MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Network Theory Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Given a system function H(s) = \(\frac{V(s)}{I(s)} = \frac{(s+4)}{(s+3)^2}\). And i(t) is a unit step, then V(t) in the steady state is ___________ |
| A. | \(\frac{4}{9}\) |
| B. | \(\frac{4}{3}\) |
| C. | 0 |
| D. | ∞ |
| Answer» B. \(\frac{4}{3}\) | |
| 2. |
The Laplace transform of the function 6e5tcos(2t) – e7t is ______________ |
| A. | \(\frac{6(s-5)}{(s-5)^2+4} – \frac{1}{s-7}\) |
| B. | \(\frac{6(s-5)}{(s-5)^2+4} + \frac{1}{s-7}\) |
| C. | \(\frac{6(s+5)}{(s+5)^2+4} – \frac{1}{s-7}\) |
| D. | \(\frac{6(s+5)}{(s+5)^2+4} + \frac{1}{s-7}\) |
| Answer» B. \(\frac{6(s-5)}{(s-5)^2+4} + \frac{1}{s-7}\) | |
| 3. |
The Laplace transform of the function e-2tcos(3t) + 5e-2tsin(3t) is ____________ |
| A. | \(\frac{(s+2)-15}{(s+2)^2-9}\) |
| B. | \(\frac{(s+2)+15}{(s+2)^2-9}\) |
| C. | \(\frac{(s+2)+15}{(s+2)^2+9}\) |
| D. | \(\frac{(s+2)-15}{(s+2)^2+9}\) |
| Answer» D. \(\frac{(s+2)-15}{(s+2)^2+9}\) | |
| 4. |
If y(t) = 120e10x(t), then the relation is _________ |
| A. | Dynamic |
| B. | Static |
| C. | Memory |
| D. | Memoryless but not static |
| Answer» C. Memory | |
| 5. |
The values of z12 and z22 for a T circuit having resistances 20 Ω each is _____________ |
| A. | 40, 20 |
| B. | 40, 60 |
| C. | 20, 40 |
| D. | 40, 40 |
| Answer» D. 40, 40 | |
| 6. |
The values of z11 and z21 for a T circuit having resistances 20 Ω each is _____________ |
| A. | 40, 20 |
| B. | 40, 60 |
| C. | 60, 40 |
| D. | 40, 40 |
| Answer» B. 40, 60 | |
| 7. |
Barlett’s Bisection Theorem is applicable to ___________ |
| A. | Unsymmetrical networks |
| B. | Symmetrical networks |
| C. | Both unsymmetrical and symmetrical networks |
| D. | Neither to unsymmetrical nor to symmetrical networks |
| Answer» C. Both unsymmetrical and symmetrical networks | |
| 8. |
The value of 2 [u (t – 1) – u (1 – 2t)] (u ( t + 1) + u (t)) at t = 3 sec is ____________ |
| A. | 0 |
| B. | 4 |
| C. | ∞ |
| D. | 1 |
| Answer» C. ∞ | |
| 9. |
A system is at rest for t < 0. It is given by \(\frac{dy}{dt}\) + 2y = u(t)sin(2t+A). If steady state is reached at t = 0, then the value of angle A is ___________ |
| A. | 0° |
| B. | 45° |
| C. | -45° |
| D. | ∞ |
| Answer» C. -45° | |
| 10. |
A system function H(s) = \(\frac{V(s)}{I(s)} = \frac{s}{(s+4)}\). For i(t) = u(t) and value of system is 0 for t<0. Then v(t) is ___________ |
| A. | 1 – e-4t |
| B. | e-4t |
| C. | e4t |
| D. | 1 + e-4t |
| Answer» C. e4t | |
| 11. |
A system function H(s) = \(\frac{25}{s^2+4s+100}\), the resonant frequency in rad/sec and bandwidth in rad/sec is ____________ |
| A. | 5, 10 |
| B. | 5, 4 |
| C. | 10, 4 |
| D. | 10, 10 |
| Answer» D. 10, 10 | |
| 12. |
For a network having 1 Ω resistor and 1 F capacitor in series, the impedance Z(s) is ____________ |
| A. | \(\frac{s+1}{s}\) |
| B. | \(\frac{s+2}{s}\) |
| C. | \(\frac{s}{s+1}\) |
| D. | \(\frac{s}{s+2}\) |
| Answer» B. \(\frac{s+2}{s}\) | |