UPRVUNL Technician Grade 2 Exam (Electrician) - English

Assuming both the voltage sources are in phase, the value of R for which maximum power is transferred from circuit A to circuit B is

                 

For the intrinsic gallium-arsenide, the conductivity at room temperature 25°C is 10^-6 (ohm-m)^-1, the electron and hole nobilities are 0.85 m²/V-s and 0.04 m²/V-s respectively. What is the intrinsic carrier concentration at the room temperature?

The resistivity of intrinsic germanium at 30°C is 0.46 –m. What is the intrinsic carrier density at 30°C if the electron mobility is 0.38 m²/V-s and the hole mobility is 0.18 m²/V-s?

Heat conduction in a semiconductor takes place

Brewster angle is the angle when a wave is incident on the surface of a perfect dielectric at which there is no reflected wave and the incident wave is

An electrical breakdown of a p-n junction occurs if

The chief deterrent to the widespread application of superconducting materials is

Which one of the following properties is not observed in the carbon nanotubes ?

The evidence for the importance of electron-phonon interaction in super-conductors comes from

Which one of the following materials is used for cable insulation ?

For high speed reading and storing of information in a computer, the material used is

The temperature above which an anti-ferromagnetic material becomes paramagnetic is called

Which effect is the converse of Peltier effect ?

Magnetic materials which may be readily magnetized in either direction are

Consider the following statements regarding a ferromagnetic material:
1.Below the ferromagnetic Curie temperature, the ferromagnetic materials exhibit hysteresis effect.
2.The coercive force is the filed required to reduce the flux density to zero. 
Which of the above statements is/are correct?

The impact ionization phenomenon in semiconductor may be viewed as the reverse process of

Refractive index of a slice glass can be reduced by doping it with tiny amount of

If a diameter of a copper wire is increased by two times keeping its terminal voltage same, then the drift velocity will

In an induction type energy meter, the steady speed attained by the rotating disc is
1.Proportional to the deflecting torque.
2.Proportional to the resistance of the path of eddy currents.
3.Inversely proportional to the effective readings of disc from its axis.
4.Inversely proportional to the square of brake magnetic flux. 
Which of the above are correct?

If ‘KCLFTSB’ stands for ‘best of  luck’ and ‘SHSWDG’ stands for ‘good wishes’, which of the following indicates ‘ace the exam’?

Consider  the following statements associated with the basic electrostatic properties of ideal conductors:
1.The resultant field inside is zero.
2.The net charge density in the interior is zero.
3.Any net charges reside on the surface.
4.The surface is always equipotential.
5.The field just outside is zero. 
Which of the above statements are correct?

A semiconductor device made out of a material having very high temperature coefficient of resistance is

The electrical conductivity of a semiconductor increases with increase in temperature because

Which of the following are associated with soft superconductors?
1.Silsbee’s rule
2.Meissner effect
3.Faraday rotation
4.Curie-Weiss law

In a two-channel oscilloscope operating in x-y mode, two in-phase 50 Hz sinusoidal waveforms of equal amplitude are fed to the two channels. What will be the resultant pattern on the screen?

Materials, whose resistivity at very low temperature plunges from a finite value to zero and remains there upon further cooling, are known as

In a superconductor, is the temperature is decreased below its critical temperature, the value of critical magnetic field will

The imaginary part of dielectric constant determines

Direction: Each of the items consists of two statements, one labeled as the ‘Statement (I)’ and the other as ‘Statement (II)’. Examine these two statements carefully and select the answers to these items using the codes given below

In 8085A microprocessor, the operation performed by the instruction LHLD 2100 H is                                    

If the magnetic susceptibility of a specimen is small and positive, the specimen is

Manganese ferrite is a 1 : 1 mixture of

When a ferromagnetic substance is magnetized, small changes in dimensions occur. Such a phenomenon is known as

In ferromagnetic , anti-ferromagnetic and ferromagnetic materials, the atomic thermal motions counteract the coupling forces between the adjacent atomic dipole moments, thereby causing

The Hall effect voltage in intrinsic silicon

Most outstanding property of indium antimonide is

Which of the following semiconducting compounds is used in photoconductive devices?

Consider the following transducers:
1.LVDT
2.Piezoelectric
3.Thermocouple
4.Photovoltaic cell
Which of the above are active transducers?

