BSPHCL JE Electrical Previous Year Question Papers
1. Which of the following is/are the main types of computer chips?
• Primary memory chip
• Microprocessor chip
• Both (a) and (b)
• None of these
Answer: Both (a) and (b)
2. ……… If the open wire comes in contact with metal, where will the excess current go?
• Power house
• Dynamos
• Earth
• Transformer
Answer : Earth
3. What is the synonym of ‘Yamuna’?
• Kalindini
• Bhagirathi
• Yamini
• Kalindi
Answer: Kalindi
4. What is the shortcut key to open Windows Explorer (File Explorer)?
• Windows key + E
• Windows key + w • Windows key
+ O
• Ctrl + O
Answer: Windows key + E
5. According to the 2011 census, Bihar state is at what position in the country in terms of population?
• First
• Second
• Third
• Fourth
Answer: Third
6. The mother of ‘L’ is ‘K’. The son of ‘K’ is ‘J’. The brother of ‘M’ is ‘N’. The daughter of ‘L’ is ‘M’. The grandmother of ‘J’ is ‘0’. How is ‘N’ related to ‘K’?
• Granddaughter
• Grandson
• Grandmother
• Great-grandson
Answer: Grandson
7. Which of the following is the synonym of ‘Indra’?
• Madhava
• Arvind
• Manoj
• Nilaya
Answer: Madhava
8. In induction motor, if one phase is removed for example one terminals will have ‘Y’ phase and one terminal will have ‘B’ phase, this is
called – • AC dynamic insulating
• Plugging
• Step insulating
• It is called increasing motor torque
Answer: This is called AC dynamic insulating
9. The indirect form of the sentence: Aftabh asked his wife, ”Where is my book?” is:
• Aftabh aksed his wife where is my book
• Aftabh asked his wife where his book was
• Aftabh asked his wife where his book is
• Aftabh asked his wife where is his book
Answer: Aftabh asked his wife where his book was
10. What is the function of emitter bypass capacitor in an amplifier?
• Providing low resistance path for AC signal
• Providing high resistance path for AC signal
• Acting as low resistance path for DC signal
• Providing short circuit for DC signal
Answer : Providing low resistance path for AC signal
11. Which of the following is a static exciter?
• DC separately excited generator
• Amplidyne
• Metadyne
• Rectifier
Answer : Rectifier
12. What is the smallest change in the input signal that can be detected by an instrument?
• Accuracy
• Precision
• Resolution
• Sensitivity
Answer : Resolution
13. If the 11th day of a month is Saturday, then which day will fall on the 27th of the same month?
• Monday
• Saturday
• Friday
• Sunday
Answer: Monday
14. What will happen if the field winding is accidentally disconnected from a rotating DC shunt motor?
• The motor will stop suddenly
• The motor will run normally
• The motor will run dangerously
• Any of the above
Answer: The motor will run dangerously
15. In a capacitor start single-phase induction motor, the capacitor
is • connected in series with the main winding
• connected in series with the auxiliary winding
• connected in series with both the windings
• connected in lateral connection with the auxiliary winding
Answer: connected in series with the auxiliary winding
16. Determine the total power (in kW) consumed by a 3-phase delta connected system supplied by a line voltage of 240 V, when the phase current is 20 A and the current lags the voltage by 60 degrees?
• 9.4
• 8.6
• 8.2
• 7.2
Answer: 7.2
17. Who was the founder of the concept of “Sarvodaya”?
• K.G. Mushruwala
• Mahatma Gandhi
• Vinoba Bhave
• Jai Prakash Narayan
Answer: Mahatma Gandhi
18. ……….. EMF Which parts of the armature electric circuit take active part in production?
• Surface of the coil inside the slot
• Overhang
• Both surface and overhang of the coil inside the slot
• Commutator section
Answer: Surface of the coil inside the slot
19. Dry ice is the solid form of?
• Carbon dioxide
• Water
• Air
• Nitrogen
Answer : Carbon dioxide
20. Armature current can be reduced during starting by maintaining?
• Rf max and Ra min
• Ra max and Rf max
• Ra min and Rf min
• Ra max and Rf min
Answer : Ra max and Rf min
21. According to the census of year 2011, the population density of India is?
• 362 persons/km2
• 353 persons/km2
• 382 persons/km2
• 375 persons/km2
Answer : 382 persons/km2
22. On which of the following is it cheaper to transmit electricity?
• Very high voltage
• Very low voltage
• Very high current
• None of these
Answer : Very high voltage
23. In the following question, four spellings are given for a word. Pick the right choice which has the correctly spelt.
• Grammatical
• Gramatcal
• Grammetical
• Grammitical
Answer : Grammatical
24. What is the air preheater called in a thermal power plant?
• Safety device
• Efficiency enhancing device
• Starting device
• Very important device
Answer : Efficiency enhancing device
25. ………. A freshly painted a surface can be electronically dried by what?
• By convective thermal
• Induced thermal
• Paraelectric thermal
• By emissive thermal
Answer : Paraelectric thermal
26. What type of device is a computer mouse?
• Input
• Output
• Software
• Storage
Answer: Input
27. Which of the following statements is correct for Ohm’s law?
• Ohm’s law applies to diode
• Ohm’s law does not apply to diode
• Ohm’s law does not apply to voltage regulator
• Ohm’s law does not apply to transistor
Answer: Ohm’s law does not apply to diode
28. Which of the following is not an input device?
• Scanner
• Mouse
• Printer
• None of these
Answer: Printer
29. What is the computer language COBOL useful for?
• Commercial work
• Graphic work
• Scientific work
• None of these
Answer: Commercial work
30. When the current winding of a single-phase induction motor is short-circuited:
• It will run slow
• It will spark at low load
• It will draw excessive current and become hot
• None of these
Answer: It will draw excessive current and become hot
31. From which region does visible light emerge in an LED –
• Region of depletion layer
• Only p region
• Only n region
• Both p and n regions
Answer: Region of depletion layer
32. The cost of power generation in a power plant can be reduced most effectively when …….
• Diversity factor alone increases
• Both diversity factor and load factor increase
• Load factor alone increases
• Both diversity factor and load factor decrease
Answer : Both diversity factor and load factor increase
33. The total number of pins in 8085 is?
• 20
• 30
• 40
• 50
Answer : 40
34. The capacity of a battery is expressed in terms of …….
• Current rating
• Ah rating
• Voltage rating
• None of these
Answer : Ah rating
35. Decimal 15 will be equal to?
• 0111
• 1111
• 1011
• 1101
Answer: 1111
36. Which of the following is trivalent?
• Boron
• Aluminium
• Indium
• All options are correct
Answer: All options are correct
37. Lux, foot-candle, lumen per square foot are related as follows. Choose the best?
• One foot c. > 10.76 lux = one lumen per square foot
• One foot c. < 10.76 lux > one lumen per square foot
• One foot c. = 10.76 lux = one lumen per square foot
• One foot c. > 10.76 lux > one lumen per square foot
Answer : One foot c. = 10.76 lux = one lumen per square foot
38. In which part of the transmission system errors occur most?
• Underground cables
• Transformers
• Overhead line
• Alternator
Answer : Overhead line
39. In a UJT relaxation oscillator, the value of RBB is 5 kᘯ and stand off ratio at IE = 0 is n = 0.6. Then the value of RB2 is?
• 3.0kᘯ
• 2.4kᘯ
• 1.1kᘯ
• 2.0kᘯ
Answer : 2.0kᘯ
40. If any digit or letter is above the base line and smaller, then it is called the following?
• Outlined
• Raised
• Superscript
• Subscript
Answer : Superscript
41. The language of Kabir was……
• Hindi
• Sadhukaddi
• Awadhi
• Gujarati
Answer: Sadhukaddi
42. Which type of fire extinguisher is not suitable for electrical fire?
• foam extinguisher
• carbon dioxide extinguisher
• soda acid extinguisher
• dry powder extinguisher
Answer: foam extinguisher
43. Some books are arranged in a row. There are 5 books between the 21st book from the right and the 28th book from the left. The total number of books is more than 42. Find the total number of books.
• 44
• 49
• 52
• 54
Answer: 54
44. In a certain code language ‘pick and choose’ is written as ‘ko ho po’ fare FIAT I Pick ‘up and come’ dhe ‘to no ko po’. So, how will ‘pick’ be written in that language?
• po
• Either ko or po
• ko
• Cannot be determined
Answer: Either ko or po
45. Determine the value of electric current (in amperes) flowing through a resistance of 9 ohms, when the potential difference between the ends of the resistance is 36 volts.
• 8
• 7
• 4
• 3
Answer: 4
46. If the magnetic susceptibility of any substance is less than zero, then that substance is………….?
• Paramagnetic
• Ferromagnetic
• Diamagnetic
• Ferrimagnetic
Answer: Diamagnetic
47. Which of the following is the reciprocal of resistivity?
• Relativity
• Susceptibility
• Conductivity
• Permittivity
Answer: Conductivity
48. What happens in loadless rotational loss in an electrical machine?
• Friction and air friction losses
• Stator core friction and air friction losses
• Rotator core, friction and air friction losses
• Weightless core, friction and air friction losses
Answer : Weightless core, friction and air friction losses
49. At what coupling angle is maximum power generated in a synchronous motor?
• 180°
• 90°
• 60°
• 30°
Answer : 90°
50. In a three-phase controlled bridge rectifier, each thyristor conducts for a maximum interval of …….
• 60 degree
• 180 degree
• 120 degree
• 90 degree
Answer : 120 degree
51. What will be the reactive power (in VAr) of a circuit with power factor 0.5, when the apparent power of the circuit is 80 VA –
• 48
• 69.6
• 78.3
• 84
Answer : 69.6
52. In a dc motor, the flux density under the leading pole will –
• Increase
• Decrease
• Increase or Decrease
• None of these
Answer: Increase
53. Which of the following is a silk textile producing centre in Bihar?
• Motipur
• Bajari
• Bhagalpur
• Dalmianagar
Answer: Bhagalpur
54. Who was awarded the Jnanpith Award for the year 2017?
• Sankha Ghosh
• Krishna Sobti
• Raghubar Chaudhary
• Bhalchandra Nemde
Answer: Krishna Sobti
55. Which of the following is the wrong antonym pair?
• Entry-Investment
• Silent-talkative
• Past-Future
• Reward-Disrespect
Answer : Entry-Investment
56. Find the missing term in the series given below 2, 8, 3, 27, 4, 64,5,?
• 125
• 100
• 120
• 25
Answer : 125
57. What happens due to iron loss in a D.C. machine?
• Heating in the core
• Decrease in capacity
• Increase in the temperature of ventilation air
• All of the above
Answer: All of the above
58. Z is the maternal uncle of Y, X is the maternal grandfather of Z, S is the grandson of X. What is the relation with Y?
• Uncle
• Brother
• Maternal grandfather
• Cousin
Answer: Uncle
59. Which sentence is in passive voice?
• I know him
• We have missed the train
• A prize was won by me
• I won a prize
Answer : A prize was won by me
60. Which of the following statements is incorrect?
• Resistance of metals increases with increase in temperature
• Resistance of thermistor falls with increase in temperature
• For biomedical equipment systems, amplifiers having low CMRR are suitable
• Resistance of photoresist increases with decrease in light intensity
Answer : For biomedical equipment systems, amplifiers having low CMRR are suitable
61. View menu of Microsoft Excel does not have:
• Full screen
• Zoom
• Split
• Text to column
Answer : Text to column
62. Fill in the blanks with correct preposition. Child marriage is a great hindrance progress
• to
• in
• of
• for
Answer : to
63. In case of CE amplifier, the output voltage waveform –
• is in phase with the input voltage waveform
• is always 90° lagging the input
voltage waveform • is always 180° lagging the input voltage waveform
• is always 90° lagging the output voltage waveform
Answer : always 180° lagging the input voltage waveform
64. The greatest common divisor of 123456789 and 987654321 is?
• 5
• 3
• 9
• More than 9
Answer : 9
65. In which logic gate, the output will be HIGH when all the inputs are LOW.
• AND
• OR
• NOR & NAND
• NAND
Answer: NOR & NAND
66. In a certain code language, ‘6’ is coded as ‘T’, ‘8’ is coded as ‘I’, ‘3’ is coded as ‘N’, ‘9’ is coded as ‘Q’, ‘2’ is coded as ‘Y’, ‘5’ is coded as ‘D’, and ‘7’ is coded as ‘R’. So, what will be the un-coded form of ‘DRINTQ’?
• 576839
• 578369
• 573869
• 578396
Answer : 578369
67. Where is compensated winding applied?
• Pole foot
• Amateur core
• Main region
• All options are correct
Answer : Pole foot
68. CGI means?
• Common Graphics Interface
• Common Gateway Interchange
• Common Gateway Interface
• Computer Gateway Interface
Answer: Common Gateway Interface
69. In a thermal power plant, which of the following heats the feed water going to the boiler by extracting heat from the flue gases?
• Super heater
• Economiser
• Preheater
• Turbine
Answer: Economiser
70. The meaning of the idiom ‘to prick the eye’ is?
• To look closely
• To strike the mind
• Not being able to bear
• To have a strong desire to obtain something
Answer: To strike the mind
71. Determine the time period (in milli-seconds) of a sinusoidal wave when the frequency of the wave is 60 Hz?
• 16.67
• 18.26
• 20.24
• 26
Answer : 16.67
72. Which of the following is the range of efficiency of a welding motor generator?
• 90 to 95%
• 80 to 90%
• 50 to 60%
• 30 to 45%
Answer : 50 to 60%
73. Australia defeated which country to win the 27th Sultan Azlan Shah Cup –
• Argentina
• England
• India
• Malaysia
Answer: England
74. What is the flat copper strip in large machines called?
• Windings
• Rings
• Riser
• Any of these
Answer: Riser
75. A synchronous generator produces reactive power when operating under which condition?
• Zero power factor
• Lagging power factor
• Leading power factor
• Any of these
Answer: Lagging power factor
76. A shift register can be used for?
• Parallel to series conversion
• Series to parallel conversion
• Digital time delay
• All of the above
Answer: All of the above
77. Find the value of load impedance (in ohms) for maximum power transfer from source to load when the source impedance of the circuit is 6 + j5 ohms.
• 6 – j5
• 5 – j6
• 6 + j5
• 5 + j6
Answer : 6 – j5
78. Tatsam form of Gabhinn is?
• Garbhinn
• Ganesh
• Garbin
• Garbhann
Answer : Garbhinn
79. Stepped core is used in transformers to reduce?
• Volume of iron
• Volume of copper
• Iron loss
• Reluctance of core
Answer: Volume of copper
80. The first Gupta ruler who issued coins was?
• Shrigupta
• Chandragupta I
• Samudragupta
• Chandragupta II
Answer: Chandragupta I
81. What is e-commerce?
• Buying and selling computer products
• Buying and selling products and services which are not available in shops
• Buying and selling international goods
• Buying and selling products and services with the help of internet
Answer: Buying and selling products and services with the help of internet
82. A circuit with power factor of 0.8 consumes 40 watts of power. What will be the value of reactive power of the circuit (in VAR)?
• 20
• 40
• 30
• 10
Answer: 30
83. Which is the world’s largest coffee producing country?
• Argentina
• Peru
• India
• Brazil
Answer: Brazil
84. Which of the following will require minimum level of illumination?
• Displays
• Fine engraving
• Railway platform
• Auditoriums
Answer: Railway platform
85. A hardware device that is capable of executing a sequence of instructions is called ………..
• CPU
• ALU
• Processor
• None of these
Answer : Processor
86. Which one of the following is not a feature of MI type instruments?
• Can be used in both A.C. and D.C. circuits
• Moving element is a small piece of soft iron
• Equally divided scale
• Low cost of instruments as compared to moving coil instruments
Answer : Equally divided scale
87. What will be the instantaneous value (in amperes) of an alternating current i(t) = 20 sin(13t-20)A, when the value of t is 5?
• 0
• 10
• 14.14
• 17.32
Answer : 14.14
88. ……. A 3-phase, 4 wire system is generally used on
• Primary transmission
• Secondary transmission
• