SSC JE Electrical Engineering 2013
In the following questions, seleet the related figure/letters/number from the given alternatives.
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23 : 8 :: 32 : ?
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MLKJ : NOPQ :: IHGF : ?
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ACEG : ZXVT :: BDFH : ?
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BADC : XWZY :: FEHG : ?
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$$\frac{5}{9} : \frac{7}{13} :: \frac{10}{19} : ?$$
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3 : 9 :: 6 : ?
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In the following questions, select the one which different from the other three responses.
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For the following questions answer them individually
Arrange the ee words Soeen order :
1. Grapes
2. Vineyard
3. Whisky
4. Brewing
5. Distillation
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Which will appear fourth in the dictionary ?
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Number of letters skipped in between adjacent letters in the series increases by one. Which of the following series observes the rule given below?
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In the following words, the group of letters should not contain more than three vowels. Which of the following words does not conform to the rule?
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In the following questions, choose the correct alternative from the given responses that will complete the series.
?, PSV, EHK, TWZ, ILO
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78, 86, ?, 88, 82, 90
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3 7 13 ? 31 43 57
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EJOT, INSX, AFKP, ?
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For the following questions answer them individually
My father haa two brothers. The youngest has two sons and one daughter. The elder one has one son and two daughters and the remaining one has three sons. If my father has four nephews, how many cousins (brothers) have I got ?
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Find the wrong number in the given series.
3, 7, 15, 31, 64, 127
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A car covers the first half. of the distance between two places at 40 km/hr and the second half of the distance at 60 km/hr. So what is the average speed of the car?
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In a certain code language, TOGETHER is written as EGTORETH. How is CONGRATULATE written in that language ?
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In certain code language, REQUEST is written as S2H52TU. How is RETEST written in that language?
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Some equations are solved on the basis of a certain system. On the same basis, find out the correct answer for the unsolved equation. If $$4^2 = 7$$, $$5^2 = 7$$, $$6^2 = 9$$, then $$7^2 = ?$$
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Find out the number which belongs to the given group of numbers from the alternatives:
246, 579, 135, 35, 68
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If P stands for $$\div$$, Q standsfor $$\times$$, R stands for $$+$$, then
18 Q 12 P 4 R 5 = ?
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From the given alternatives, select the word which cannot be formed using the letters of the given word.
ACCOMPANIED
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In the following questions, find the missing number from the given responses.
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For the following questions answer them individually
Ram travelled 6 ft towards West, he turned left and walked 8 ft, then turned left and walked 4 ft, then turned left and walked 8 ft again. How far is he now from the starting point ?
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How many black-faced cubes are there in the given structure ?
The door of Priya’s house faces East. From the back side of the house, she walks straight 50 meters, then turns to the right and walks 50 meters again. Finally, she turns towards the left and stops afler walking 25 meters. Now Priya is facing which direction ?
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In the following diagram, rectangle represents males, circle represents urban and square represents educated. Which region represents educated urban males?
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In the following Venn diagram, identify the letter which denotes Film Actors who are Singers but not Directors.
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Identify the answer figure from which the pieces given in the question figure have been cut.
In the following questions, one or two statements are given, followed by two conclusions I and II. You have to consider the statements to be true even if they seem to be at variance from commonly known facts, You have to decide which of the given conclusions, if any, follows from the given statements.
Statement :
A social movement is an interaction of people with a common motivational base in frustration.
Conclusions :
I. In a social movement, people who are satisfied interact with frustrated people.
II. Frustrated people interact with each other in a social movement.
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Statements:
All scientists are hard-working. No hard-working man is poor.
Conclusions:
I. No scientist is poor
II. No poor man is a scientist.
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For the following questions answer them individually
Which of the answer figures is exactly the mirror image of the given figure, when the mirror is held on the ling AB?
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A word is represented by only one set of numbers as given in any one of the alternatives. The sets of numbers given in the alternatives are represented by two classes of alphabets as in the two matrices given below. The columns and rows of Matrix I are numbered from 0 to 4 and that of Matrix II are numbered from 5 to 9. A letter from these matrices can be represented first by its row and next by its column, eg. ‘A’ can be represented by 13, 76, etc., and ‘G’ can be represented by 22, 65, etc. Similarly, you have ta identify the set for the word ‘PUBLIC’.
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Components of which of the answer figures will exactly make up the question figure given below.
Select the answer figure in which the question figure is hidden/embedded
A piece of paper is folded and punched as shown below in the question figure. From the given answer figures, indicate how it will appear when opened ?
