MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Network Theory knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A high pass filter has a resistance R = 2 kΩ. The lowest input frequency to be passed is 7.5 kHz. The value of suitable coupling capacitor must be |
| A. | 0.001 micro Farad |
| B. | 0.01 micro Farad |
| C. | 0.1 micro Farad |
| D. | 1 micro Farad |
| Answer» C. 0.1 micro Farad | |
| 2. |
For attenuation of high frequencies we should use |
| A. | shunt capacitance |
| B. | series capacitance |
| C. | inductance |
| D. | resistance |
| Answer» B. series capacitance | |
| 3. |
Obtain the values of L and C for a prototype low pass filter with R0 = 500 Ω and cut off frequency fc = 2 kHz. |
| A. | 79.57 mH, 0.3183 μF |
| B. | 36.45 mH, 0.2 μF |
| C. | 25.45 mH, 0.85 μF |
| D. | 15.45 mH, 2.2 μF |
| Answer» B. 36.45 mH, 0.2 μF | |
| 4. |
Consider a low-pass filter module with a pass-band ripple of δ in the gain magnitude. If M such identical modules are cascaded, ignoring the loading effects, the pass-band ripple of the cascade is |
| A. | 1 – (1 - δ)M |
| B. | δM |
| C. | (1 - δM) |
| D. | (1 - δ)M |
| Answer» B. δM | |
| 5. |
An apparatus to capture ECG signals has a filter followed by a data acquisition system. The filter best suited for this application is |
| A. | low pass with cutoff frequency 200 Hz |
| B. | high pass with cutoff frequency 200 Hz |
| C. | band pass with lower and upper cutoff frequencies 100 Hz and 200 Hz for its pass band |
| D. | band reject with lower and upper cutoff frequencies 1 Hz and 200 Hz for its stop band |
| Answer» B. high pass with cutoff frequency 200 Hz | |
| 6. |
A spot frequency from a signal can be rejected by _______ |
| A. | Low pass filter |
| B. | Band pass filter |
| C. | Notch filter |
| D. | High pass filter |
| Answer» D. High pass filter | |
| 7. |
G(s) = 1/(1 + sRC) in a RC network represents _______ |
| A. | low pass |
| B. | high pass |
| C. | band pass |
| D. | band stop |
| Answer» B. high pass | |
| 8. |
A band pass filter is one which |
| A. | Attenuates frequencies between two designated cut off frequencies and passes all other frequencies |
| B. | Passes all frequencies |
| C. | Attenuates all frequencies |
| D. | Passes frequencies between two designated cut off frequencies |
| Answer» E. | |