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Statement: All bags are cakes. All lamps are cakes.
Conclusions:
I. Some lamps are bags.
II. No lamp is bag.
Deduce which of the above conclusion logically follows statements:
Man does not live by __________ alone.
Extreme focus on syllabus and studying for tests has become such a dominant concern of Indian students that they close their minds to anything ___________ to the requirements of the exam.
Select the pair that best expresses a relationship similar to that expressed in the pair:
LIGHT : BLIND
In an exam, the average was found to be 50 marks. After deducting computational errors the marks of the 100 candidates had to be changed from 90 to 60 each and average came down to 45 marks. Total number of candidates who took the exam was:
A solid 4cm cube of wood is coated with red paint on all the six sides. Then the cube is cut into smaller 1cm cubes. How many of these 1cm cubes have no colour on any side?
One of the warmest winters on record has put consumers in the mood to spend money.Spending is to be the strongest in thirteen years. During the month of February, sales of existing single family homes hit an annual record rate of 4.75 million. This paragraph best supports the statement that:
The age of father is 4 times more than the age of his son Amit. After 8 years, he would be 3 times older than Amit. After further 8 years, how many times will he be older than Amit?
Pipe A, B and C are kept open and together fill a tank in t minutes. Pipe A is kept open throughout, pipe B is kept open for the first 10 minutes and then closed. Two minutes after pipe B is closed, pipe C is opened and is kept open till the tank is full. Each pipe fills an equal share of the tank. Furthermore, it is known that if pipe A and B are kept open continuously, the tank would be filled completely in t minutes. Find t.
The Thevenin's equivalent resistance to the left of AB in figure given below is given by:
What is the time period of the sinusoidal signal
x(n) = 10 cos(0.4n)
In a radar system, the range of R_{1} is achieved at a frequency f_{1}. Then the range R_{2} at frequency R_{2} = 8f_{1} would be __________ [Neglect effect of 1 on the Beam width.]
Gate function is defined as ______________
A signal m(t) = 5 cos(2π100t) is frequency modulated a carrier. The resulting FM signal is:
The approximate bandwidth of the FM signal would be:
A system has a receiver noise resistance of It connected to an antenna with an input resistance of The noise figure of the system is:
A phase lead compensating network has its transfer function The maximum phase lead occurs at a frequency of:
The time taken for the output to settle within 2% of step input for the control system represented by is given by:
If diameter of a circular crosssectional antenna is 2m, and it is transmitted a signal at frequency 100MHz, determine the minimum distance for far field approximation.
A load impedance is to be matched to a lossless transmission line by using a quarter wave line transformer. The characteristics impedance of the quarter wave transformer.
What is the velocity of a plane wave in a lossless medium having a relative permittivity of 5 and relative permeability of unity?
A dipole antenna of/2 length has an equivalent total loss resistance is 0.5. The efficiency of antenna is:
If an electrical system is compared to a fluid system, the electrical current corresponds to the:
For the circuit shown below, the collector to emitter voltage is:
A power supply has a full load voltage of 24V. What is its noload voltage for 5% regulation?
Two 100 W, 220 V bulbs are required to be connected across a 400 volts supply. The value of resistance to be inserted in the line so that the voltage across the bulbs does not exceed 220 V is:
For a given opamp, CMMR = 10^{5} and differential gain A_{d} = 10^{5}. The commonmode gain of the opamp is:
The system of linear equations:
3x + 4y = 6
2x + 3y = 5
has:
Which of the following is a solution to the differential equation ?
The value of the integral dz is: (where C is the circle z = 1)
A fair dice is tossed two times. The probability that the second results in a value that is higher than the first toss is:
where P is a vector is equal to:
A certain multiplexer can switch one of 32 data inputs to its output. The number of control inputs in this multiplexer:
The initial of MOD16 down counter is 0110. After 37 clock pulses, the state of the counter will be:
12 MHz clock frequency is applied to a cascaded counter of modulus3 counter, modulus4 counter, and modulus5 counter. Determine the output frequency.
