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SSC JE (Electrical) 2023 Official Paper-I (Held On: 10 Oct, 2023 Shift 3) (English)
SSC JE (Electrical) 2023 Official Paper-I (Held On: 10 Oct, 2023 Shift 3) (English) with official questions, answers, and practice mock test.
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Section 1
General Intelligence and Reasoning
47 questions
Section Test
1
Two statements are given followed by two conclusions numbered I and II. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements. Statements: All dogs are cats. Some cows are cats but not dogs Conclusions: I. Some dogs are cows. II. Some cats are both dogs and cows.
MCQ
Correct answer: Neither conclusion I nor II follows
2
Select the option that represents the correct order of the given words as they would appear in an English dictionary. 1. Object 2. Obey 3. Obligation 4. Obedience 5. Obligatory
MCQ
Correct answer: 4, 2, 1, 3, 5
3
Each of the seven friends, Misha, Minshu, Mohi, Priya, Veer, Pari and Krishi, has a different height. Krishi is taller than only three people. Pari is taller than only Veer. Misha is taller than Minshu but not Mohi. Priya is taller than Mohi. Who is tallest among them?
MCQ
Correct answer: Priya
4
Which of the following options will replace the question mark (?) in the given series?,?,17 289317
MCQ
Correct answer: [Diagram / Option 1]
5
If ‘+’ means ‘–’, ‘–’ means ‘×’, ‘×’ means ‘÷’, ‘÷’ means ‘+’, then what will come in place of the question mark (?) in the following equation? 41 ÷ 18 – 7 + 322 × 23 = ?
MCQ
Correct answer: 153
6
Daisy starts walking from her house and goes 20 m west. From there she turns right and walks a certain distance called P m. Then she turns right and walks 30 m. She turns right again and walks 40 m. After that, she takes a final right turn and walks 10 m. If Daisy’s current position is 5 m south of her home, then what is the value of P?
MCQ
Correct answer: 35
7
Select the word-pair that best represents a similar relationship to the one expressed in the pair of words given below. (The words must be considered as meaningful English words and must not be related to each other based on the number of letters/numbers of consonants/vowels in the word) INDIA : NEW DELHI
MCQ
Correct answer: RUSSIA : MOSCOW
8
Select the option in which the given figure is embedded (rotation is NOT allowed).
MCQ
Correct answer: [Diagram / Option 2]
9
In a certain code language, ‘LIGHTS’ is written as ‘93’ and ‘BATTER’ is written as ‘102’. How will ‘BRING’ be written in that language?
MCQ
Correct answer: 90
10
Select the set in which the numbers are related in the same way as are the numbers of the following sets. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g., 13 – Operations on 13 such as adding/subtraction/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed) (33,6,54) (22, 7, 30)
MCQ
Correct answer: (26, 8, 36)
11
Select the option that represents the letters which, when sequentially placed from left to right in the blanks below, will complete the letter series. L _ M B _ _ G M _ O L _ M B O
MCQ
Correct answer: G O L B G
12
Which of the following numbers will replace the question marks (?) in the given series? 20, 30, 42, 56, ?, 90
MCQ
Correct answer: 72
13
Select the option that represents the correct order of the given words as they would appear in an English dictionary. 1. Whisker 2. Whistle 3. Wistful 4. Wither 5. Whisper 6. Wishful
MCQ
Correct answer: 1, 5, 2, 6, 3, 4
14
Select the figure from the options that can replace the question mark and complete the given pattern
MCQ
Correct answer: [Diagram / Option 3]
15
Select the word-pair in which the two words are related in the same way as are the two words in the given pair. (The words must be considered as meaningful English words and must not be related to each other based on the number of letters/number of consonants/vowels in the word.) Seismology : Earthquake
MCQ
Correct answer: Herpetology : Amphibians
16
Which two signs should be interchanged to make the given equation correct? 11 – 8 + 78 ÷ 6 × 37 = 64
MCQ
Correct answer: – and ×
17
In a certain code language, 'PETS' is coded as '48', and 'FARM' is coded as '70'. How will 'DAIRY' be coded in that language?
MCQ
Correct answer: 78
18
Arrange the following words in a logical and meaningful order. 1. Quadrilateral 2. Heptagon 3. Pentagon 4. Hexadecagon 5. Dodecagon
MCQ
Correct answer: 4, 5, 2, 3, 1
19
A man departs from his house and walks 10 m towards north. He then turns left and walks 15 m. Now, he turns right and walks 7 m and stops. A pole is placed exactly 15 m east from where he stands. How far and in which direction is his house from the pole? (Assuming that all turns are 90 degree turns only.)