Consider the following statements regarding magnetic materials:
1.A diamagnetic material has no permanent dipole
2.Paramagnetic material has anti-parallel orientation of equal moments with neighboring dipoles
3.Ferrimagnetic material has anti parallel orientation of unequal moments between neighboring dipoles
4.Anti-ferromagnetic material has negligible interaction between neighboring dipoles 
Which of these statements are correct?

Consider  the following statements regarding hysteresis loops of hard and soft magnetic materials:
1.Hysteresis loss of hard magnetic material will be less than that of soft material
2.Coercivity of hard materials will be greater than that of soft material
3.Retentivity of the two materials will always be equal
Which of these statements are correct?

Loss-tangent in plane waves in lossy dielectrics will be

Orientational polarization is

Behavior of conductors, semiconductors and insulators is explained on the basis of

In general, for a superconductor, which of the following statements is true?

Ferro-electric materials have a

In the magnetic core the electromotive forces (emf) induced in accordance with Faraday’s law of electromagnetic induction give rise to

Consider the following characterizing parameters of a material:
1.Magnetic permeability
2.Electron relaxation time
3.Electron effective mass
4.Energy band gap
In case of metals, increase in one of the above parameter decreases its conductivity, while increase in another increases the conductivity. There are respectively

Some magnetic materials may be classified on the basis of
1.Susceptibility
2.Saturation
3.Spin arrangement
4.Nature of hysteresis loop
5.Domain structure
6.Critical temperature above which it behaves as a paramagnetic material 
Which of these can be used to distinguish between ferri and ferromagnetic materials?

Magnetism is mainly due to only electron spin around their axis in case of

For Paramagnetic materials, the relative permeability is

Permalloy and Mumetal are examples of

When a ferromagnetic substance is magnetized, the phenomenon of ‘magnetostriction’ causes

The resistivity of ‘Ferrites’ is very much higher than that of ferromagnetic metals, because

When the temperature exceeds the transition temperature, a ferromagnetic material becomes similar to

Einstein relation is referred between

In a piezoelectric crystal oscillator, the oscillation or tuning frequency is linearly proportional to the

Which of the following are piezoelectric substances?
1.Barium Titanate
2.Lead Titanate
3.Lead Zirconate
4.Cadmium Suplhate 

Consider the following statements:
1.Fermi level in a p-type semiconductor lies close to the top of the valence bond.
2.The forbidden energy in Germanium at 0°K is exactly 0.75 eV.
3.When a p-n junction is reverse biased, then electrons and holes move away from the junction. 
Which of these statements are correct?

For a fully transposed transmission line

The unit of magnetic flux density is

Skin depth is the distance from the conductor surface where the field strength has fallen to

The electric field in the vicinity of two oppositely charged parallel conductors is

Two charges are placed at a distance apart. Now, if a glass slab is inserted between them, then the force between the charges will

The  transfer function of a second order real system with a perfectly flat magnitude response of unity has a pole at (2 – j3). List all the poles and zeros.                            

The presence of one of the following materials, in iron or steel for use as a magnetic material, tends to reduce the hysteresis loss

The depth of penetration of a wave in a lossy dielectric increases with increasing

Match List-I and List-II and select the correct answer using the code given below the lists: 
List-I                                                        List-II
A.Carbon (Diamond)                                 1. Conducting
B.Silicon                                                  2. Semiconducting
C.Tin (Grey)                                              3. Insulating
D.Lead

It is possible to destroy the superconductivity of a material by applying

Consider the following properties regarding insulation for cables: 
1. A low specific resistance
2. High temperature withstand
3. High dielectric strength
Which of the above properties of insulation are correct while using cables?

The open loop poles of a third order unity feedback system are at 0, -1, -2, let the frequency corresponding to the point, where the root locus of the system transits to unstable region be K. now suppose we introduce a zero in the open loop transfer function at -3, while keeping all the earlier open loop poles intact. Which one of the following is correct about the point, where the root locus of the modified system transits to unstable region?

Which of the following moving particles cannot be deflected by magnetic fields?

The Fermi level in an n-type semiconductor at zero degree kelvin lies

According to free electron theory, electrons in a metal are subjected to

Controlled addition of group III element to an elemental semiconductor results in the formation of

Phonons (Quanta of lattice vibration) obey

Did not you buy…………..when you went shopping?

Consider the following standard symbols for two-port parameters :
1.h₁₂ and h₂₁ are dimensionless.
2.h₁₁ ohms and B have dimensions of ohms.
3.BC is dimensionless.
4.C is dimensionless. 
Which of the above are correct ?

