independent variable | |
| 5. |
Which of the component performs integration operation? |
| A. | Resistor |
| B. | Diode |
| C. | Capacitor |
| D. | Inductor |
| Answer» D. Inductor | |
| 6. |
Which of the passive component performs differentiation operation? |
| A. | Resistor |
| B. | Capacitor |
| C. | Inductor |
| D. | Amplifier |
| Answer» D. Amplifier | |
| 7. |
AM radio signal is an example for __________ |
| A. | y (t) = a x (t) |
| B. | y (t) = x1 (t) + x2 (t) |
| C. | y (t) = x1 (t) * x2 (t) |
| D. | y (t) = -x(t) |
| Answer» D. y (t) = -x(t) | |
| 8. |
Which of the following is an example of physical device which adds the signals? |
| A. | Radio |
| B. | Audio mixer |
| C. | Frequency divider |
| D. | Subtractor |
| Answer» C. Frequency divider | |
| 9. |
Resistor performs amplitude scaling when x (t) is voltage, a is resistance and y (t) is output current. |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
Which of the following is an example of amplitude scaling? |
| A. | Electronic amplifier |
| B. | Electronic attenuator |
| C. | Both amplifier and attenuator |
| D. | Adder |
| Answer» D. Adder | |