MCQ
Correct answer: 17 m, south
20
Select the option that is related to the fourth term in the same way as the first term is related to the second term and the fifth term is related to the sixth term? 54 : 3 :: ? : 9 :: 432 : 6
MCQ
Correct answer: 1458
21
Which letter-cluster will replace the question mark (?) to complete the given series? TTIR, PHMJ, LVQB, ?, DXYL
MCQ
Correct answer: HJUT
22
In a certain code language, “DILQ” is written as “FKNS” and “SBGK” is written as “UDIM”. How will “FORA” be written in that language?
MCQ
Correct answer: HQTC
23
Ten people are sitting in two parallel rows containing 5 people each, in such a way that there is equal distance between adjacent persons. In Row 1 – A, B, C, D and E are seated and all of them are facing the south. In Row 2 – P, Q, R, S and T are seated and all of them are facing the north. Thus, each person is facing another person from the other row. B is sitting third to the left of A. P is facing an immediate neighbour of A. Q is sitting third to the right of P. C is facing S. D is sitting second to the right of the person who is facing T. Who amongst the following is NOT sitting at any of the extreme ends of the row?
MCQ
Correct answer: C
24
Select the correct combination of mathematical signs that can sequentially replace the boxes and balance the given equation.
MCQ
Correct answer: ̶ , ̶ , ÷, =, ×, +
25
Select the option in which the given figure is embedded rotation is NOT allowed)
MCQ
Correct answer: [Diagram / Option 2]
26
Select the word-pair in which the two words are related in the same way as are the two words in the given pair. (The words must be considered as meaningful English words and must not be related to each other based on the number of letters/number of consonants/vowels in the word.) Hamper : Retard
MCQ
Correct answer: Insipid : Tedious
27
Select the word-pair that best represents a similar relationship to the one expressed in the pair of words given below. (The words must be considered as meaningful English words and must not be related to each other based on the number of letters/number of consonants/ vowels in the word.) Mustang : Horse
MCQ
Correct answer: Burmese : Cat
28
Two dimensions of the same dice are given below Which of the following faces is opposite to the face having digit 3
MCQ
Correct answer: [Diagram / Option 3]
29
Select the option that is embedded in the given figure (rotation is NOT allowed).
MCQ
Correct answer: [Diagram / Option 2]
30
‘OU22’ is related to ‘LF11’ in a certain way. In the same way, ‘TN12’ is related to ‘GM6’. Which of the following is related to ‘AP22’ using the same logic?
MCQ
Correct answer: ZK44
31
A & B means ‘A is the wife of B’. A # B means ‘A is the father of B’. A @ B means ‘A is the Son B’. A% B means ‘A is the husband of B’. A+B means ‘A is the mother of B’. If A & B # C & D @ E % F + G, then how is C related to G?
MCQ
Correct answer: Brother's wife
32
Select the option that is related to the third term in the same way as the second term is related to the first term and the sixth term is related to the fifth term. 3 : 20 :: 7 : ? :: 11 : 68
MCQ
Correct answer: 44
33
How many triangles are there in the given figure?
MCQ
Correct answer: 24
34
Select the number from among the given options that can replace the question mark (?) in the following series. 1, 6, 28, 71, 139, 236, ?
MCQ
Correct answer: 366
35
Select the option in which the given figure is embedded (rotation is NOT allowed).
MCQ
Correct answer: [Diagram / Option 4]
36
Select the option that is embedded in the given figure (rotation is NOT allowed).
MCQ
Correct answer: [Diagram / Option 2]
37
If A denotes ‘+’, B denotes ‘ב, C denotes ‘−’, and D denotes ‘÷’, then what will come in place of ‘?’ in the following equation? 89 C 8 A ( 18 B 2 ) D 4 = ?
MCQ
Correct answer: 90
38
Three statements are followed by three conclusions numbered I, II and III. You have to consider these statements to be true, even if they seem to be at variance with commonly known facts. Decide which of the given conclusions logically follow/s from the given statements. Statements: Few mountains are rivers. Most rivers are valleys. All valleys are hills. Conclusions: (I) Few mountains are valleys. (II) Some hills are mountains. (III) Some rivers are hills.
