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A lent Rs. 5000 to B for 2 years and Rs. 3000 to C for 4 years on simple interest at the same rate of interest and received Rs. 2200 in total from both as interest. The rate of interest per annum is.
Amit rows a boat 9 kilometres in 2 hours downstream and returns upstream in 6 hours. The speed of the boat (in kmph) is:
The sentences given with blanks are to be filled with an appropriate word(s). Four alternatives are suggested for each question. For each question, choose the correct alternative and click the button corresponding to it.
They abandoned their comrades ______the wolves.
In the following question, out of the four alternatives, select the word opposite in meaning to the given word.
Turgid
Direction: Study the following information carefully and answer the given questions:
The following pie chart shows the percentage distribution of total number of Apples (Dry + Wet) sold in different days of a week :
The pie chart 2 shows the percentage distribution of total number of Apples (Wet) sold in different days of a week.
Find the ratio of Apples (Dry + Wet) sold on Tuesday to that of the Apples (Wet) sold on Thursday?
Directions: In each of the questions below, some statements are given followed by some conclusions. You have to consider the statements to be true even if they seem to be at variance with commonly known facts. You have to decide which of the following conclusions logically follows from the given statements. Give answer.
Statements:
Some jacket is shirt.
Some shirts are trouser.
No shoes are tshirt.
All trousers are shoes.
All pants are tshirt.
Conclusions:
I. All shirts being tshirt is a possibility.
II. Some shoes are trouser.
III. Some jackets are tshirt.
IV. Some shirts being tshirt is a possibility.
The question below consists of a set of labelled sentences. These sentences, when properly sequenced form a coherent paragraph. Select the most logical order of sentences from among the options.
P: July 1969 was to see a transformed Indira Gandhi.
Q: Quite a few people contributed with ideas.
R: She sounded the bugle through her historic ‘Note on Economic Policy and Programme’ that was circulated among delegates at Bangalore on July 9, 1969.
S: But the pivot was P.N.Haksar who gave shape, structure and substance with the help of some of his colleagues in the Prime Minister’s Secretariat.
Direction: Which of the following is the MOST SIMILAR in meaning to the given word?
Remnant
Direction: Read the information carefully and give the answer of the following questions:
Total number of children = 2000
If twoninths of the children who play football are females, then the number of male football children is approximately what percent of the total number of children who play cricket?
Direction: Study the following information carefully and answer the given questions.
Seven people, P, Q, R, S, T, W and X sitting in a straight line facing north, not necessarily in the same order. R sits at one of the extreme ends of the line. T has as many people sitting on his right, as on his left. S sits third to the left of X. Q sits on the immediate left of W. Q does not sit at any of the extreme ends of the line.
If all the people are made to sit in alphabetical order from right to left, the positions of how many people will remain unchanged?
The figure shows the circuit of a gate in the resistor transistor logic (RTL) Then the circuit represent which gate?
For the given p+ n junction diode the minority carrier life time in the n region is Υ_{P} = 1.1 μsec. If the excess minority charges present in the n region at any time t is given as Q_{P}(t) then Q_{P}(t) at t = 1.5 μsec is _____ μC?
For the given network, the power given to the load is ____ kW? [Assume R =1 Ω and ideal diode]
V = 100. sinωt
A current source with an internal resistance of R_{S}, supplied power to load R_{L}. The plot of power delivered as a function of load R_{L} is?
where (x) denotes greatest integer
For given system
Angle of arrival is?
A system is shown in figure as follows
Where, h_{k} (n) = δ [n – k.(1/2)^{k}]
Then value of overall impulse response of above system h(n) at h = 2 is ______?
A square wave with frequency = 5 kHz
This signal is passed through an ideal lowpass filter with 0 dB of passband gain and 10 kHz of cutoff frequency. The filtered signal is subsequently buried additively into a zeromean noise processed with onesided power spectral density (PSD) of 20 nW Hz^{–1}. Upto a frequency of 2.5 MHz. The PSD of noise is zero beyond 2.5 MHz. The signal to noise ratio of the output is _______dB.
For a MOD 30 ripple counter, the maximum operating frequency is 8 MHz. The propagation delay of each flip flop must be _________nsec?
For a successive approximation type of ADC shown.
If V_{a} = 8V and resolution of D/A = 0.25 volt
Then the error voltage between V_{a} and SAR output at 5^{th} clock is_______volt?
For the transfer function G(jω) = 6 + jω. The corresponding Nyquist plot for positive frequency has the form
Consider a random process as z(t) = x(t) + y(t)
Where x(t) and y(t) are two random processes with zero mean and they are individually WSS. The PSD of x(t) is S_{x}(f) and y(t) is S_{y}(f). Then PSD of z(t) is?
A digital circuit is designed in a way that it accept 3bit number and generate it’s square. The circuit is to be designed using ROM with minimum hardware. Then the size of ROM is _______?
Eight voice signals, each limited to 4 kHz and sampled at Nyquist rate, are converted into binary PCM signal using 256 quantization levels. The bit transmission rate for the timedivision multiplexed signal will be (in kbps)____
When a relatively small d.c. voltage is applied across a thin slice of Gallium Arsenide with thickness of order of few tenths of a micrometer and the voltage gradient across the slice is in excess of about 3300 V/cm, then the negative resistance will manifest itself. Which of the following devices operate based on the above phenomenon?