An iron-cored choke coil has an equivalent resistance of 5Ω. It draws 10 A when the applied voltage is 240V, 50Hz. Its inductance and power factor respectively are

A voltage of 100 V is applied to an impedance of Z = (3 + j4) Ω. What are the values of active power, reactive power and volt-amperes respectively ?

The voltage across an impedance Z is 100∠15° V and the current through Z is 20∠-45° A. The active and the reactive powers in Z respectively are

An a.c. source of 200 V r.m.s. supplies an active power of 1200 W and a reactive power of 1600 VAR to a load. The r.m.s. current and the power factor of the load respectively are

A shunt capacitor used for reactive power compensation is operated at 98% of its rated frequency and 95% of its rated voltage. The reactive power supplied by this capacitor (as compared to its rated capacity) is

Consider two nodes A and B connected by an impedance of j5 W. If the voltages at nodes A and B are 100∠30° V and 100∠0° V respectively, the real power that can be transferred from node A to B is

The Thevenin equivalent voltage and resistance across AB shown in the figure respectively are

The theorem which states that in any linear, non-linear, passive, active, time-variant, time-invariant network, summation of instantaneous power is zero will be called as

Transients are cause because
1.The load is suddenly connected to or disconnected from the supply
2.Of the sudden change in applied voltage form one finite value to the other
3.Of the change in stored energy in inductors and capacitors 
Which of the above statements are correct?

Which of the following can produce maximum induced voltage?

For cleat wiring and 250 volts supply, the cables will be placed _____ a part centre to centre for single corw cables. 

Which insulation is most widely used for covering wires/cables used in internal wiring ? 

If the Q-factor of a coil at resonant frequency of 1.5 MHz is 150 for a series resonant circuit, then the corresponding bandwidth is

The number of p-n junctions in a thyristor (SCR) is/are: 

In a two-wattmeter method of measuring power in a balanced 3-phase circuit, the ratio of the two wattmeter readings is 1 : 2. The circuit power

A balanced delta-connected load (16 + j12)Ω/phase is connected to a 3-phase 230 V balanced supply. The line current and the real power drawn respectively are

A balanced load of 5 + j4 is connected in delta. What is the impedance per phase of the equivalent star connection?

In an electric circuit, the number of independent meshes M is

A.d.c. voltage of 12 volts applied across an inductance in series with a switch

The power factor of a circuit in which voltage and current waves are non-sinusoidal is defined as

The low-frequency circuit impedance and the high-frequency circuit impedance for a series resonant circuit respectively are

Which of the following is an invalid state in an 8-4-2-1 binary codede decimal counter

The maximum space rate of change of the function which is in increasing direction of the function is known as

The field strength at a point of finite distance from an infinitely long straight uniform charged conductor is obtained by considering the radial (R) component and the longitudinal (L) component of the forces acting on a unit charge at the point, by the charges on the elemental length of the conductor. The resultant field strength is

The input signals to control systems are not known fully ahead of time, the characteristics of control system which suddenly strain a control system are :

For electromechanical energy conversion, a magnetic field is employed as the medium rather than electric field because

if the current density inside a straight conductor is uniform over its cross-section, the flux density variation inside the conductor at different distances from its center is

The law which states that the line integral of the magnetic field around a closed curve is equal to the free current through a surface, is

(∇ × H) = J is differential form of

What should be the nature of bandwidth for a good control system ?

A conductor of length 100cm moves at right angle to a uniform field flux density of 1.5 Wb/m² with a velocity of 50 m/s. The e.m.f. induced in the conductor will be

Maxwell equations
1.Are extension of the works of Gauss, Faraday and Ampere
2.Help studying the application of electrostatic fields only
3.Can be written in integral form and point form
4.Need not be modified depending upon the media involved in the problem 
Which of the above statements are correct?

Fermion particles obey

The complex permeability and resulting wave losses are due to

A 10 GHz plane wave travelling in free space has amplitude 15 V/m. The propagation coefficient β is

In time domain specification, decay ratio is the ratio of the

A lossless transmission line has a characteristic impedance of Z₀ and capacitance per unit length of C. The velocity of propagation of the travelling wave on the line is

A pair of high-frequency parallel transmission lines has distributed capacitance and inductance of 0.8 F and 9.8 mH respectively. What is the characteristic impedance of the line?

The propagation constant of a transmission line is 0.15 × 10^-3 + j1.5 × 10^-3The wavelength of the travelling wave is

The skin effect in a transmission line is affected by

There are no transient in pure resistance circuit because they

As shown in the figure, 1 Ω resistance is connected across a source that has a load line v + i = 100. The current through the resistance is

An RLC resonant circuit has a resonance frequency of 1-5 MHz and bandwidth of 10 kHz. If C = 150 PF, then effective resistance of the circuit will be

Consider the following two types of non-identical sources:         
1.Voltage sources e₁(t) and  e₂(t)
2.Current source i₁(t) and i₂(t)
Regarding the mode of their connection in a circuit,

In a series resonant circuit, maximum voltage across L occurs at

For the high voltage conductors at high pressures, if the voltage is positive then the corona appears as a

Consider the following properties attributed to state model of a system:
1.State model is unique
2.Transfer function for the system is unique
3.State model can be derived from transfer function of the system 
Which of the above statements are correct?

A magnetic ring has a mean circumference of 20cm and a cross-section of 20cm² and has 800 numbers of turns of wire. When the exciting current is 5 A, the flux is 2 mWb. The relative permeability of iron is nearly

The voltage and current waveforms for an element are shown in the figures:

The circuit element and its value are

For a series R-C circuit, the power factor corresponding to maximum power is

The power consumed by a coil is 300W when connected to a 30V dc source and 108W when connected to a 30V ac source. The reactance of the coil is

When a source is delivering maximum power to a load, the efficiency of the circuit is always

Consider the following statements:Any element connected in
1.Series with an ideal current source is redundant.
2.Parallel with an ideal current source is redundant.
3.Series with an ideal voltage source is redundant.
4.Parallel with an ideal voltage source is redundant. 
Which of the above statements are correct?

A battery charger can drive a current of 5 A into a 1Ω resistance connected at its output terminals. If it is able to charge an ideal 2 V battery at 7 A rate, then Thevenin’s equivalent will be

The output power of a filter is 100 mW, when the signal frequency is 5 kHz. When the frequency is increased to 25 kHz, the output power falls to 50 mW. What is the dB change in power?

In any network the current will be seen to be consisting of a forced current and a natural current. A forced current is

A coil of resistance 10 Ω and inductance 0.8 H is connected to a 200 V dc supply. The initial rate of change of current is

Three equal impedances are first connected in delta across a 3-phase balanced supply. If the same impedances are connected in star across the same supply then,

The electric field lines and equipotential lines

According to Gauss’s law, the surface integral of the normal component of electric flux density D over a closed surface containing charge Q is

Consider the following statements:A current I flows through a circular coil of one turn of radius R in the counter-clock wise direction.
1.The magnetic field at the center is inversely proportional to R
2.The magnetic moment of the coil is directly proportional to R²
3.The magnetic field at its center is directly proportional to R² 
Which of the above statements are correct?

The depth of penetration of a wave in a lossy dielectric medium increases with

In practice, Earth is chosen as a place of zero electric potential because it

The capacitance of a concentric spherical capacitor of shell radii x and y (x > y) is

The frequency of the power wave associated with an electromagnetic wave having an E field as 
 is given by

When the wave travels in a conducting medium, the rate of attenuation is decided by

Uniform plane wave is

The impedance Z offered by transmission line for a travelling wave which damps out the low frequency oscillation rapidly is called

In a coaxial transmission line, the useful power flows through

For a line to have a purely resistive characteristic impedance

A second order system is described by

The damping ratio of the system is

When deriving the transfer function of a linear element

For the circuit shown above the value of r connected between C and D is such that the equivalent resistance of the circuit by looking into circuit through terminals A and B is r only. Then the value of r is

Yojna a weekly journal

Kurukshetra a journal on rural development is published by

Devaluation of a currency means

In India rural incomes are generally lower than the urban incomes, which of the following reasons account for this
            1. a large number of farmers are illiterate and know little about scientific agriculture
            2. prices of primary products are lower than those of manufactured products
            3. Investments in agriculture has been low when compared to investment in industry

Which of the following programmes aims at the promotion of savings among rural women

What is Net National Product

National income is the 

Chelliah Committee of 1992 deals with the overhauling of our

During which Five Year Plan was the annual growth rate of National Income the lowest

Which of the following taxes is a progressive tax

In ruby laser, the stimulated emission is due to transition from

A direct current I flows along the length of an infinitely long straight thin walled pipe, then the magnetic field is

10^-6 M NaOH is diluted 100 times. The pH of the diluted base is

In the electrolysis of acidulated water, it is desired to obtain 1.12 cc of hydrogen per second under STP condition. The current to be passed is

The respiratory quotient during cellular respiration would depend on

Which country's Supreme Leader, Ali Khamenei, was assassinated in a joint US-Israel strike in late February 2026?