MCQ
Correct answer: Only conclusion III follows
39
Select the option that is related to the third term in the same way as the second term is related to the first term and the sixth term is related to the fifth term. 17 : 374 :: 14 : ? :: 13 : 234
MCQ
Correct answer: 266
40
Select the correct mirror image of the given figure when the mirror is placed at MN as shown below.
MCQ
Correct answer: K TE IBN IO I HB NI
41
Select the option that is related to the fourth number in the same way as the first number is related to the second number and the fifth number is related to the sixth number. 10 : 7 :: ? : 12 :: 32 : 18
MCQ
Correct answer: 20
42
Which letter cluster will replace the question mark (?) to complete the given series? MKXB, OOAC, QSDD, ?
MCQ
Correct answer: SWGE
43
Select the option that represents the letters that, when sequentially placed from left to right in the blanks below, will complete the letter series. R _ _ K U _ I N _ U R I _ K _ R I _ _ U
MCQ
Correct answer: I N R K N U N K
44
Select the correct option that indicates the arrangement of the following words in a logical and meaningful order. 1. Shelf 2. Wood 3. Plank 4. Tree 5. Cupboard
MCQ
Correct answer: 4 2 3 1 5
45
Select the option that represents the letters that, when sequentially placed from left to right in the blanks below, will complete the letter series. A _ _ J L _ D G _ L A D _ J _ A D _ _ L
MCQ
Correct answer: D G A J G L G J
46
A is B’s wife. F is the grandson of B. D is the father of F. C is A’s daughter. How is F related to C?
MCQ
Correct answer: Brother’s son
47
Select the option in which the given figure is embedded (rotation is NOT allowed).
MCQ
Correct answer: [Diagram / Option 1]
Section 2
General Awareness
51 questions
Section Test
48
In a certain code language, 'BRANCH' is coded as DUCQEK and 'CARBON' is coded as EDTEQQ. How will 'DRIVEN' be coded in that language?
MCQ
Correct answer: FUKYGQ
49
Six friends are sitting in a circle. All of them are facing the centre. Samir is an immediate neighbour of Kiran. Gagan is an immediate neighbour of Pran and Vyom. Suman sits second to the right of Gagan. Kiran sits second to the right of Vyom. Who sits third to the right of Suman?
MCQ
Correct answer: Pran
50
Select the option that is related to the third word in the same way as the second word is related to the first word. (The words must be considered as meaningful English words and must not be related to each other based on the number of letters/number of consonants/vowels in the word) Persuade : Discourage : : Profound : ?
MCQ
Correct answer: Superficial
51
Which of the following refers to the net money value of all the final goods and services produced by the normal residents of a country, during a period of one year?
MCQ
Correct answer: Net National Product at factor cost
52
Which 19th century German chemist visualised the ring structure of benzene in 1865?
MCQ
Correct answer: Friedrich August Kekule
53
What does the word Gopuram mean in the context of temple architecture of South India?
MCQ
Correct answer: Entrance gateway in front wall of the temple
54
The Prime Minister’s Employment Generation Programme (PMEGP) was launched by which Ministry of the Government of India during 2008-09?
MCQ
Correct answer: Ministry of Micro, Small and Medium Enterprises
55
_________ will be declared if the umpire thinks the batsman did NOT have a reasonable opportunity to score off the delivery.
MCQ
Correct answer: Wide
56
The salary and allowance of the Prime Minister of India is determined by the __________.
MCQ
Correct answer: Parliament
57
The Central Board of Direct Taxes (CBDT) has implemented the Income-tax (25th Amendment) Rule 2021 which states that any interest accrued in a PF account for contributions of more than ______ per financial year will be taxed.
MCQ
Correct answer: 5 lakhs
58
Which iron and steel plant was established near the confluence of the rivers Subarnarekha and Kharkai?
MCQ
Correct answer: Tata Iron and Steel Company Limited
59
Who was responsible for causing the partition of Bengal?
MCQ
Correct answer: Lord Curzon
60
In which form have earth forming materials been distributed?
MCQ
Correct answer: Layers
61
What are thunderstorms in Assam during the month of ‘Baisakhi’ called?
MCQ
Correct answer: Bardoisila
62
Which Act abolished the powers so long enjoyed by the Board of Control?
MCQ
Correct answer: Act of 1858
63
The White Paper on the five themes of Youth20 (Y20) was launched by ________ in Guwahati in February 2023.
