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Choose the word or phrase which is nearest in meaning to the key word:
Pilfer
The following question comprises two words that have a certain relationship between them followed by four pairs of words. Select the pair that has same relationship as the original pair of words
Fox : Cunning
Replace the phrase printed in bold to make it grammatically correct ?
A twentyfirst century economy "cannot be held" hostage by power cuts nor travel on nineteenth century roads.
Improve the sentence with suitable options by replacing the underlined word.
He "lay" on the grass enjoying the sunshine.
Fill in the blanks :
At times, we are all ______ to be mistaken.
There are two solutions of wine and water, the concentration of wine being 0.4 and 0.6 respectively. If five liters of the first solution be mixed with fifteen liters of the second, find the concentration of wine in the resultant solution.
Rajiv bought some apples at the rate of 25 for Rs. 400 and an equal number at the rate of 30 for Rs. 270. He then sold all at the rate of 10 for Rs. 180. Find his profit/loss percentage
Out of 10 persons working on a project, 4 are graduates. If 3 are selected, what is the probability that there is alteast one graduate among them ?
2 men and 3 boys can do a piece of work in 10 days, while 3 men and 2 boys can do the same work in 8 days. In how many days can 2 men and 1 boy do the work ?
In an exam, 60% of the candidates passed in Maths and 70% candidates passed in English and 10% of the candidates failed in both the subjects, 300 candidates passed in both the subjects. Find the total number of candidates appeared in the exam, if they took test in only two subjects that is Math and English.
In the figure, the value of resistor R is (I 5) ohms, where I is the current in amperes. The value of current I is
The velocity of propagation of electromagnetic wave in an underground cable with relative permittivity of 9 is
The function shown in the figure can be represented as
Consider an LTI system with impulse response h(t) = e^{5t }u(t). Determine the output of the system for the input x(t) = 5 u(t)
A rectangular pulse x(t) is shown in the figure. Determine the value of
If and f(t) is as t → ∞ . Determine the value of K
In the signal flow graph shown in the given figure, the value of C/R ratio is
What is the openloop transfer function for an unity feedback system having root locus shown in the following figure ?
The digital circuit shown in the figure works as a
The simplified form of Boolean function F(A,B,C) implemented by the given 3 × 8 decoder is
The contents of the accumulator in an 8085 microprocessor is altered after the execution of the instruction
Assuming that all the diodes are ideal in figure, the current in the diode D_{2} is
Determine the upper and lower threshold voltage of the schmitt trigger shown below :
The transistor in the given circuit, should always be in saturation region. Take V_{CE} (sat) = 0V and V_{BE} = 0.7V. the minimum value of R_{C} is
A differential amplifier has input at non inverting terminal is 1050 μV and at inverting terminal 950 μV. What is the error in the differential output if CMRR is 1000.
Which one of the following type of negative feedback increases the input resistance and decreases the output resistance of an amplifier ?
The spectral density and auto correlation function of white noise are respectively.
For a random variable x having the probability density function is shown in the figure, what are the variance of random variable.
An amplitude modulated signal is given as, S(t) = 100 Cos 2pf_{c}t 50 Cos 2pf_{m}t.Cos 2pf_{c}t, where f_{c } f_{m}. and f_{c} is the carrier frequency and f_{m} is the modulating signal frequency. The power efficiency is.
Signal x(t) = 4Sinc^{2} 100t. Sin 500pt .At what sampling frequency should this signal be sampled to avoid aliasing ?
The solution of differential equation dy = (1y) dx is
The rank of the matrix A is 2, when K is
Given If C is a counterclockwise path in the zplane such that z  i = 1, the value of is
In the circuit shown in figure, determine the maximum power absorbed by the load resistance R_{L}
In the circuit shown below, the switch is closed at t = 0. What is the initial value of the current through the capacitor C.
Determine the zparameter for the network shown below.
At which frequency (in rad/sec) the thevenins equivalent impedance looking at terminals AB becomes purely resistive?
Consider if y(t) = Ae^{t} for then value of A is
The 4point DFT of sequence x[n] = [1,2,2,1] is
The output y(t) of a continuoustime system for the input x(t) is given by . Which one of the following is correct ?
For the NMOS and PMOS shown in the figure are matched and = 1mA/V^{2} and V_{ n} = V_{ p} = 1 V. Determine V_{0}
Determine the region of operation of BJT in the given circuit.
In the silicon BJT circuit shown below. Assume the emitter area of transistor Q_{2} is two time of area of Q_{1}. The value of I_{o} { Let b of the transistors are very large}
Determine the current i_{o} in the given circuit.
Consider a bar of silicon in which a hole concentration profile describe by P(x) = P_{0}.e^{x/Lp}. Find the current at x = 0, given P_{0} = 10^{16}/cm^{3}, L_{p} = 1 mm and crosssectional area of the bar is 100 mm^{2} and D_{p} = 12 cm^{2}/sec.
A system with the open loop transfer function is connected in a negative feedback gain of unity. What is the value of K for which the system is unstable.
In the system shown below x(t) = e^{2t} u(t). Determine the output y(t) in steady state.
The polar diagram of a conditionally stable system for open loop gain K = 1 is shown in the figure. The open loop transfer function of the system is known to be stable. The closed loop system is stable for
The sensitivity of transfer function with respect to the parameter K is 0.5, Determine the value of K
Given two binary FSK signals i = 1, 2.The minimum frequency separation of these two signals such that they are orthogonal is
A block code is transmitted in NRZ inventoneone format with voltage levels
6V → ‘1’
6V → ‘0’
Three code words are sent : 10010, 11110, 01001. Over these three transmitted code words the average voltage is
A signal is given by,
γ(t) = s(t) n(t)
where s(t) = 20 Cos2π4000t 40 Cos2π2000t and the noise n(t) is white with power spectral density η_{0} = 1 W/Hz. The total received signal is put through a band pass filter with pass band between 100 to 110 Hz. The value of SNR at the output of filter is
The base band signal m(t) is recovered from the DSBSc signal s(t) = m(t). Cos2πf_{c}t, by multiplying s(t) by the locally generated carrier Cos (2πf_{c}t φ). The product is passed through a LPF which rejects the double frequency signal. If the base band signal is band limited to 4KHz, what is the minimum value of f_{c} for which m(t) can be recovered by filtering ?
A plane wave in free space is incident normally on a large block of material . which occupies z > 0. If the incident electric field is = 10 Cos (ωt z) V/m, the reflected magnetic field is :
A plane wave with is incident normally on a thick plane conductor lying in the XY plane. Its conductivity is 6 × 10^{6} s/m and surface impedance is 5 × 10^{4}
?. The skin depth of conductor is
The volume of the paralleopipe whose sides are given by is
A number in 4 bit 2 5 complement representation is 1101. This number when stored using 8bits will beA number in 4 bit 2’5 complement representation is 1101. This number when stored using 8bits will be
Four variable Kmap is shown in the figure. The essential prime implicants are
An 8085 microprocessor is interfaced to a 8KB RAM as shown below. The address range of the RAM is
If z = x – iy and = p iq, then is
The Newton – Raphson method is used to find the roots of the equation f(x) = x  cosπx If the initial guess for the root is 0.5, then the value of x after the first iteration is
The eign value of the matrix are,
22 docs263 tests

22 docs263 tests
