A car travels first half distance between two places with a speed of 40 km/hr and the rest half distance with a speed of 60 km/hr. The average speed of the car is:
DMRC Electronics Engineering Paper-1 2016
For the following questions answer them individually
In how many different ways can the letters of the word ‘RIDDLED’ be arranged?
In the following question, a series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
AGMSY, CIOUA, EKQWC, _____, IOUAG, KQWCI.
A sphere and a cube have equal surface areas. The ratio of the volume of the sphere to that of the cube is:
There are 3 types of industries, paper, drug and toy industry. Six workers A, B, C, D, E and F work in these industries. Only two of them can work in one industry. No one can work in more than one industry. ‘A’ does not work in paper industry. ‘B’ and ‘E’ do not work in toy industry. ‘A’ and ‘B’ do not work in the same industry. ‘D’ does not work in drug industry. ‘A’ and ‘D’ do not work in toy industry. ‘E’ and ‘F’ are not in the same industry.
Which two workers work in the drug industry?
Which two work in the paper industry?
Paper, Drug and Toy are represented by which of the following respectively?
For the following questions answer them individually
Which of the following occurred first:
Which of the following represents the statement that some of the psychologists are philosophers. Some philosophers are writers. But no psychologist is a writer.
If $$(243)^{\frac{3}{5}} \times (729)^{\frac{-2}{3}} = 3^x$$ then the value of x is.
The velocity of a shell leaving the gun is 300 m/sec. Two shots are fired, first with elevation of barrel at $$30^\circ$$ and second with elevation $$60^\circ$$. The range achieved by the first will be:
Count the number of rectangles in the following figure:
The circumference of a semicircle of area 1925 sq. cm is equal to the breadth of a rectangle. If the length of the rectangle is equal to the perimeter of a square of side 48 cm. What is the perimeter of the rectangle?
A cloth merchant sold half of his cloth at 40% profit, half of remaining at 40% loss and rest was sold at cost price. In total transaction his gain or loss will be?
Khaira disease of paddy is due to soil deficiency of:
“The State shall endeavor to provide early childhood care and education of all children until they complete the age of six years”. This is a provision under:
If INDIA is codified as XYZXE and GLAD is codified PMEZ then LANDING is codified as:
Anil is the son of Bina. Chitra, who is Bina’s sister has a son Deepak and a daughter Ela. Fateh is the maternal uncle of Deepak.
How is Ela related to Fateh:
Find the wrong number in the following series.
10, 14, 28, 32, 64, 68, 132.
Which has become the first airport of the world to fully operate on solar power?
Which one of the following European countries borders Atlantic ocean?
From the following diagram find out correct answer for the given question.
Indians who are actors but not singers:
New Horizons became the first space probe to reach closest to Pluto recently. This is a mission by:
Select the suitable alternative to satisfy the relationship in the following question.
For the following questions answer them individually
A man and Babu can complete the work in 4 days. Aman alone starts working and leaves it after working for 3 days, completing only half of the work. In how many days, it can be completed if the remaining job is undertaken by Babu:
In three vessels, the ratio of water and milk is 6 : 7, 5 : 9 and 8 : 7 respectively. If the mixtures of the three vessels are mixed then what is the ratio of water and milk?
‘Indian Standard Meridian’ passes through the states of:
If interest payments are subtracted from gross fiscal deficit, the remainder will be:
Who was the famous poet who was deeply affected by Tagore’s Gitanjali?
A person mixes three varieties of wheat costing Rs. 20/- kg, Rs. 24/- kg and Rs. 30/- kg in the ratio of 1:5:2 and sells the mixture at a profit of 20%. Find the selling price of the mixture when it is sold at 33% profit:
Match the trophies associated with the respective games:
A triangle has two of its angles in the ratio of 1:2. If the measure of one of its angles is 30 degrees. What is the measure of the largest angle of the triangle in degree?