MCQ
Correct answer: Anurag Thakur
64
Pandit Shiv Kumar Sharma, a renowned instrumentalist, published which of the following books as his autobiography?
MCQ
Correct answer: Journey with a Hundred Strings: My Life in Music
65
Which of the following diseases is caused by Rhino viruses?
MCQ
Correct answer: Common cold
66
Article 44 of the Indian Constitution is related to ___________.
MCQ
Correct answer: uniform civil code for the citizens
67
EV Ramaswamy Naicker founded the _________ Movement.
MCQ
Correct answer: Self-Respect
68
NABARD came into being in 1982. With how much initial capital was it set up?
MCQ
Correct answer: ₹100 crore
69
According to Census of India 2011, how much per cent of the total population were Sikhs?
MCQ
Correct answer: 7%
70
A provision has been inserted to empower the Assessing Officer to require a ______ for inventory valuation before tax assessment in case of appeals as per Finance Bill 2023.
MCQ
Correct answer: cost audit
71
Where can you find solid form of water?
MCQ
Correct answer: Polar region
72
Famous musician Ustad Amjad Ali Khan was born in 1945 in ________.
MCQ
Correct answer: Gwalior
73
Which field should be used when you want to send a copy of the email to someone else without the original recipient knowing?
MCQ
Correct answer: BCC
74
Which of the following is an example of good netiquette when participating in online discussion or forums?
MCQ
Correct answer: Reading the discussion thread before posting to avoid repeating previous points
75
These volcanoes are mostly made up of basalt, a type of lava that is very fluid when erupted. For this reason, these volcanoes are not steep. Which of the following volcano is an example of the above given type of volcano?
MCQ
Correct answer: Hawaiian Volcano
76
The 11th Fundamental Duty was added to the Constitution of India by the________ Constitutional Amendment Act.
MCQ
Correct answer: 86th
77
Which of the following terminologies describes the areas where ecological communities, ecosystems or biotic regions coincide?
MCQ
Correct answer: Ecotones
78
The second five-year plan introduced to the concept of public sector of state-run enterprises based on the ____________ model of industrialisation.
MCQ
Correct answer: Russian
79
Plants of which family have a highly compressed inflorescence branching system called a capitulum or flower head in which all the flowers are attached to a receptacle surrounded by unbranched bracts?
MCQ
Correct answer: Asteraceae
80
Which of the following is NOT a former name of Lakshadweep?
MCQ
Correct answer: Kavaratti Island
81
Al Biruni wrote famous book “Kitab ul Hind” in __________ language.
MCQ
Correct answer: Arabic
82
Heal in India is an initiative of the Indian Government aimed at promoting ____________ in the country.
MCQ
Correct answer: medical tourism
83
In which of the following dance forms the faces of dancers are made up to look like painted masks and the costume consists of a full skirt, a heavy jacket, numerous garlands and necklaces and a towering headdress?
MCQ
Correct answer: Kathakali
84
Who has cracked the Panini code in his thesis?
MCQ
Correct answer: Rishi Rajpopat
85
Arjun Singh Dhurve, a Baiga folk dance teacher received the Padma Shri in 2021-22. To which state do the Baigas mainly belong?
MCQ
Correct answer: Madhya Pradesh
86
The idea of ‘Fundamental Rights’ was taken from the constitution of which of the following countries?
MCQ
Correct answer: Constitution of the United States
87
Manoj Sinha, who is the second Lieutenant Governor of the Union territory of Jammu and Kashmir, hails from ________.
MCQ
Correct answer: Uttar Pradesh
88
The Bhitari Pillar inscription of which Gupta ruler narrates his fight with the Pushyamitras?
MCQ
Correct answer: Skandagupta
89
R–X is the general formula of which functional group in which one or more hydrogen atoms are replaced by Group 17 elements?
MCQ
Correct answer: Alkyl halides
90
Which of the following is NOT an Alicyclic compound?
MCQ
Correct answer: Isobutane
91
At maturity, _____ is a non-conductive cell composed of heavily thick-walled dead cells with lignin and high cellulose content (60%–80%), and it serves to provide structural support in plants.
MCQ
Correct answer: sclerenchyma cell
92
According the Census of India 2011, which state is the most densely populated?
MCQ
Correct answer: Bihar
93
According to NITI Aayog's Multidimensional Poverty Index (MPI) based on NFHS-4 (2015- 16), 51.91 per cent of the population of which state is multidimensionally poor?
