MCQOPTIONS
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MCQOPTIONS
This section includes 14 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. |
What are the types of symmetry shown by signals? |
| A. | Even symmetry and odd symmetry |
| B. | Even, odd and quarter wave symmetry |
| C. | Even, odd, half-wave and quarter wave symmetry |
| D. | Half wave symmetry |
| Answer» D. Half wave symmetry | |
| 2. |
When does a wave posses a quarter wave symmetry? |
| A. | It has either even or odd symmetry |
| B. | It has half wave symmetry |
| C. | even/odd symmetry and half wave symmetry |
| D. | It is even in one quarter and odd in the other |
| Answer» D. It is even in one quarter and odd in the other | |
| 3. |
How can we define the coefficients a half wave symmetry when n is even? |
| A. | an=0 and bn=0 and a0=0 |
| B. | an=4/T∫x(t)cos(nwt)dt and bn=0= a0 |
| C. | an=4/T∫x(t)sin(nwt)dt and bn=4/T∫x(t)cos(nwt)dt and a0=0 |
| D. | an=4/T∫x(t)sin(nwt)dt and bn=4/T and a0=0 |
| Answer» B. an=4/T∫x(t)cos(nwt)dt and bn=0= a0 | |
| 4. |
What is the function of an odd signal? |
| A. | x(t) = -x(t) |
| B. | x(t) = x(-t) |
| C. | x(t) = -x(-t) |
| D. | x(t) = x(t+1) |
| Answer» B. x(t) = x(-t) | |
| 5. |
HOW_CAN_WE_DEFINE_THE_COEFFICIENTS_A_HALF_WAVE_SYMMETRY_WHEN_N_IS_EVEN??$ |
| A. | a<sub>n</sub>=0 and b<sub>n</sub>=0 and a<sub>0</sub>=0 |
| B. | a<sub>n</sub>=4/T‚à´x(t)cos(nwt)dt and b<sub>n</sub>=0= a<sub>0</sub> |
| C. | a<sub>n</sub>=4/T‚à´x(t)sin(nwt)dt and b<sub>n</sub>=4/T‚à´x(t)cos(nwt)dt and a<sub>0</sub>=0 |
| D. | a<sub>n</sub>=4/T‚à´x(t)sin(nwt)dt and b<sub>n</sub>=4/T and a<sub>0</sub>=0 |
| Answer» D. a<sub>n</sub>=4/T‚Äö√Ñ√∂‚àö‚Ƭ¨¬•x(t)sin(nwt)dt and b<sub>n</sub>=4/T and a<sub>0</sub>=0 | |
| 6. |
What are the types of symmetry shown by signals?$ |
| A. | Even symmetry and odd symmetry |
| B. | Even, odd and quarter wave symmetry |
| C. | Even, odd, half-wave and quarter wave symmetry |
| D. | Half wave symmetry |
| Answer» D. Half wave symmetry | |
| 7. |
When_does_a_wave_posses_a_quarter_wave_symmetry?$ |
| A. | It has either even or odd symmetry |
| B. | It has half wave symmetry |
| C. | even/odd symmetry and half wave symmetry |
| D. | It is even in one quarter and odd in the other |
| Answer» D. It is even in one quarter and odd in the other | |
| 8. |
How can we define the coefficients half wave symmetry when n is even? |
| A. | a<sub>n</sub>=0 and b<sub>n</sub>=0 and a<sub>0</sub>=0 |
| B. | a<sub>n</sub>=4/T‚à´x(t)cos(nwt)dt and b<sub>n</sub>=0= a<sub>0</sub> |
| C. | a<sub>n</sub>=4/T‚à´x(t)sin(nwt)dt and b<sub>n</sub>=4/T‚à´x(t)cos(nwt)dt and a<sub>0</sub>=0 |
| D. | a<sub>n</sub>=4/T‚à´x(t)sin(nwt)dt and b<sub>n</sub>=4/T and a<sub>0</sub>=0 |
| Answer» B. a<sub>n</sub>=4/T‚Äö√Ñ√∂‚àö‚Ƭ¨¬•x(t)cos(nwt)dt and b<sub>n</sub>=0= a<sub>0</sub> | |
| 9. |
How can we define half wave symmetry? |
| A. | x(t) = -x(t±T) |
| B. | x(t) = x(t±T/2) |
| C. | x(t) = x(t±T) |
| D. | x(t) = -x(t±T/2) |
| Answer» E. | |
| 10. |
What are the values of an and bn when the signal is even? |
| A. | a<sub>n</sub>=0 and b<sub>n</sub>=0 |
| B. | a<sub>n</sub>=0 and b<sub>n</sub>=4/T‚à´x(t)sin(nwt)dt |
| C. | a<sub>n</sub>=4/T‚à´x(t)cos(nwt)dt and b<sub>n</sub>=0 |
| D. | a<sub>n</sub>=4/T‚à´x(t)sin(nwt)dt and b<sub>n</sub>=4/T‚à´x(t)cos(nwt)dt |
| Answer» C. a<sub>n</sub>=4/T‚Äö√Ñ√∂‚àö‚Ƭ¨¬•x(t)cos(nwt)dt and b<sub>n</sub>=0 | |
| 11. |
What are the values of an and bn when the signal is even? |
| A. | a<sub>n</sub>=0 and b<sub>n</sub>=0 |
| B. | a<sub>n</sub>=0 and b<sub>n</sub>=4/T‚à´x(t)cos(nwt)dt |
| C. | a<sub>n</sub>=4/T‚à´x(t)cos(nwt)dt and b<sub>n</sub>=0 |
| D. | a<sub>n</sub>=4/T‚à´x(t)sin(nwt)dt and b<sub>n</sub>=4/T‚à´x(t)cos(nwt)dt |
| Answer» D. a<sub>n</sub>=4/T‚Äö√Ñ√∂‚àö‚Ƭ¨¬•x(t)sin(nwt)dt and b<sub>n</sub>=4/T‚Äö√Ñ√∂‚àö‚Ƭ¨¬•x(t)cos(nwt)dt | |
| 12. |
What is the product of an even signal and odd signal? |
| A. | Even signal |
| B. | Odd signal |
| C. | Mixture of even and odd |
| D. | Odd signals sometimes |
| Answer» C. Mixture of even and odd | |
| 13. |
What is the function of an even signal? |
| A. | x(t) = -x(t) |
| B. | x(t) = x(-t) |
| C. | x(t) = -x(-t) |
| D. | x(t) = x(t+1) |
| Answer» C. x(t) = -x(-t) | |
| 14. |
How can fourier series calculations be made easy? |
| A. | Using symmetry conditions |
| B. | Using formula |
| C. | Using integration |
| D. | Calculations are easy anyways |
| Answer» B. Using formula | |