Technical Test SSC JE: Electrical Engineering (EE)- 14


100 Questions MCQ Test Electrical Engineering SSC JE (Technical) | Technical Test SSC JE: Electrical Engineering (EE)- 14


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This mock test of Technical Test SSC JE: Electrical Engineering (EE)- 14 for Electrical Engineering (EE) helps you for every Electrical Engineering (EE) entrance exam. This contains 100 Multiple Choice Questions for Electrical Engineering (EE) Technical Test SSC JE: Electrical Engineering (EE)- 14 (mcq) to study with solutions a complete question bank. The solved questions answers in this Technical Test SSC JE: Electrical Engineering (EE)- 14 quiz give you a good mix of easy questions and tough questions. Electrical Engineering (EE) students definitely take this Technical Test SSC JE: Electrical Engineering (EE)- 14 exercise for a better result in the exam. You can find other Technical Test SSC JE: Electrical Engineering (EE)- 14 extra questions, long questions & short questions for Electrical Engineering (EE) on EduRev as well by searching above.
QUESTION: 1

Resolution of an instrument is

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QUESTION: 2

The volt ampere equation for a long shunt compound motor is given by

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QUESTION: 3

The current through a series RLC circuit under resonance condition will be

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QUESTION: 4

Zero-sequence currents can flow from a line to transformer bank if the windings are in

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QUESTION: 5

Resistivity of wire depends on

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QUESTION: 6

In a transistor largest dimension is that of –

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QUESTION: 7

Which one of the following describes correctly the effect of adding a zero to the system ?

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QUESTION: 8

For both lap and wave windings, there are as many commutator bars as the number of

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QUESTION: 9

A Lissajous pattern on an oscilloscope has 5 horizontal tangencies and 2 vertical tangencies.The frequency of the horizontal input is 1,000 Hz. What is the frequency of the vertical input ?

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QUESTION: 10

Negative-sequence reactance of a transformer is
 

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QUESTION: 11

Current flow through a bipolar transistor is by means of –

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QUESTION: 12

Five resistances are connected as shown in fig.6.

The equivalent resistance between the point A and B will be

 

 

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QUESTION: 13

The smallest change in a measured variable to which an instrument will respond is

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QUESTION: 14

114.Which of the following bridges can be used for inductance measurement ?
1. Maxwell bridge     2. Hay's bridge
3. Wein bridge          4. Wheatstone bridge
Select the correct answer using the code given below:
 

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QUESTION: 15

What is the approximate input impedance of a CRO?

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QUESTION: 16

Which of the following relation is incorrect ?

power factor =

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QUESTION: 17

Dead time of the instrument is

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QUESTION: 18

A FET can be used as a variable –

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QUESTION: 19

The power of a three-wire balanced system was measured by two wattmeter method. The reading of one of the wattmeter was found to be double that of the other. What is the pf of the system ?

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QUESTION: 20

The field coils of a dc generator are usually made of

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QUESTION: 21

Torque/weight ratio of an instrument indicates

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QUESTION: 22

 ......... is the best electronic device for fast switching.

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QUESTION: 23

123. The characteristic equation of a feedback control system is given by :s3 + 6s2 + 9s + 4 = 0 is What is the number of roots in the left -half of the s-plane ?

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QUESTION: 24

An alternating e.m.f. is applied to a pure inductance such that inductive reactance is 10 W.If the frequency of a.c. is doubled, the reactance will become

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QUESTION: 25

A series R-L-C circuit will have unity power factor if operated at a frequency of

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QUESTION: 26

The errors introduced by an instrument fall in which category ?

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QUESTION: 27

The current drawn by a 120 V dc motor with back emf of 110 V and armature resistance of 0.4W is

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QUESTION: 28

If the power factor is below 0.5 in two wattmeter method of power measurement

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QUESTION: 29

The positive-negative and zero sequence impedances of a solidly grounded system under steady-state condition always follow the relations

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QUESTION: 30

The resistance temperature coefficient is defined as

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QUESTION: 31

Which of the following results in a symmetrical fault ?

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QUESTION: 32

The advantage of transistor over vaccum tube is –

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QUESTION: 33

Accuracy is defined as the

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QUESTION: 34

The resistance of the field regulator of a dc shunt motor is of the order of

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QUESTION: 35

Which is the pilotless protection method for feeder line ?

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QUESTION: 36

A,B,C and D represent the transmission parameters of a two-port network. when is the network reciprocal ?

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QUESTION: 37

The condition for the validity under Ohm's law is

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QUESTION: 38

The most common type of fault is

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QUESTION: 39

The dielectric loss of a capacitor can be measured by which one of the following ?

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QUESTION: 40

In Metz-Price percentage differential protection of a D-Y transformer, the CT secondaries connection in the primary and secondary winding of the transformer would be in the form of

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QUESTION: 41

Core loss in a dc machine occurs in

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QUESTION: 42

The relay used feeder protection is

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QUESTION: 43

In a normally biased N-P-N transistor the main current crossing the collectro junction is –

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QUESTION: 44

If the power factor is below 0.5 in two wattmeter method of power measurement

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QUESTION: 45

Which one of the following bridges is used for measurement of dielectric loss and power factor of a capacitor ?

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QUESTION: 46

The load current in short-circuit calculation are neglected because
1. short-circuit current are much larger than load currents
2. short-circuit currents are greatly out of phase with load currents.
Which of these statement (s) is/are correct ?

Solution:
QUESTION: 47

Which bridge is used to determine frequency ?