The value of Z_{22} (Ω) for the circuit shown below is:
An ac voltage of 220 V is applied to a pure inductance of 50 H. If the current is 5 A, the instantaneous value of voltage and current will be respectively given by:
For the circuit shown below, a resistance R is to be connected across an active network, it is given that when
(i) R = infinity, V = 5 volts
(ii) R = 0, current output of the active source is 2.5 A.
What would be the current when the value of R is 5 Ω?
The output y(t) of a continuous – time system S for the input x(t) is given by
Which one of the following is correct?
What is the output of the system with in response to the input ?
The 3dB bandwidth of the lowpass filter having impulse response is is:
What is the inverse fourier transform of u(w)?
The signal flow graph shown below has M number of forward path and N number of individual loops.
Q. What are the values of M and N ?
The transfer functions of the sytem is given by The impulse response of the system is:
Determine the value of K for a unity feedback system with to have a peak overshoot of 50%.
Assuming an operating temperature T = 300K and =26 mV. What is the change in semiconductor silicon diode forward voltage to produce a 10:1 change in dioide current while operating in the forward bias region (<25mA)?
An ntype semiconductor is illuminated by a steady flux of photons with energy greater than band gap energy. The change in conductivity obey which relation?
A singlephase fullbridge diode rectifier delivers a load current of 10 A, which is ripple free. The rms and average values of diode currents are respectively:
What is the value of inductance to be used in the inductor filter connected to a fullwave rectifier operation at 60 Hz to provide a DC output with 4% ripple for a 100 Ω load?
For the circuit shown below, the output voltage is given by
An amplifier using BJT has two identical stages each having a lower cutoff (3dB) frequency of 64Hz due to coupling capacitor. The emitter bypass capacitor also provides a lower cutoff (3dB) frequency due to emitter degeneration alone of 64Hz. The lower 3dB frequency of the overall amplifier is nearly?
What is the value of where
Here, s is the surface bounded by x = 0, x = 1, y = 0, y = 1, z = 0, z =1 and are unit vectors along x, yand z axes respectively.
For sea water with = 5 mho/m and = 80, what is the distance for which radio signal can be transmitted with 90% attenuation at 25 KHz?
A lossless transmission line with = 50 and = 1.5m connects a voltage source to a load If = 60V and = 50 then determine the current I supplied by the source at a frequency 100 MHz.
A pulse train with a frequency of 1MHz is counted using a mod1024 ripple counter built with J–K flipflops. For proper operation of the counter the maximum permissible propagation delay per flipflop stage is:
In a binary adder with two inputs X and Y, the correct set of logical expression for the output S (sum) and C (carry) are respectively:
Consider the following statements:
1. When a MUX is used to implement a logic function, the logic variables are applied to the MUX’s data inputs.
2. The circuit for a DEMUX is basically the same as that for a decoder.
Of these:
A liner system has the transfer function When it is subjected to an input white noise process with a constant spectral density A, the spectral density of the output will be:
A 3 x 8 decoder with two enable inputs is to be used to address 8 blocks of memory. What will be the size of each memory block when addressed from a sixteen bit bus with two MSBs used to enable the decoder?
Four signals are to be multiplexed and transmitted. and have a bandwidth of 4 KHz, and remaining two signals have bandwidth of 8KHz. Each sample requires 8 bits for encoding. What is the minimum transmission bit rate of the system?
A telephone channel has bandwidth B of 3KHz and SNR of 30dB. It is connected to a telephone machine having 32 different symbols. The symbol rate required for errorless transmission is nearly:
A modem is classified as low speed if data rate handled is:
The divergence of the vector field
A solution for the differential equation with initial condition =0 is:
For the transistor circuit shown below, the Qpoint values are given as I_{CQ }= 1 mA and V_{CEQ }= 6V
If V_{BE} (on) = 0.7 V, the values of the R_{B} and R_{c} will be respectively:
22 docs263 tests

22 docs263 tests