MCQ
Correct answer: Bihar
94
The Gram Nyayalay Act was passed in the year __________________.
MCQ
Correct answer: 2008
95
Which of the following is a rabi crop?
MCQ
Correct answer: Wheat
96
Identify the organism that does NOT belong to the first level trophic level.
MCQ
Correct answer: Zooplankton
97
Identify an allotrope of carbon that is smooth and slippery.
MCQ
Correct answer: Graphite
98
Which vitamin deficiency in the diet causes Korsakoff syndrome, a chronic memory disorder that damages your brain?
MCQ
Correct answer: Thiamine
Section 3
General Engineering Electrical
102 questions
Section Test
99
According to Koepp en's Scheme of climate division of India match the following climates of India with the irrespective regions Climate Region l Cold humid winter with short summer a Coromandel coast of TamilNadu 2 Hot desert b Arunachal Pradesh 3 Monsoon with dry summer c Extreme Western Rajasthan
MCQ
Correct answer: 1-b, 2-c, 3-a
100
Bishop is used in which of the following games?
MCQ
Correct answer: Chess
101
The value of the current I in the circuit is 50 V 10 V 30 V 10 Q 30
MCQ
Correct answer: -0.75 A
102
In BJT, for common emitter configuration, the input characteristics are represented by a plot between which of the following parameters?
MCQ
Correct answer: VBE and IB
103
For providing controlling torque to a horizontally mounted MI instrument, which of the following methods is used?
MCQ
Correct answer: Spring control
104
Which of the following overhead conductor materials is preferred for the harmful gas (like ammonia) atmosphere?
MCQ
Correct answer: Phosphor bronze
105
The Norton's equivalent current between the load terminal A-Bwillbe: 50 10 A 150
MCQ
Correct answer: 5 A
106
A 2500 watts refrigerator works for 4 hours per day. Find the total unit of electricity used in 40 days.
MCQ
Correct answer: 400 units
107
For measuring the earth resistance by the fall-of-potential method, how many auxiliary electrodes are used?
MCQ
Correct answer: [Diagram / Option 2]
108
The electrical pressure measured between any two points in an electrical circuit is called _____.
MCQ
Correct answer: voltage
109
The barrier potential can be calculated by _________ (where, the symbols have their usual meaning).
MCQ
Correct answer: Eo= kT q In (N* NA / n;)
110
A permanent magnetic material has _________ retentivity.
MCQ
Correct answer: high
111
Which of the following statements is/are correct regarding black liquor? A) It retains more than 50% of the biomass energy of wood. B) It is a non-toxic substance produced when wood is burned into paper. C) Tall oil is an important by-product separated from black liquor by skimming.
MCQ
Correct answer: A and C
112
Consider two MOSFET’s A and B with the same overdrive voltage and sizes. MOSFET A is p- type MOSFET while MOSFET B is n-type MOSFET. Which of the following statements is true? a) MOSFET A has a higher transconductance b) MOSFET B has a higher transconductance c) MOSFET A and B have same transconductance due to same dimensions d) MOSFET A has a higher transconductance due to less mobility
MCQ
Correct answer: Only B
113
The admittance of an electric circuit is represented by Y = (3 + j4). What is the value of resistance in this circuit?
MCQ
Correct answer: 25
114
The ability of a capacitor to store charge does NOT depend on the ______.
MCQ
Correct answer: amount of charge
115
In an electrical network, if the quantity of a source is controlled by another voltage or current present in the circuit, such a source is called _______.
MCQ
Correct answer: dependent source
116
The split-phase induction motor is NOT used for drives that require more than _________.
MCQ
Correct answer: 1 KW
117
If the synchronous speed of a motor is 1000 rpm and the rotor speed is 970 rpm, then percentage slip is ________.
MCQ
Correct answer: 3%
118
A coal-fired thermal power plant generates 750 MW of electricity with a thermal efficiency of 30%. The coal has a heating value of 30,000 kJ/kg. Find the mass flow rate of the coal required to generate the required electricity.
MCQ
Correct answer: 83.33 kg/s
119
During working of a permanent magnet synchronous motor, __________________.
MCQ
Correct answer: rotor produces constant magnetic field and stator produces rotating magnetic field
120
If V-I characteristics is plotted for forward current by increasing the temperature, it has been seen that plot for V-I characteristics _________ as temperature increases.