A signal of bandwidth 100 MHz and strength 10mW is transmitted through a transmitter through a cable that has 40 dB loss. If N_{0}/2 = 0.5 × 10^{−20}ω/Hz then the signal to noise ratio at the input of the receiver is
In a superheterodyne AM receiver, the image channel selectivity is determined by :
Consider a medium such that μ=μ_{0},ε = 81ε_{0},σ = 20S/m. The frequency at which the conduction current density is 10 times the displacement current density in magnitude is ____(GHz)
A 78 Ω lossless planar line was designed but did not meet a requirement. The fraction of the widths of strip (in %)should be added or removed to get the characteristic impedance of 75Ω is ___
A 16K × 8 ROM IC is interfaced to 8085 microprocessor. What is the address space?
A 16 bit computer can address 1M word and has 128K words installed from 64K 1 chips. Calculate the no. of chips required and no. of bits of address bus that allows to select the memory chips
Maximum number of Self Dual possible for 4variable function.
A minimized Boolean expression is a combination of
If then which of the following holds
If dt/dx = sin(t + x) + cos(t + x) then find out the value of t at x = π/3 correct upto 2 decimal places. It is given that t = π/2 at x = 0
A poisson variate satisfies P(x = 1) = 0.5 P(x = 2). Then find the value of P(x = 4) is
Find the general solution of the equation
A discrete time signal with input as x[n] has impulse response h[n]=kδ[n] where k is constant. The output y[n] of the system is given as:
Find the complete solution of the state equation given below
Given the initial condition as
For the given system, determine the overall response Y(s) of the system corresponding to both inputs.
An integral controller is used for speed control with a setpoint of 120 rpm within a range of 100 to 150 rpm. The controller output is 22% initially. The constant KI for controller output is 0.15%/sec for unit percentage error. If the speed goes to 105 rpm, then the controller output after two seconds for a constant error e_{p} is (in %).
A junction diode is fabricated in which the p and n regions are doped equally with 5 × 10^{16} atoms/cm^{3}. Assume n_{i} = 1.5 × 10^{10}/cm^{3}. If the crosssectional area of the junction is 20 μm^{2}, the magnitude of the charge stored on either side of the junction while no external bias being applied would be – (Assume ∈s = 1.04 x 1014 F/cm, V_{0} (barrier potential) = 0.78V)
A thin Ptype silicon sample is uniformly illuminated with light which generates excess carriers. The recombination rate is directly proportional to
Two ideal pn junction have exactly the same electrical and physical parameters except for the band gap of the semiconductor materials. The first has a bandgap energy of 0.525 eV and a forwardbias current of 10 mA with V_{a} = 0.255 V. The second pn junction diode is to be designed such that the diode current I = 10μA at a forwardbias voltage of V_{a} = 0.32 V. The bandgap energy of second diode would be_____ (eV)
Consider the given figure and calculate the feedback factor of the wave generator if R1 = 5kΩ, R2 = 20kΩ, R = 500Ω and C = 10 µF. Also calculate the one cycle period?
Calculate the hysteresis width (in Volts) for an inverting Schmitt trigger with feedback fraction 0.5. Assume the supply voltage to be 10V.
The combination of resistors is shown in figure below. If R_{1} is operated at T and R_{2} is operated at temperature (T+t) ,then the equivalent noise temperature if the circuit is
Decide the stability of the system whose characteristic equation is given by s^{5} + 2s^{4} + 5s^{3} + 10s^{2} + 4s + 8 = 0
Consider the electronic PID controller shown in figure below
If R_{1} = R_{2} = R and C_{1} = C_{2} = C_{2} = C, then find K_{p}, K_{d} and K_{i}
Two point charges of 10 µC at point M and 20 µC at point N exerts a force of 4.8 N and 10 N respectively on a point charge of 40 µC at point O. Determine the electric field intensity at point O.
An opamp is used in a feedback configuration having open loop forward gain value of 50 as shown. The feedback gain is β in the circuit, the feedback circuit is given below. For which of the combination of R_{1} and R_{2} respectively would the configuration work as an oscillator?
Find the h parameters of the following circuit
The expression for unit tangent ∅ = e^{2x} casyz at the or igin at the or igin in the direction of the tangent to curve x = a sin t, y = a cos t,z = 2α sin t, at t = T/4
Root locus of 2s(s+4)+k(s+8) is a circle. The coordinates of the centre of the circle?
In the following table, x is a discrete random variable and p(x) is the probability density. The difference between the variance & the standard deviation is
Find the state transition diagram for the logic circuit shown below
Consider the following circuit consisting of three Dflip flops.
If all the flipflops were reset to 0 at power on, then the total number of different output states represented by the counter ABC is equal to
Consider a silicon PN junction at T = 300K with current density 3.6 10^{11} A/cm^{2}. If the photocurrent density is 10 mA/cm^{2}. Then find the opencircuit voltage (in V) of a solar cell when the solar intensity is increased by a factor of
Assume thermal voltage V_{T} = 26 mV
DTFT of x(n) is X(ω). Hence x(n) = (0.5)^{n}u(n). Then the time signal corresponding to X^{2}(ω) is
A varying magnetic flux linking a coil is φ=1/3 λt^{3}. If the value of λ = −1Wb/s^{2}, then at what time the induced EMF is 9V?
Determine length of a cavity resonator(rectangular) if it has dimensions a = 3cm, b = 2cm, and is excited by TE_{101 }mode at 30GHz frequency.
If directive gain of a halfwave dipole is 2.64 W/W, and ohmic losses is 8Ω, then determine its power gain(in dB).
23 docs263 tests

23 docs263 tests