Who was the first economist to have coined the terms “Micro Economics” and "Macro Economics" ?
In a free enterprise economy, the decision on what shall be produced is made by
The main reabon for the high growth of money supply im India since 1970 has been the rise in
Who was the firat Muslim to be elected as President of the Indian National Congress ?
Which of the following was not known to the Rigvedic period ?
The characteristic feature of democratic socalism is
If a group of rich people use power for their selfish goals, it is called as
Who said that "Man is born free and everywhere he is in chains"
A civil servant in India may exercise poliliberty by
The term 'Law' used in the pharse 'Rule of Law' refers to
The total physical product per unit of a variable input is known as
The discount on price when a large quantity is purchased is known as
What type of fruit is pineapple?
Strobilus is a structure associated with
Signet-ring is seen in the life cycle of
The number of occipital condyles in man is
Migratory larvae of Ascaris produce symptoms of pneumonia. This is known as
Which of the following animals is an osmoconformer ?
Which one of the following is the source of Solar energy ?
Who, for the first time, successfully determined the charge of an electron ?
The first Muslim king who invaded South India was
The Great Bath was located in
The Mughal judicial system was based on
Hurricanes are generally
Orinoco oil belt is in
The highest peak in Africa is
A layer of the Earth made up of mixed metals and silicates is called
The exhaustion of soil fertility is the result of
Injection of weakened microbes to confer resistance to a disease is known as
Who, among the following, is the author of 'Das-Kapital'
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When and where will the next Olympics be held ?
A Persian form of singing a poem is called
Green-house effect causes
The advantages of rain-water harvesting is that it
The ‘solder’ used for connecting electronic circuits consists of
What type of molecular motion is responsible for heat conduction ?
Pick the odd one out.
MS-Office ia an example of ............
In India, the day $$5^{th}$$ September is celebrated as Teacher's Day to honour the birthday of
Which among the following polluting agents is responsible for creating a bole in the ozone layer ?
Fly ash is
Addition of chlorine to raw water before treatment is known as
Which of the following is not a water treatment technique ?
Which one of the following is m major indoor air pollutantin India ?
Multi Drug Therapy is for the infection of
Volvo, the car manufacturing company, introduced
The Dark Continent is
The major constitution of air is
The souring of milk to curd is an example of
Which one of the following compounds is formed when formaldehyde is treated with Grignard reagent ?
The voltage wave $$ v = V_m \sin (\omega t - 15^\circ)$$ volts is mapplied across an AC circuit. If the current leads the voltage by $$ 10^\circ$$ and the maximum value of currents is $$I_m$$ , then the equation of current is
The average value of current $$ (I_{av})$$ of a sinusoidal wave of peak value $$ (I_{am})$$ is
The emf induced in a coil is given by $$ e = -N \frac{2\phi}{dt}$$ where e is the emf imduced, N is the number of turns and $$ d \phi $$ is the instantaneous flux linkage withthe coil in time dt
The mutual inductance between two coils having self inductances 3 henry and 12 henry and coupling coefficeient 0.85 is
Resistance temperature coefficient of copper at $$20^\circ C $$ is
The load characteristic of DC shunt generator is determined by
How many watt-seconds are supplied by a motor developing 2 hp (British) for 5 hours
A 4-pole generator is running at 1200 rpm. The frequency and time period of the emf generated in its coils respectively
The single phase Induction Motor (IM) which does not have centrifugal switch is
When a multiplier is added to an existing voltmeter for extending its range, its electromagnetic damping
Phasor diagram of load voltage (V), current in pressure coil $$(I_p)$$ and current in current coil $$(I_C)$$ is shown in the figure when an electrodynamic watt meter is used to measure power. The reading of the watt meter will be proportional to
Two parallel conductors carrying current in opposite directions will exert on each other
The unit of reluctance of magnetic circuit is
In indicating instruments the springs are mainly used to
A balanced 3-phase, 3-wire supply feeds balanced star connected resistors. If one of the resistors is disconnected, then the percentage reduction in load will be
The total flux at the end of a long permanent bar magnet is $$ 100 \times 10^{-6} Wb$$. The end of this magnet is withdrawn through a 1000 turn coil in 1/20 seconds. The induced e.m.f. in the coil is
In reference to the figure, the voltage waveform v(t) is measured by a PMMC, a PMMC combined with bridge rectifier and a moving iron (MI) instrument. Two lists are prepared thereafter
The correct option relation the instruments and their reading is
The switching transistor as shown, carries in the collector side an rms current of 8 mA. If the frequency of rectangular pulse train $$ V_i $$ is 50 Hz, then on-time of the transistor is
A ammeter of resistance $$ R_m $$ is placed an arrangement as shown in the figure. Material of $$ R_m, R_{sh} $$ is copper whereas that of $$ R_s, R_x $$ is manganin. The condition for which the meter performance is compensated against temperature, is
If a 110 V, 50 Hz is applied across a PMMC voltmeter of full-scale range 0-220 V and internal resistance of $$ 10Ω $$, reading of the voltmeter will
To maximize the driving torque in an induction type instrument, flux produced by shunt coil and series coil should be
To minimize the errors due to lead and contact resistances, low resistances used in electrical measurement work are provide with
Examine the two statements ‘A’ and ‘R’ and select your answer
Statement A : Switching of a lamp in house produce noise in a radio.
Statement R : Switching operation produces are across separating contacts
The small pockets of air in the high voltage cable provide________relative permittivity _________ electric field and at these sites breakdown is likely to be initiated
The capacitance measured between any two cores of a 3-core cable with the sheated earthed is $$3 \mu F$$. The capacitance per phase will be
In an insulated cable having core diameter d and overall diameter D, the ratio of maximum to minimum dielectric stress is given by
Compared to the breaking capacity of a circuit breaker, its making capacity should be
In electronic circuits, for blocking the DC component of a voltage signal, a/an _________ is connected is series with the voltage source
For n-type semiconductor, the doping material is
A attenuator probe as shown, is connected to an amplifier of input capacitance 0.1 $$\mu F$$. Value of C that must be connected across 100 k to make the overall gain independent of frequency, is
Silicon content ini iron lamination is kept within 5% as it
A wattmeter is marked 15A/30A, 300V/600V and its scale is marked up to 4500 watts. When the meter is connected for 30A, 600A, the point indicated 2000 watts. The actual power in the circuit is
Resistance switching is normally employed in
If the angular frequency of an alternating voltage is $$\omega$$, then the angular frequency of instantaneous real power absorbed in an ac circuit is
If the transistor having $$V_{CE} = 5 V, V_{BE} = 0.7$$ has $$\beta = 45$$, value of R is
In a balanced 3-phase circuit, the line current is 12 A. When the power is measured by two wattmeter method, one meter reads 11kW while the other reads zero. Power factor of the load is
In case of frosted GLS lamps, frosting is done by
If the supply polarity to the armature terminals of a separately excited DC motor is reversed, the motor will run under
For welding purpose, the secondary of transformer used should be capable of carrying
Which of the following is correct ?
In a motor starter, the electromechanical contactor provides inherent protection against
In the circuit, V is the input voltage applied across the capacitor of 2 F. Current through the capacitor is
In a semiconductor, the resistivity
A geyser is operated from 230V, 50 c/s mains. The frequency of instantaneous power consumed by the geyser is
Ampere-second is the unit of
Two lossy capacitors with equal capacitance values and power factors of 0.01 and 0.02 are in parallel, and the combination is supplied from a sinusoidal voltage source. The power factor of the combination is
A voltmeter when connected across aDC supply, reads 124 V. When a series combination of the voltmeter and an unknown resistance X is connected across the supply , the meter reads 4V. If the resistance of the voltmeter is 50kΩ , the value of X is
The purpose of providing a choke in the tube-light is
In a 3-phase 400 V, 4-wire system, two incandescent lamps, one having 230 V, 100 W specification and the other 230 V, 200 W are connected between R phase-neutral and Y phase-neutral respectively. If the neutral wire breaks
A solenoid of inductance 250 mH and resistance 10 Ω is connected to a battery. The time taken for the magnetic energy to reach $$\frac{1}{4}th$$ of its maximum
value is
The peak value of the output voltage of a half wave rectifier is 100 V. The r.m.s value of the half-wave rectifier output voltage will be
The given circuit represents a
The input resistance of a FET is of the order of
In a series R-L circuit supplied from an sinusoidal voltage source, voltage across R and L are 3 V and 4 V respectively. The supply voltage is then
If the insulation resistance of 2m long sample of a cable is 10MΩ , then a 8m long sample of the same will have an insulation resistance of
An inductor is supplied from a sinusoidal voltage source. The magnetic field energy in the inductor changes from peak value to minimum value 10 msec. The supply frequency is
Two 2000 Ω, 2 watt resistors are connected in parallel. Their combined resistance value and wattage rating are
We have three resistances each of value 1 Ω, 2 Ω and 3 Ω. If all the three resistances are to be connected in a circuit, how many different values of equivalent resistance are possible?
One B.O.T. unit is
An electric heater draws 1000 watts from a 250 V source. The power drawn from a 200 V source is
Three 3 $$\mu F$$ capacitors are in series. A 6 $$\mu F$$ capacitor is in parallel with this series arrangement. The equivalent capacitance of this combination is
A DC series motor has an armature resistance of 0.06 Ω and series field resistance of 0.08 Ω. The motor is connected to a 400 V supply. Thus line current is 20 A when the speed of the machine is 1100 rpm. When the line current is 50 A and the excitation is increased by 30%, speed of the machine in rpm is
The voltage across R, L and C are 3V, 14 V, and 10 V respectively as in the figure. If the voltage source is sinusoidal, then the input voltage (rms) is
In 1-phase series RL circuit fed by voltage source, the resistance and reactance values are 4 ohm each. In this circuit.
Super position theorem requires as many circuits to be solved as there are
In squirrel cage induction motor, the rotor conductors are
A 3-phase synchronous motor is started by utilizing the torque developed in
If the frequency of input voltage of a transformer is increased keeping the magnitude of the voltage unchanged, then
Two 1-phase AC motors A and B operate from a 1000 V supply. A consumes 2 kW at a power factor of 0.8 (lagging) and B comsumes 1 kW at a power factor of 0.5 (lagging). The total current drawn from the supply is approximately
The high voltage and low voltage winding resistances of a distribution transformer of 100KVA, $$\frac{1100}{220}$$ V, 50 Hz are 0.1 Ω and 0.004 Ω respectively. The equivalent resistances referred to high voltage side and low voltage side are respectively
A tank circuit consists of
The instantaneous power of a 1-phase series circuit supplying R-L load from a sinusoidal voltage source has in each cycle.
In a series R-L-C circuit, the “Q-factor” is given by
In an ac circuit, V = (200 + j 40) V and I = (30 - j 10) A. The active and reactive power of the circuit are respectively
Application of Norton’s theorem in a circuit results in
The voltage (v) vs current (i) curve of the circuit is shown below :
Internal resistance of the source e is
Value of the load impedance $$\overline{Z}_L$$ for which the load consumes maximum power is
The speed - torque characteristics of a DC series motor operating from a constant voltage supply is
Match List I (Machine) with List II (Graph) and select the appropriate response
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
The average value of the voltage wave $$v = 110 + 175 \sin(314t - 25^\circ)$$ volts is
A current from an AC source divides into two branches A and B in parallel. Branch A is an inductor with 30 $$\mu H$$ inductance and 1 Ω resistance. Branch B is another inductor with inductance L and 1.5 Ω resistance. For the ratio of currents in the branches to be independent of supply frequency, value of L should be
A universal motor is one which
If the centrifugal switch of a single phase resistance split induction motor does not open after starting of motor, the motor
Alternators are usually designated to generate which type of AC voltage ?
Three inductors each of 60 mH are connected in delta. The value of inductance of each arm of the equivalent star connection is
The magnetic field energy in an inductor changes from maximum value to minimum value in 5 msec when connected to an AC source. The frequency of the source in Hz is
A voltage source having an open-circuit voltage of 150 V and internal resistance of 75Ω is equivalent to a current source of
A 300 kW alternator is driven by a prime mover of speed regulation 4% while the prime mover of another 200 kW alternator has a speed regulation of 3%. When operating in parallel; the total load they can take without any of them being overloaded is
The commutator in DC machine acts as
The purpose of using dummy coil inDC machine is to
An inductor with a ferromagnetic core is supplied from a sinusoidal voltage source with frequency 'f'. The current drawn by the inductor will be
For a 6-pole DC machine with wave wound armature, the number of brushes required is
Function of interpoles in a DC machine is to
The commutator segments of DC machine are made of
Which one of the following is a speed control method of three phase squirrel cage induction motor?
In the circuit as shown, voltage measured between A, B, is found to be 70 V. Value of M is
Two coupled coills, connected in a series have and equivalent inductance of 16 mH or 8 mH depending on the connection. The mutual inductance between the coil is
Tesla is the unit of
Which one of the following is a valid value of coefficien of coupling between two inductors?
