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A die is thrown twice. What is the probability of getting a sum 7 from both the throws ?
Find the sentence that has a mistake in grammar or usage. If you find no mistake, mark choice 4.
In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select ‘No Error’.
I suppose no place is more (1)/ better than (2)/ home on Christmas. (3)/ No error (4)
Directions: The following verbal analogy has two parts. One part is complete while the other one is incomplete. Complete the portion that is incomplete by selecting the right choice from the given options.
Son : Nuclear : : ______ : Extended
Direction: In the following question, a sentence, with a part of it missing and represented by a blank is given. Select the best out of the five answer choices given, to make the sentence complete and coherent (coherent means logically complete and sound).
__________ or else they would not keep electing him year after year.
Directions: Choose the sentence that best combines the given sentences.
The federal government has diversity of jobs and geographic locations. The federal government offers flexibility in job opportunities that is unmatched in the private sector.
Direction: Study the information carefully and answer the questions given below.
P is standing north of Q at a distance of 6m. R is standing toward east of P at a distance of 6m. R is to the north of S and distance between them is 6m. P is facing north direction, R is facing east, S is facing North and Q is facing towards west direction. All of them walk straight for 3m.
What is the distance between the final position of P and Q?
The first term of an AP is equal to the sum of the common ratio of a GP and the first term of the GP, which is equal to the common difference of the AP. If the sum of the first two terms of the GP is equal to the sum of the first 2 terms of the AP, then the ratio of the first term of the GP to the first term of the AP is
In a class test, A scored 51 marks. The test had 4 sections. In the second section, A scored 7 marks more than in the first section, and in the third section, A scored 7 marks more than in the second section. If A did not score at all in the fourth section, how much did A score in the second section?
Ramu is planning to get wireless internet service at his house. Two service providers A and B offer different rates as shown in the table below.
If Ramu plans on using 25 hours of internet service per month, which of the following statements is true?
Find the unit normal vector of the cone of revolution z^{2} = 9x^{2} + 15y^{2} − z^{2} at a point (1,0,3)
Let Q√γ be the BER of a BPSK system over an AWGN channel with twosided noise power spectral density N_{0}/2. The parameter γ is a function of bit energy and noise power spectral density.
A system with two independent and identical AWGN channels with noise power spectral density N_{0}/2 is shown in the figure. The BPSK demodulator receives the sum of outputs of both the channels.
BER of this system is Q(b√γ ), then the value of b is ________.(Answer up to three decimal places)
The transfer function of a system is 10/(s^{2}+2s+10). Find the nature of the given system.
The surface ρ = 2, ρ = 4, Φ = 45°, Φ = 135°, z = 3 and z = 4 define a closed surface. The total area of the enclosing surface is _____. (Answer up to two decimal places)
There are two energy levels E_{1} and E_{2} . E_{1} is E eV above the fermi level and E_{2} is E eV below the fermi level.
P_{1 }= the probability of E_{1 }being occupied by an electron.
P_{2}= the probability of E_{2} being empty.
Then, which of the following is correct?
For a Hertz dipole antenna, the half power beam width (in degrees) in the Eplane is _____.(Answer up to the nearest integer)
Consider the circuit shown in the figure below
v(t) = 80e^{−1000t}V ;t>0
i(t) = 5e^{−1000t}mA ;t>0
the energy dissipated (in μ) by the resistor for 0 < t < 0.6 ms will be approximately
A die is thrown 100 times. Getting an even number is considered a success. The variance of the number of successes is ______ (Answer up to the nearest integer)
While analysing a twoport network, which of the following parameters are obtained when oneport variables are expressed in terms of the other port variables?
By simplifying the given Boolean function, Y = ABC + A'B + ABC' + AC, the minimum number of literals is
The impulse response of a second order under damped system starting from rest is given by C(t) = 12.5e^{8t}cos6t
What are the responsive value of natural frequency and damping ratio of the system?
Which of the following conversions is performed by the circuit shown in figure?
For the CE amplifier shown, calculate value of lower cutoff frequency F_{L} (in Hz) due to C_{2}
The phenomenon known as "Early Effect" in a bipolar transistor refers to a reduction of the effective basewidth caused by
Calculate the hysteresis width (in Volts) for an inverting Schmitt trigger with feedback fraction 0.5. Assume the supply voltage to be 10V.
Consider the following graphs:
Which of the these graphs is/are nonplanar?
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?
The current flowing through the resistance R in the given circuit has the form P cos 4t, where P is
In a superheterodyne AM receiver ,the image channel selectivity is determined by :
The approximate Bode magnitude plot of a minimumphase system is shown in the figure. The transfer function of the system is
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 ___
Consider the following values for the circuit shown below:
1. V_{R} = 100√2V
2. I = 2A
3. L = 0.125 H
Which of the above values are correct?
A 16 bit computer can address 1M word and has 128K words installed from 64K x 1 chips. Calculate the no. of chips required and no. of bits of address bus that allows to select the memory chips
The impulse response of an LTI system is h (t) = δ^{(2)}(t). The step response is
A minimized Boolean expression is a combination of
f X (t) is a stationary process having a mean value E [X (t)] = 3 and auto correlation function R_{xx} (T) = 9 + 2e^{[T]}. The variance of random variable Y = dt will be ____. (Answer up to two decimal places)
Calculate the value of ∫_{0}^{π/6 }cos^{2}3θsin^{3}6θdθ.
Consider the following statements regarding capability curves of a synchronous generator:
The MVA loading should not exceed the generator rating.
The field current should not be allowed to exceed a specified value determined by field heating.
The MW loading should not exceed the rating of the prime mover.
The load angle must be more than 90°.
Which of the above statements are correct?
A poisson variate satisfies P(x = 1) = 0.5 P(x = 2). Then find the value of P(x = 4) is
In a material, the magnetic field intensity is H = 1200 A/m when B = 2 Wb/m^{2}. When H is reduced to 400 A/m, B = 1.4 Wb/m^{2}, the change in the magnetization M (in kA/m) is _______. (Answer up to the nearest integer)
Study the standard negative feedback configuration with G(s)
= s^{2}+0.2s+100/s^{2}−0.2s+100 and H(s) =0.5. Find the number of clockwise encirclements of (1, 0) in the Nyquist of the Loop transfer function G(s) H(s) will be
If u = , then the value of is (Answer up to the nearest integer)
Which of the following signal is obtained on integrating ramp signal?
A singlephase, 230 V, 50 Hz AC mains fed fully controlled bridge rectifier is feeding a 200 V DC, 1500 rpm, 10 A separately excited DC motor with a ripplefree continuous current under all operating conditions. The armature resistance is 1 Ω and the motor torque is 15 Nm.
What will be the motor speed (in rpm) be at a firing angle of 30°?
(Answer up to one decimal place)
For a Si, one sided abrupt junction with N_{A} = 2 × 10^{19}/cm^{3} & N_{D} = 8×10^{15}/cm^{3} & n_{i }= 9.65×10^{9}/cm^{3}. The junction capacitance at zero bias is ______(in mF/cm^{2}). Given, ε_{r} = 11.7
Consider the following statements regarding corona:
It causes radio interference.
It attenuates lightning surges.
It causes power loss.
It is more prevalent in the middle conductor of a transmission line employing flat conductor configuration.
Which of the above statements are correct?
A semiconductor of thickness 0.5μm is illuminated with monochromatic light of hϑ = 2eV, and the absorption coefficient of semiconductor ⋅α = −5 × 10^{−}^{4}cm^{−1}. If the incident power is 10mW ( Assume semiconductor has perfect quantum efficiency ) then number of photons given from recombination events per second is photons/sec ,
In the current mirror circuit shown below, the transistor parameters are V_{BE} = 0.7 V, β = 50 and the Early voltage is infinite. Assume transistor are matched.
The output current I_{o} (in μA) is _______. (Answer up to the nearest integer)
Calculate Z_{th} across the terminals A and B:
For a particular semiconductor material following parameters are observed:
μ_{n} = 1000 cm^{2}/V  s, μ_{p} = 600 cm^{2}/V  s, N_{c} = N_{v} = 10^{19} cm^{3}
These parameters are independent of temperature. The measured conductivity of the intrinsic material = 10^{6} (Ω cm)^{1} at T = 300 K. The conductivity (Ω cm)^{1} at T = 500 K is ___ × 10^{3 }(Answer up to two decimal places)
Consider the causal discrete time system shown below, minimum magnitude of K for which system become unstable is
A uniformly doped silicon epitaxial npn bipolar transistor is fabricated with a base doping of N_{B} = 3 x 10^{16} cm^{3} and a heavily doped collector region with N_{c} = 5 x 10^{17} cm^{3}. The neutral base width is x_{B} = 0.7 when V_{BE} = V_{BC }= 0.
The V_{BC} (in V) at punch through is (Answer up to one decimal place)
In the given oscillator circuit, find the values of C_{1} and C_{2} that would make the bridge balanced
Consider the following circuit:
The flipflop are positive edge trigger red D FFs. Each state is designated as a two bit string Q_{0}, Q_{1}. Let the initial state be 00. The state transition sequence is
Two identical transistors are cascaded as follows with β = 100. The overall voltage gain would be
For the system shown below, the steady state error component due to unit step disturbance is 0.000012 and steady state error component due to unit ramp input is 0.003. The value of K_{1} and K_{2} are respectively
A load of 1 KΩ is connected to a diode detector which is shunted by a 10kpF capacitor. The diode has a forward resistance of 1 Ω. The maximum permissible depth of modulation, so as to avoid diagonal clipping and modulating signal frequency of 10kHz will be
The discrete Fourier transform of a discrete sequence x [n] is XDFT [k] = {1, 2, 3, 4} DFT of the sequence g [n] = x [n  2] is
In an airfilled rectangular waveguide with a = 2.286cm and b = 1.016cm , the ycomponent of the TE mode is given by
Then the intrinsic impedance (in Ω) is
In the circuit shown in figure, a battery of 6 V is charged by a 1f one pulse thyristor controlled rectifier. A resistance R is to be inserted in series with the battery to limit the charging current to 4 A. The value of R is
The intermediate frequency of an AM superheterodyne receiver is 460kHz and the local oscillator frequency {f_{LO} ) of the mixer is set at the higher of the two possible values, such that f_{LO} > f_{c} always. If the carries frequency {f_{C} of the receiver signal is 700kHz, then the carrier frequency of the corresponding image signal will be kHz
A singlephase 230 V, 1 kW load is connected across singlephase 230 V, 50 Hz supply through a diode. The power delivered to the load and input power factor respectively are
Pick out the 'TRUE' from the following?
Let g(x) =
Consider the composition of f and g, i.e., (f o g)(x) = f(g(x)). The number of discontinuities in (f o g)(x) present in the interval (∞ , 0) is: (Answer up to the nearest integer)
Assuming that flipflops are in reset condition initially, the count sequence observed at Q_{A} in the circuit shown is
23 docs263 tests

23 docs263 tests