MCQ
Correct answer: is moved to the left
121
Which of the following statements is accurate regarding wires and cables?
MCQ
Correct answer: Cables are made by stranding together many wires.
122
The deflecting torque in a PMMC instrument is proportional to _________________.
MCQ
Correct answer: the current flowing through the coil
123
Which expression is right about EMF equation of a transformer if f frequency Ni= number of turns in primary, Pm = maximum flux in a core, A = iron area, =maximum flux density
MCQ
Correct answer: E 4 44 f NiP m
124
For an AC circuit, the voltage and the current are given as V = (100 + j10) V and I = (20 − j10) A, respectively. The active power of the circuit is:
MCQ
Correct answer: P = 1900 W
125
Repulsion start induction run motors are used in applications such as ________.
MCQ
Correct answer: compressors
126
The load on the transformer changes every day, with a daily production of 120 kWh and a cumulative loss of 5 kWh. What is the all-day efficiency of the transformer?
MCQ
Correct answer: 96%
127
What type of rotor is used in alternators driven by hydro-turbines?
MCQ
Correct answer: Salient pole type
128
If a power station supplies 1000 MWh of electricity to its consumers for a period of two months, then the average demand during the period will be:
MCQ
Correct answer: 0.694 MW
129
Which of the following is true regarding reciprocity theorem?
MCQ
Correct answer: The ratio of the response to the excitation remains the same.
130
Which of the following connections is used as distribution transformer?
MCQ
Correct answer: Delta-star
131
A voltage of 230∠$60^\circ$ is applied to a current offering an impedance of 10 + j10 Ω. Find the expression for the current flowing through the circuit in polar form.
MCQ
Correct answer: 16 315 ' leading
132
Find the equivalent resistance across terminal a-b: 100 150 140
MCQ
Correct answer: 7Ω
133
A 25 V, 800 W bulb is connected to a 10 V source. The power consumed by the bulb is ________.
MCQ
Correct answer: 128 W
134
A supply of 200 V can be obtained from a source of 600 V by means of a two-winding transformer or an auto transformer. The ratio of weights of conductor material in the auto transformer with respect to the two-winding transformer is _____________.
MCQ
Correct answer: 1 : 1.5
135
Which of the following is NOT a type of tender, depending on the type of contract?
MCQ
Correct answer: Selected tender
136
Which law gives the direction of induced EMF?
MCQ
Correct answer: Lenz’s law
137
In an electrical signal waveform, if each value on the curve is proportional to sine of the angle of rotation of the coil, then such a wave is called _______.
MCQ
Correct answer: sine wave
138
The deflection sensitivity in a cathode ray oscilloscope (CRO) is ________ the mass of electron.
MCQ
Correct answer: inversely proportional to the square root of
139
The power consumed by the 3 o Q resistor is 100 300 300 V
MCQ
Correct answer: 3000 W
140
At the leading power factor, the armature reaction of an alternator is:
MCQ
Correct answer: partially cross magnetising and partially magnetising
141
Why is the hold-on coil connected in series with the shunt field in a three-point starter of a DC motor?
MCQ
Correct answer: To prevent the motor from running away in case of an open-field circuit
142
For an ideal short transmission line with zero voltage regulation, if receiving end voltage is 150 kV, then the sending end voltage will be:
MCQ
Correct answer: 150 kV
143
What is the main reason of placing field winding on the stationary rotor?
MCQ
Correct answer: Insulation of high voltage is made easy on stator than on rotor.
144
The current through the 2 Q resistor is 36 A
MCQ
Correct answer: 12A from a to b
145
A rectifier type instrument uses a bridge rectifier and has its scale calibrated in terms of rms value of a sine wave. It indicates a voltage of 3.33 V when measuring a voltage of a triangular wave shape. Calculate the peak value of the applied voltage?
MCQ
Correct answer: 6 Volts
146
Which of the following types of steel is used to make the core of a transformer?
MCQ
Correct answer: Silicon steel
147
Identify the correct voltage range of medium transmission line.
MCQ
Correct answer: >20 kV < 100 kV
148
With respect to measuring the current in a circuit using the CRO, which of the following statements is/are correct? I. A low-resistance standard resistor is connected in series with the circuit whose current is being measured. II. The CRO is connected across the standard resistor to measure the voltage drop across it. III. A high-resistance standard resistor is connected in parallel with the circuit where the current is being measured. IV. The CRO is connected in series with the circuit whose current is being measured.