The alloy containing copper, tin and zinc in the ratio of 87 : 10 : 3 is called:
Which portion of the heart receives oxygenated blood:
A form of Hindustani music known as ‘Khayal’ evolved during the 13th & 14th centruries. The proponent of the style is known as:
The first Indian to receive Nobel Prize:
When we consider $$15^\circ$$ meridian on a world map or globe and count them in an eastward direction starting with Greenwich meridian ($$0^\circ$$), we find that the time of this meridian is:
Out of a total of 85 children playing Badminton or Table Tennis or both. Total number of girls in the group is 70% of the total number of boys in the group. The number of boys playing only Badminton is 50% of the number of boys and total number of boys playing Badminton is 60% of the total number of boys. Number of children only playing Table Tennis is 40% of the
total number of children and a total of 12 children play Badminton and Table Tennis both. What is the number of girls playing only Badminton?
How many squares can be formed by joining the center of the circles by horizontal and vertical lines:
A cistern has two pipes attached to it, one to supply and one to draw off. If both the pipes are opened together, the cistern is filled in 9 hours but if the waste pipe is opened one hour after the supply pipe, the cistern is filled in 7 hours. The time that will be taken by the supply pipe to fill the empty cistern is:
The first woman in NASA history to command space flight:
In an examination, pass marks are 36% of maximum marks. If an examine gets 17 marks and fails by 10 marks in this examination, what are the maximum marks?
If $$x = \frac{\sqrt{3} - \sqrt{2}}{\sqrt{3} + \sqrt{2}}$$ and $$y = \frac{\sqrt{3} + \sqrt{2}}{\sqrt{3} - \sqrt{2}}$$, then find the value of $$x^2 + xy + y^2$$.
Rhine valley in France is known for mineral deposits of:
An FM signal with modulation index mƒ is passed through a frequency tripler. The modulation index of the output signal will be
What is the correct sequence of the following step in the fabrication of a monolithic, bipolar junction transistor?
1. Emitter diffusion
2. Base diffusion
3. Buried layer formation
4. Epi-layer formation
Select the correct answer using the codes given below
Two sinusoidal signals having the same amplitude and frequency are applied to the X and Y inputs of a CRO. The observed Lissajous figure is straight line. The phase shift between the two signals would be
In a BJT circuit a pnp transistor is replaced by npn transistor. To analyse the new circuit
In 8085 microprocessor, the value of the most significant bit of the result following the execution of any arithmetic of Boolean instruction is stored in the
The analog signal m(t) is given below m(t) = 4 cos 100 pt + 8 sin 200 pt + cos 300 pt, the Nyquist sampling rate will be:
Find the noise factor for an antenna at $$27^\circ$$ C with equivalent noise temperature $$30^\circ$$ K:
Inverse Laplace transform of $$\frac{2s + s}{(s + 3)(S + 2)}$$ is:
The analog signal given below is sampled by 600 samples per second for m(t) = 3 sin 500 pt + 2 sin 700 pt then folding frequency is:
Which one most appropriate dynamic system?
In which of these is reverse recovery time nearly zero?
Frequency shift keying is used mostly in:
A parallel polarized wave is incident from air into paraffin having relative permittivity 3, the value of its Brewster angle is:
The phase angle corresponding to $$\frac{\lambda}{4}$$ in a standing - wave pattern is:
A 10 km long line has a characteristic impedance of 400 ohms. If line length is 100 km, the characteristic impedance is:
The output of an exclusive-NOR gate is 1. Which input combination is correct?
In figure v1 = 8 V and v2 = 4 V. Which diode will conduct?
Determine the output frequency for a frequency division circuit that contains 12 flip-flops with an input clock frequency of 20.48 MHz:
Initially the number decimal 8 is stored. If instruction RAL is executed twice, the final number stored will be:
The output of an AND gate with three inputs, A, B, and C, is HIGH when ________:
The gain of an FET amplifier can be changed by changing:
In the case of a 70-MHz IF carrier for a transponder bandwidth of 36 MHz, energy must lie between MHz:
In a full wave rectifier circuit using centre tapped transformer, the peak voltage across half of the secondary winding is 30 V. Then PIV is:
The Lissajous pattern observed on screen of CRO is a straight line inclined at $$45^\circ$$ to x axis. If X-plate input is 2 sin ωt, the Y-plate input is
The input impedance of op-amp circuit of figure is:
In a CRO which of the following is not a part of electron gun:
A 1 $$\mu F$$ capacitor is connected to 12 V battery. The energy stored in the capacitor is:
For a transmission line open circuit and short circuit impedances are 20 Ω and 5 Ω. Then characteristic impedance is:
Find i(t) if $$I(s) = \frac{s + 1}{(s + 4)(s + 3)}:$$
A capacitor used for power factor correction in single phase circuit decreases:
The negative sign in the expression $$e = - N (d \phi )/dt$$ is due to:
Form factor is the ratio of:
The number of valence electrons in pentavalent impurity is:
Material which lack permanent magnetic dipoles are known as:
The primary function of the bias circuit is to:
The transconductance of a JFET is computed at constant $$V_{DS}$$ by:
To find current in a resistance connected in a network, Thevenin's theorem is used $$V_{TH}$$ = 20 V and $$R_{TH}$$ = 5 Ω. The current through the resistance:
Superposition theorem is not applicable to network containing:
In a microwave test bench, why is the microwave signal amplitude modulated at 1 kHz?
The directive gain of an antenna:
An amplifier without feedback has a voltage gain of 50, input resistance 1 kΩ and output resistance of 2.5 kΩ. The input resistance of the current-shunt negative feedback amplifier using the above amplifier with a feedback factor of 0.2 would be:
In amplitude modulation AM, if modulation index is more than 100% then:
The use of non-uniform quantization leads to:
A PD controller is used to compensate a system. Compared to the uncompensated system, the compensated system has:
Which of the following is an inherent property of an optical signal and cannot be eliminated even in principle?
The disadvantage of CDMA system is:
The Ku frequency band used in satellite communication (for uplink and downlink) is:
Following transducer is an active transducer:
A NOR gate is equivalent to a bubbled AND gate. This statement is an outcome of:
The circuit shown in the figure has initial current $$i_L(0) = 1A$$ through the inductor and an initial voltage $$V_c(0) = 1 V$$ across the capacitor. For input v(t) = U(t) the Laplace transform of the current i(t) for $$t \geq 0$$ is:
Which of the following noise must be considered at high frequencies (microwave frequencies)?
In a broadcast communication receiver, most of the receiver selectivity is achieved in:
Slew rate is defined by:
The ideal operational amplifier does not have:
The following property of semiconductors cannot be determined from Hall effect:
The ABCD parameters of ideal n:1 transformer shown in the figure are $$\begin{bmatrix}n & o \\o & x \end{bmatrix}$$. The value of x will be:
In the circuit shown below, the volt meter will read:
This figure is a block diagram of ..........:
Theoretical bandwidth requirement for FM system is:
Waveguides are used mainly for microwave signals because:
Indicate which one of the following is NOT an advantage of FM over AM?
Which of the following statement is false? Modulation is used to:
In an n-type semiconductor, as the donor concentration $$N_D$$ increases, the Fermi level $$E_F$$:
The term "white noise" refers to the following:
Which of the following relation is true for two digital signals A and B?
The output waveform of a 555 Timer is:
The phase correcting circuit is:
The light emitted diodes consist of:
When the initial slope of input sine wave is greater than the slew rate of an OPAMP, the output:
A circuit is said to be free from phase distortion if its phase response shows:
In a full wave rectifier with input frequency of 50 Hz, the frequency of the output is:
In the common-emitter transistor circuit, if the current gain is 100 and the collector current is 10 mA, the base current is:
The basic Hartley oscillator uses:
The correct order of electromagnetic spectrum with decreasing frequency is:
In the given figure reflection coefficient at load is:
