5 answers 5 answers
2.4k
2.4k views
Rafi told Mary, "I am thinking of watching a film this weekend." The following reports the above statement in indirect speech:Rafi told Mary that he _______ of watching a...
2 answers 2 answers
2.3k
2.3k views
Permit : ________ :: Enforce : Relax (By word meaning)AllowForbid LicenseReinforce
3 answers 3 answers
880
880 views
Given a fair six-faced dice where the faces are labelled $\text{‘1’, ‘2’, ‘3’, ‘4’, ‘5’, } \text{and ‘6’,}$what is the probability of getting a $\text{‘1’}$ on the first ...
3 answers 3 answers
959
959 views
A recent survey shows that $65 \%$ of tobacco users were advised to stop consuming tobacco. The survey also shows that $3$ out of $10$ tobacco users attempted to stop us...
2 2 answers
1.2k
1.2k views
How many triangles are present in the given figure?$12$ $16$$20$$24$
2 2 answers
866
866 views
Students of all the departments of a college who have successfully completed the registration process are eligible to vote in the upcoming college elections. However, by ...
3 3 answers
1.8k
1.8k views
Which one of the following options represents the given graph?$f(x)=x^{2} 2^{-|x|}$$f(x)=x 2^{-|x|}$$f(x)=|x| 2^{-x}$$f(x)=x 2^{-x}$
2 2 answers
923
923 views
Which one of the options does NOT describe the passage below or follow from it?We tend to think of cancer as a 'modern' illness because its metaphors are so modern. It is...
4 answers 4 answers
5.8k
5.8k views
The digit in the unit's place of the product $3^{999} \times 7^{1000}$ is _________.$7$$1$$3$$9$
3 3 answers
1.6k
1.6k views
A square with sides of length $6 \mathrm{~cm} $ is given. The boundary of the shaded region is defined by two semi-circles whose diameters are the sides of the square, as...
1 1 answer
765
765 views
For a given vector $\mathbf{w}=\left[\begin{array}{lll}1 & 2 & 3\end{array}\right]^{\mathrm{T}}$, the vector normal to the plane defined by $\mathbf{w}^{\mathrm{T}} \math...
0 0 answers
808
808 views
For the block diagram shown in the figure, the transfer function $\frac{\text{Y(s)}}{\text{R(s)}}$ is$\frac{2s+3}{s+1}$ $\frac{3s+2}{s-1}$ $\frac{s+1}{3s+2}$ $\frac{3s+2}...
0 0 answers
583
583 views
In the Nyquist plot of the open-loop transfer function$$G(s)H(s) = \frac{3s+5}{s-1}$$corresponding to the feedback loop shown in the figure, the infinite semi-circular ar...
0 0 answers
324
324 views
Consider a unity-gain negative feedback system consisting of the plant $G(s)$ (given below) and a proportional-integral controller. Let the proportional gain and integral...
0 0 answers
642
642 views
The following columns present various modes of induction machine operation and the ranges of slip$$\begin{array}{ll} \qquad \qquad\textbf{A} & \qquad \textbf{B} \\ \quad...
1 1 answer
936
936 views
A $10-\text { pole, } 50 \mathrm{~Hz}, 240 \mathrm{~V},$ single phase induction motor runs at $540 ~\mathrm{RPM}$ while driving rated load. The frequency of induced rotor...
0 0 answers
393
393 views
A continuous-time system that is initially at rest is described by $$ \frac{d y(t)}{d t}+3 y(t)=2 x(t),$$ where$x(t)$ is the input voltage and $y(t)$ is the output voltag...
0 0 answers
397
397 views
The Fourier transform $X(\omega)$ of the signal $x(t)$ is given by$$\begin{aligned}X(\omega) & =1, \text { for }|\omega|<W_o \\& =0, \text { for }|\omega|>W_0\end{aligned...
0 0 answers
601
601 views
The $\text{Z}$-transform of a discrete signal $\text{x[n]}$ is$\text{X(z)}=\frac{4 z}{\left(z-\frac{1}{5}\right)\left(z-\frac{2}{3}\right)(z-3)}$ with $\text{ROC=R}$ Whic...
0 0 answers
773
773 views
For the three-bus power system shown in the figure, the trip signals to the circuit breakers $\text{B}_1$ to $\text{B}_9$ are provided by overcurrent relays $\text{R}_1$ ...
0 0 answers
347
347 views
The expressions of fuel cost of two thermal generating units as a function of the respective power generation $P_{G 1}$ and $P_{G 2}$ are given as $F_{1}\left(P_{G 1}\rig...
0 0 answers
583
583 views
The four stator conductors $\left(\mathrm{A}, \mathrm{A}^{\prime}, \mathrm{B}\right.$ and $\left.\mathrm{B}^{\prime}\right)$ of a rotating machine are carrying $\mathrm{D...
0 0 answers
549
549 views
The chopper circuit shown in figure (i) feeds power to a $5 \text { A DC}$ constant current source. The switching frequency of the chopper is $100 ~\mathrm{kHz}.$ All the...
0 0 answers
692
692 views
In the figure, the vectors $\mathbf{u}$ and $\mathbf{v}$ are related as: $\mathbf{A u}=\mathbf{v}$ by a transformation matrix A. The correct choice of $\mathbf{A}$ is$\le...
0 0 answers
579
579 views
One million random numbers are generated from a statistically stationary process with a Gaussian distribution with mean zero and standard deviation $\sigma_o$.The $\sigma...
0 0 answers
297
297 views
A semiconductor switch needs to block voltage $\text{V}$ of only one polarity $\text{(V>0)}$ duringOFF state as shown in figure (i) and carry current in both directions d...
0 0 answers
467
467 views
Which of the following statement(s) is/are true? If an $\text{LTI}$ system is causal, it is stableA discrete time $\text{LTI}$ system is causal if and only if its respons...
0 0 answers
438
438 views
The bus admittance $\left(Y_{\text {bus }}\right)$ matrix of a $3$-bus power system is given below.Considering that there is no shunt inductor connected to any of the bus...
0 0 answers
1.1k
1.1k views
The value of parameters of the circuit shown in the figure are $\qquad R_{1}=2 \Omega, R_{2}=2 \Omega, R_{3}=3 \Omega, L=10 \mathrm{mH}, C=100 \mu \mathrm{F}$ For time $t...
0 0 answers
405
405 views
A separately excited $\text{DC}$ motor rated $400 \mathrm{~V}, 15 \mathrm{~A}, 1500\mathrm{~ RPM}$ drives a constant torqueload at rated speed operating from $400 \mathrm...