MCQ
Correct answer: Only I and II
149
Calculate the apparent power of a circuit if the circuit has a power factor of 0.8 and the active power of the circuit is 40 W.
MCQ
Correct answer: 50 VA
150
Calculate the respective values of magnetising force and flux density at a distance of 10 cm from a long circular conductor carrying a current of 100π A, placed in air?
MCQ
Correct answer: 500 AT/m and 6.28 × 10-4 Wb m
151
The standard percentage of the tender amount for the security deposit is ____.
MCQ
Correct answer: 10
152
For the circuit shown below the voltage across 1 oF and 4 oF capacitors are: C 4=10 F C 3=40 F +V 1- +V 2' 10 V C 2=3 F Ci=5 F
MCQ
Correct answer: 4 V and 1 V, respectively
153
Consider the following statements about the working of a hysteresis motor and choose the suitable combination of correct choices. a. The stator of the hysteresis motor has a main winding along with an auxiliary winding. b. When the stator winding is fed from a single phase supply, it produces a synchronously revolving magnetic field. c. The rotor material has low retentivity so hysteresis loss is low. d. The rotor of the hysteresis motor consists of a smooth cylinder of magnetically hard steel, without winding
MCQ
Correct answer: Only a, b and d are correct.
154
The wavelength of a sodium vapour lamp is ____________.
MCQ
Correct answer: 589 nm
155
Which of the following statements accurately describes voltage drop due to armature leakage reactance in an alternator on load?
MCQ
Correct answer: The voltage drop due to armature leakage reactance increases with increasing load.
156
A switched reluctance motor can produce torque at a speed __________.
MCQ
Correct answer: equal to synchronous speed
157
The height between the two supports of a transmission and distribution overhead line can be determined as:
MCQ
Correct answer: (Vertical distance between the higher height support point of the conductor and Lowest point of the conductor) - (Vertical distance between the lower height support point of the conductor and lowest point of the conductor
158
Which phase of the project management lifecycle often takes the longest to wrap up?
MCQ
Correct answer: Execution
159
Which of the following statements is NOT correct about the significance of stationary armature alternator?
MCQ
Correct answer: The output current can be easily taken from rotor winding.
160
In the circuit shown below the value of the current I is 3 A 12 V
MCQ
Correct answer: -2 A
161
The following test results were obtained from a 6 kVA, $\frac{200}{400}$ V, 50 Hz single-phase transformer: Data for no-load low-voltage side: 200 V, 0.5 A and 50 W. At normal voltage and frequency, determine the magnetising current of the transformer.
MCQ
Correct answer: 0.433 A
162
A balanced star connected load of 4 + j3 Ω per phase connected to a 3-phase, 230 V (phase value) supply. Find the value of active power.
MCQ
Correct answer: 25.4 kW
163
The transfer characteristic of JFET is drawn between:
MCQ
Correct answer: Ipss and VG s
164
In an electronic circuit, the potential difference across any one resistor is a fraction of the total voltage applied across the series combination. Such a circuit is called ______.
MCQ
Correct answer: voltage divider circuit
165
Reciprocity theorem CANNOT be applied to the circuit having ______.
MCQ
Correct answer: non-linear elements and multi -sources
166
The phasing out test on a three-phase transformer is carried out to find _______________.
MCQ
Correct answer: primary and secondary windings belonging to the same phase
167
Which of the following statements is true about selection of the size of units in electrical energy generation?
MCQ
Correct answer: The size should be selected such that the unit operates close to the load curve of the station.
168
Which of the following is NOT a desirable property for the insulating materials used in an underground cable?
MCQ
Correct answer: Hygroscopic
169
If the frequency of supply in a three core underground cable is doubled, the charging current will be ______.
MCQ
Correct answer: double
170
Which of the following statements is FALSE in association with synchronous motor applications?
MCQ
Correct answer: Synchronous motor is highly suitable for low power output below 40 kW in medium speed range.
171
चुंबकीय परिपथों के मामले में, चुंबकीय अभिवाह उत्पन्न करने वाले बल को _________ कहा जाता है।
MCQ
Correct answer: MMF
172
The change in current through a junction diode is 1.5 mA when the forward bias voltage is changed by 0.6 V. The dynamic resistance is ________.
MCQ
Correct answer: 400 Ω
173
Which of the following is NOT an advantage of shell type transformers over core type transformers?
