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Technical Test SSC JE: Electrical Engineering (EE)- 12 - Electrical Engineering (EE) MCQ


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100 Questions MCQ Test SSC JE Electrical Mock Test Series 2025 - Technical Test SSC JE: Electrical Engineering (EE)- 12

Technical Test SSC JE: Electrical Engineering (EE)- 12 for Electrical Engineering (EE) 2024 is part of SSC JE Electrical Mock Test Series 2025 preparation. The Technical Test SSC JE: Electrical Engineering (EE)- 12 questions and answers have been prepared according to the Electrical Engineering (EE) exam syllabus.The Technical Test SSC JE: Electrical Engineering (EE)- 12 MCQs are made for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Technical Test SSC JE: Electrical Engineering (EE)- 12 below.
Solutions of Technical Test SSC JE: Electrical Engineering (EE)- 12 questions in English are available as part of our SSC JE Electrical Mock Test Series 2025 for Electrical Engineering (EE) & Technical Test SSC JE: Electrical Engineering (EE)- 12 solutions in Hindi for SSC JE Electrical Mock Test Series 2025 course. Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free. Attempt Technical Test SSC JE: Electrical Engineering (EE)- 12 | 100 questions in 100 minutes | Mock test for Electrical Engineering (EE) preparation | Free important questions MCQ to study SSC JE Electrical Mock Test Series 2025 for Electrical Engineering (EE) Exam | Download free PDF with solutions
Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 1

The ratio of voltage and current in a closed circuit remains

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 2

A permanent magnet retains its magnetism

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Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 3

Poles of magnet

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 4

Polyphase motors are –

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 5

Moving coil instruments are –

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 6

The dynamometer type wattmeter is used on –

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 7

Megger can be used of testing –

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 8

The most essential instrument required by a T.V. technician is –

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 9

The e.m.f. generated in a d.c. Generator is –

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 10

Rating of transformer is given in –

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 11

In a larger size of alternator, flux is kept –

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 12

A synchronous motor can be started by

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 13

The efficiency of lamp is measured in –

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 14

In metallic arc welding, the supply voltage may be –

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 15

A gas turbine works on

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 16

Photo voltaic solar energy conversion system makes use of

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 17

Solar cells are made of

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 18

A generating station which has a high investment cost and low operating cost is usually operated as a

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 19

Major share of power generated in India is through

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 20

Out of the following plants categories
(i) Nuclear (ii) Run-off-river
(iii) Pump Storage (iv) Diesel
The base load power plants are
 

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 21

Which of the following motors is used in ceiling fan?

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 22

In the optimum generator scheduling different power plants, the minimum fuel cost is obtained when

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 23

The area the load curve represents

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 24

The power system experiences peak demand from

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 25

Demand factor is defined as the ratio of

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 26

A power plant has a maximum demand of 15 MW. The load factor is 50% and the plant factoris 40%. The operating reserve is

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 27

The economics of power plant is greatly influenced by :
1. Load factor 2. utilization factor
3. unit capacity 4. type of load
 

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 28

Domestic consumers are usually charged

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 29

Distributors designed from the point of view of

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 30

What is the main reason for using the high voltage for the long distance power transmission?

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 31

The material used for the manufacture of ground wire is

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 32

Wavy structure of pin insulator increases its

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 33

Corona loss increases with

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 34

Bundled conductors are used to

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 35

In a short transmission line, voltage regulation is zero what the power factor angle of the load at
the receiving end side is equal to

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 36

Ferranti effect happens in transmission line when the line is

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 37

A synchronous compensator absorbs inductive reactive power. It is

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 38

Capacitors are used in power system to

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 39

The dielectric strength of impregnated paper is about

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 40

The distribution system in India are mostly

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 41

As per electricity regulations in India the maximum permissible voltage change at consumer premises should be

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 42

The making capacity of a circuit breaker is

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 43

Which of the following sequences of operations represents the rated operating duty cycle of a circuit breaker ?

(O- open; C-close, t = 3s; T = 3 minutes)

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 44

Purpose of backup protection is

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 45

For ground fault use prefer

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 46

Impulse rations of insulators and lightning arresters  be

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 47

In a transistor, the reverse saturation current ICO.

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 48

The phenomenon known as "Early Effect" in a bipolar transistor refers to a reduction of the effective base-width caused by

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 49

In a common collector amplifier the voltage gain is

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 50

What is the phase shift between the input and output voltage in a common-base small signal amplifier (assuming ideal coupling and by pass capacitors) ?

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 51

When a unit impulse voltage is applied to an inductor of 1 H, the energy supplied by the source is

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 52

For the circuit shown in figure given below, assumeb=hFE = 100. The transistor is in

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 53

In the circuit as shownb = 99, VBE = 0.6 V, then what are the values of VC and IC corresponding to the operating point ?

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 54

Consider a silicon transistor connected as a common emitter amplifier as shown below.The quiescent collector voltage of the circuit is approximately

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 55

In the transistor circuit shown below, the collector-to- ground voltage is + 20 V. The possible condition is

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 56

Generally, the gain of a transistor amplifier falls at high frequencies due to the

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 57

In a JFET drain current is maximum when VGS is

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 58

The iron core in a transformer provides a _______ path to the main flux.

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 59

A transformer transforms

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 60

If the applied voltage to a transfomer primary is increased by keeping the V/f ratio fixex, then the magnetizing current and the core loss will, respectively:

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 61

While performing the open circuit and shortcircuit tests on transformer to determine parameters the status of the low voltage (LV) and high voltage (HV) windings will be such that

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 62

The size of the transformer core depends upon

 

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 63

Grain oriented laminated sheet in transformer reduces

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 64

The colour of fresh dielectric oil used in transformer is

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 65

Distribution transformers have core losses

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 66

In Scott connection, if the turns ratio of main transformer is K, then the teaser transformer has turns ratio of

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 67

A 2V/1V two- winding transformer is connected as an autotransformer. Its voltage regulation as an autotransformer compared to the two-winding transformer is :

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 68

It is advisable to use auto-transformation ratio is

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 69

The black box as shown in the circuit below contains resistors and independent sources. For R = 0 and 2, the value of current 1 is 3 and 1.5 respectively. The value of 1 for R = 1 will be

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 70

For the network shown as below, when 1 = 0, V = 20 V and when R = 0, l = 10 A. if now R =3W, what is the value of the current l?

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 71

In the below shown circuit, if V = 3 volts for E = 1 volt, l = 0; and V = 2 volts for l = 2A and E=0. When E =1 volt and l is replaced by a resistor of 2 ohm, then what is the value of V ?

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 72

The incandescent bulbs rated respectively as p1 and P2 for operation at a specified mains voltage are connected in series across the mains as shown in the above figure. Then the total power supplied by the mains to the two bulbs are

 

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 73

Three parallel branches of resistors are connected across a d.c. source as shown in the figure. Whatis l1 : l2: l3 ?

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 74

The power factor of a power transformer on no load will be aboutn

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 75

Power transformed from primary to secondary depends upon

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 76

An induction motor when started on load does not accelerate up to full speed but runs at 1/7th of the rated speed. The motor is said to be

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 77

The crawling in the induction motor is caused by

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 78

The voltage actually used for setting up of the useful flux in the air gap of a 3-phase induction motor is

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 79

In induction motor air gap power is 10 kW and mechanically developed power is 8 kW. Wha tare the rotor ohmic losses?

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 80

What is the frequency of rotor current of a 50 Hz induction motor operating at 2% slip

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 81

The supply voltage to an induction motor is reduced by 10%. By what percentage,approximately, will the maximum torque decrease

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 82

An 8-pole single phase induction motor is running at 690 rpm. What is its slip with respect to forward and backward fields, respectively

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 83

A 3-phase squirrel-cage induction motor is started by means of a star/delta switch. What is the starting current of the motor

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 84

What is the operating slip of a 400 V, 50 Hz, 6- pole, 3-phase induction motor, while the speed is 936 rpm with a 400 V, 48 Hz, 3-phase supply

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 85

The power input to a 415 V, 50 Hz, 6 pole 3- phase induction motor running at 975 rpm is 40kW. The stator losses are 1 kW and friction and windage losses total 2 kW. What is the efficiency of motor

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 86

In a 3-phase induction machine, motoring generating and braking operations take place in the range of slip "s" is

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 87

A squirrel cage induction motor having a rated slip of 2% on full load has a starting torque of 50% of full load torque. The starting current is

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 88

What is the correct expression for the electrical power developed by a hydro-electric plant in KW

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 89

What is the approximate efficiency of a normal thermal power station

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 90

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

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 91

A universal motor runs at

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 92

The bus admittance matrix of a power system is given as  

The impedance of line between bus 2 and 3 will be equal to

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 93

At slack bus, which one of the following combinations of variables is specified 

(The symbols have their usual meaning)

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 94

A sample power system network is shown in the figure given below. The reactances marked are in p.u. What is the pu value of Y22 of the Bus Admittance matrix (YBUS)

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 95

The per-unit impedance of a circuit element of 0.15. If the base kV and base MVA are halved then the new value of the per-unit impedance of the circuit element will be

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 96

The per-unit impedance of an alternator corresponding to base values 13.2 kV and 30MVA is 0.2 p.u. The p.u. value of the impedance for base values 13.8 kV and 50 MVA in p.u.will be

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 97

For a given base voltage and base volt-amp, the per unit impedance value of an element is X. What will be the per-unit impedance value of this element when the voltage and volt-amp bases are both doubled

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 98

Rotameter is used for measuring

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 99

What is a differential transformer

Technical Test SSC JE: Electrical Engineering (EE)- 12 - Question 100

The principle of operation of LVDT is based on variation of

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