What was the primary goal stated for the 2026 Israeli–United States strikes on Iran?

Which Indian state won its maiden Ranji Trophy title recently (reported in early March 2026)?

What funding amount did Germany announce for a new climate resilience initiative with India in February 2026?

Which Indian state launched its first Dark Sky Park in Kolli Hills in February 2026?

How many such pairs of letters are there in the word ‘CLEANLINESS’ each of the which has as many letters between them in the word as they have in the English alphabet, in the same sequence?

Team A has scored more goals than Team B
Team C has scored fewer goals than Team B
Team A has scored fewer goals than Team C .
If the first two statements are true, the third statement is

If it is possible to make only one meaningful word with the second, the third, the sixth and the eight letters of the word FRAGMENT using each only once, which of the following will be the third letter of that word ? If no such word can be formed, give ‘X’ as the answer and if more than one such word can be formed, give ‘Y’ as the answer.

How many such letters are there in the word ORIENTAL each of which is as far away from the beginning of the word as when they are arranged alphabetically?

How many such pairs of letters in the word CREDIT each of which has as many letters between them in the word as in the English alphabet?

How many meaningful words can be made from the letters ‘LMEA’ using each letter only once in each word?

If it is possible to make only one meaningful word with the first, the second, the seventh and the eighth letters of the word TEMPORAL, which of the following will be the first letter of that word? If more than one such word can be made, give ‘Y’ as the answer and if no such word can be made, give ‘X’ as the answer.

If the letters of the word HANDOVER are arranged alphabetically from left to right how many letters will remain at the same position?

How many such pairs of letters are there in the word EXCURSION, each of which has as many letters between them in the word as they have in the English alphabet?

If it is possible to make only one meaningful word with the first, the second, the third, the sixth and the eighth letters of the word DEVIATION first letter of that word is your answer? If more than one such word can be made formed your answer is ‘A’  and if no such word can be formed your answer is ‘B’.

If each alternate letter beginning with the first in the word WORKING is replaced by the next letter in the English alphabet and each of the remaining letters is replaced by the previous letter in the English alphabet, which of the following will be the fourth from the right and after the replacement ?

How many pairs of letters are there in the word ‘SHIFTED’ each of which has as many letters between its two letters as there are between in the English alphabet?

Statement: Is common currency a necessary ingredient for Europe’s growth ?
Arguments :
I. Yes, A common currency will enable entire Europe to market itself as one .
II. No, Similar experiments by Latin America countries have not affected their economies .

If it is possible to make only one meaningful word with the first, the fifth, the sixth, the tenth and the eleventh letters of the word EXCEPTIONAL using each letter only once, first letter of that word is your answer. If no such word can be made formed your answer is ‘X’  and if more than one such word can be formed your answer is ‘Y’.

How many meaningful English words can be formed with the letters RAE using each letter only once in each word?

How many such pairs of letters are there in the word WONDERS, each of which has as many letters between its two letters as there are between them in the English alphabet?

If it is possible to make only one meaningful English word from the second, the fifth, the seventh and the eighth letters of the word PHYSICAL, using each letter only once, second letter of that word is your answer. If more than one such word can  be formed your answer is M. if no such word can be formed your answer is N.

How many such pairs of letters are there in the word JUSTIFY, each of which have as many letters between them in the word as they have between them in the English alphabet?

If the alphabets are assigned values as A=3, D=6, G=8, I=2, L=4 and T=5 then what is the sum of values of all the alphabets in the word DIGITAL?

How many such pairs of letters are there in the word EDUCATION, each of which has as many letters between them in the word as they have in the English alphabet?

'ऋ' अर् में बदलता है -

निम्न में कौनसा नासिक्य व्यंजन है - 

निम्न में से उत्क्षिप्त व्यंजन है -

निम्न में से अल्प प्राण नहीं है -

तालव्य व्यंजन है-

'अ' स्वर का उच्चारण स्थान क्या है -

निम्लखित मे कंट- तालव्य स्वर कौनसे है ?

जो धातु या शब्द के अंत में जोड़ा जाता है उसे कहते है ?

प्रख्यात में प्रयुक्त उपसर्ग है -

'साखी' शब्द का तत्सम रूप है -