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QUESTION: 48

The voltage coil of a single phase house energy meter

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QUESTION: 49

What should be the main characteristic(s) of the null detector in a bridge measurement ?
1. Accuracy.     2. Precision.
3. Sensitivity.    4. Resolution.
Select the correct answer using the code given below :

Solution:
QUESTION: 50

Reactance relay is normally used for protection against

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QUESTION: 51

The function of circuit breaker is

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QUESTION: 52

Holes are drilled on the opposite sides of the disc of an induction type energy meter to

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QUESTION: 53

In the potentiometer circuit shown in the given figure, the value of unknown voltage ‘E’ under balanced condition will be

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QUESTION: 54

The symmetrical components are used in the fault analysis because
 

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QUESTION: 55

Match List I with List II and select the correct answer using the codes given below the lists :

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QUESTION: 56

In a single-phase induction type energy meter, the lag adjustment is done to ensure that

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QUESTION: 57

A capacitor

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QUESTION: 58

Consider the following circuit: What is the value of current I in the 5W resistor in the circuit given in the figure ?

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QUESTION: 59

What is the nominal pH value of water that is to be maintained in a steam raising thermal power station ?

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QUESTION: 60

A cyclindrical rotor synchronous motor is switched on to the supply with its field windings shorted on them selves. It will

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QUESTION: 61

What is the characteristic of a good control system ?

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QUESTION: 62

A FET is –

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QUESTION: 63

The zero-sequence current of a generator for lineto- ground fault is j2.4 pu. Then the current through the neutral during the fault is

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QUESTION: 64

Laminations of core are generally made of—

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QUESTION: 65

An electric bulb rated 220 V is connected 220 v, 5 Hz source. Then, the bulb

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QUESTION: 66

The sensitivity of a Wheatstone bridge depends upon

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QUESTION: 67

A fault occurring at the terminals of an unloaded synchronous generator operating at its rate
voltage has resulted in the following values of currents and voltages.

Ia0 = j2.37 pu,    Ia1=j3.05 pu,    Ia2=j0.68 pu,
Va0 = Va1 = Va2 = 0.237 pu

Which one of the following faults has occurred ?

Solution:
QUESTION: 68

The torque-slip characteristics of a polyphase induction motor becomes almost linear at small values of slips, because in this range of slips,

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QUESTION: 69

In which zone the impedance Z is almost pure capacitance ?

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QUESTION: 70

The conductor carries more current on the surface in comparison to its core. This phenomenon is called the

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QUESTION: 71

In D.C. generator on no-load, the air gap flux distribution in space is—

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QUESTION: 72

In a two-Port network, the condition for reciprocity in terms of 'h' - parameters is

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QUESTION: 73

In a transmission system, the weight of copper used is proportional to

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QUESTION: 74

The speed of a series motor at no load is —

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QUESTION: 75

The coupling between two magnetically coupled coils is said to be ideal if the coefficient of coupling  is

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QUESTION: 76

A balanced 3-phase system consists of

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QUESTION: 77

At which condition of the transformer the equivalent circuit will be as shown in the figure ?

Solution:
QUESTION: 78

In the circuit given in the figure, the limiting error in the power dissipation ‘I2 R’ in the resistor R is

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QUESTION: 79

In dc machines, the air gap flux distribution in space at no load is

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QUESTION: 80

In the ciurcuit shown in the baove figure, the voltage across the 2 ohm resistor is

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QUESTION: 81

Linear system obeys

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QUESTION: 82

For defining the standard metre, wave length of which material is considered ?

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QUESTION: 83

In case of an unbalanced star-connected load supplied from an unbalanced 3-phase, 3-wire
system, load currents will consist of
 

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QUESTION: 84

The permissible flux density in cold rolled grain oriented steel is about

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QUESTION: 85

If an R-L circuit having impedance angle f is  awiteched on when figure under sinusoidal voltage wave is passing trough and angle q, there will be no switching transition if

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QUESTION: 86

What is the value of the damping ratio of a second order system when the value of the resonant peak is unity ?

Solution:
QUESTION: 87

Which of the following types of errors come under systematic errors ?
1. Irregular spring tension.
2. Improper readings of an instrument.
3. Loading effects.
4. Error due to the presence of electric field or magnetic field.

Solution:
QUESTION: 88

The dual of a parallel R-C circuit is a

Solution:
QUESTION: 89

In a control system , the use of negative feedback

Solution:
QUESTION: 90

In a power transformer, the breather is provided in order to

Solution:
QUESTION: 91

Zero-sequence fault current is absent when fault is

Solution:
QUESTION: 92

A resistance of 105 ohms is specified using significant figures as indicated below :
1. 105 ohms 2. 105.0 ohms
3. 0.000105 MW
Among these

Solution:
QUESTION: 93

A series motor drawing an armature current of Ia is operating under saturated magnetic conditions. The torque developed in the motor is proportional to

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QUESTION: 94

The volume of copper required for an ac transmission line is inversely proportional to

 

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QUESTION: 95

Torque/weight ratio of an instrument indicates

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QUESTION: 96

What is the initial slope of Bode magnitude plot of a type-2 system ?

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QUESTION: 97

A 3-phase synchronous generator is operating at constant load while the excitation is adjusted to give unity pf current. If the excitation is now increased, the pf will

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QUESTION: 98

Which of the following distribution systems is preferred for good efficiency and high economy ?

Solution:
QUESTION: 99

A combinational circuit

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QUESTION: 100

What will be the type of the system, if the steady state performance of control system yields a non zerofinite value of the velocity error constant ?

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