MCQ
Correct answer: Easy maintenance
174
In a capacitor-start capacitor-run induction motor, under standstill condition forward and backward voltages are ________.
MCQ
Correct answer: equal in magnitude
175
Find the electrical energy consumed in 10Ω resistance when 100 mA current flows for 2 minutes.
MCQ
Correct answer: 12 J
176
In an electrical circuit, the current that changes periodically, both in magnitude and direction, at regular intervals of time is called ______.
MCQ
Correct answer: alternating current
177
Find the estimated current taken by the primary side if a single-phase transformer with a voltage ratio of $\frac{440}{110}$ V takes a no-load current of 5 A at 0.2 power factor lagging and the secondary supplies a current of 120 A at a power factor of 0.8 lagging. Given that cos($41^\circ$36’) = 0.748.
MCQ
Correct answer: V 1149.4 A
178
Which of the following is the correct interrelation between the variables x1 and x2 used in the expression to calculate the sag in a transmission conductor with different heights, where , variables x1 and x2 represent the horizontal distances of support at lower and higher levels from the lowest point of the conductor, respectively?
MCQ
Correct answer: x1 < x2
179
Three-point lighting is usually employed in film lighting schemes. Which of the following does NOT form a part of the scheme?
MCQ
Correct answer: Bounce lighting
180
Which of the following lighting calculation methods is handy and quick?
MCQ
Correct answer: Watts per square metre method
181
An LC circuit with inductance L = 2H and capacitance C = 8 μF is connected to an AC source. Find the value of the power factor of combination.
MCQ
Correct answer: 0
182
In AC series motor, power factor is low because of ______________.
MCQ
Correct answer: high inductance of the field and armature circuit
183
Which of the following is a ferromagnetic material?
MCQ
Correct answer: Nickel
184
Choose the most efficient generator for wind power generation.
MCQ
Correct answer: Doubly-fed induction generator
185
What is the use of encoder in the DC servomotor?
MCQ
Correct answer: Determines the rotational speed of the motor
186
The advantage of the stationary armature of a synchronous machine is:
MCQ
Correct answer: perfect mechanical balance is obtained on stator winding
187
In a pure inductive circuit, if the frequency of the AC source is doubled, then its inductive reactance will:
MCQ
Correct answer: be doubled
188
In electromagnetic induction, the energy is supplied to the circuit and a part of this supplied energy is spent to meet ____.
MCQ
Correct answer: I2R losses
189
Which of the following should NOT be prioritised when making a comparison statement for the tender evaluation sheet/format?
MCQ
Correct answer: Supplier’s name
190
What is the function of the phosphor-coated screen in a CRT?
MCQ
Correct answer: It is the part that emits light
191
In the context of electromagnetic induction, if the magnetic fluxes of two coils oppose each other, then the connection is called ______.
MCQ
Correct answer: series opposing
192
In the circuit shown below the current I in the circuit is 100 20 V 30 V
MCQ
Correct answer: -1 A
193
The horizontal amplifier should be designed for ____________.
MCQ
Correct answer: high amplitude signals with a slow rise time
194
In case of thermal efficiency, by using which of the following relations can 1 KWh of electrical energy be converted into joules?
MCQ
Correct answer: 1 kWh = 3 36 x 105 joules
195
A substation is a facility that transmits and distributes electricity. It serves as an intermediary between electricity plants and end users. Which of the following statements about substations is INCORRECT?
MCQ
Correct answer: Domestic consumers may also connect directly to the main transmission network.
196
The actual efficiency of a solar power plant is lower than its theoretical efficiency. Which of the following can be reasons for this? I) Recombination of electrons and holes II) Internal resistance of the cell
MCQ
Correct answer: Both I and II
197
In motor applications, efficiency of the motor is always less than 100% due to conversion of the _____.
MCQ
Correct answer: input energy into heat
198
Which of the following statements is NOT correct about active power in an AC circuit?
MCQ
Correct answer: Active power is the power dissipated in the pure inductance.
199
In the split-phase induction motor, both main winding and starting winding are displaced _________ in space.
MCQ
Correct answer: 90 degrees
200
Which of the following is the correct expression for eddy current (We) loss if Bmax = Maximum flux density, f = Frequency of magnetic reversal, t = Thickness of each lamination and V = Volume of the armature core?
MCQ
Correct answer: = k BM axf We f 2 t watts