Prepare for ISRO ICRB examinations with verified solutions covering Algorithms, Theory of Computation, Compiler Design, Computer Architecture, OS, Discrete Mathematics, and Computer Networks.
Marking scheme: +3.00 positive, -0.75 negative (ICRB Standard).
$$\frac{d}{dx} \left( x - \frac{x^3}{3!} + \frac{x^5}{5!} - \frac{x^7}{7!} + \dots \right)$$
is equal to:
Value of the integral:
$$\int_{-\infty}^{\infty} \delta(t) \sin\left(\frac{t}{\sqrt{2}}\right) dt$$is:
Which of the following statements is true?
If a random communication signal has PDF given by $P(X) = 2a e^{-b|x|}$ for all $x$, $-\infty < x < +\infty$, then:
The noise phenomena arranged in the order of their dominance when plotted as a function of increasing frequency are:
When a carrier is AM modulated by three single tone signals of modulation percentages $50\%$, $50\%$ and $20\%$, then the effective modulation index of the resulting signal is:
$8$ signals, each limited to $2\text{ kHz}$ and sampled at Nyquist rate, are converted into binary PCM signal using $256$ quantization levels. The data rate for TDM signal will be:
The bandwidth occupied by an 8 PSK modulated signal, where each of the I, Q and C data streams which form the n-tuple IQC toggle at a rate 200 Mbps, is:
Given that CNDR of 256 QAM signal operating at $12.5\text{ M Symbols/s}$ is $100\text{ dBHz}$. The value of $E_b/N_0$ (Energy-per-bit to Noise Density ratio) is:
Return loss of a stand-alone antenna is $10\text{ dB}$. One $6\text{ dB}$ attenuator with return loss of $40\text{ dB}$ is connected at the input of that antenna. What will be the approximate return loss of the combined (Antenna + Attenuator) port?
Which parameter of semiconductor diode exhibits positive temperature co-efficient?
If a transistor operates at the middle of the dc load line, an increase in the current gain will move the Q point
The relation between $I_D$ and $V_{gs}$ of a MOSFET in the saturation region is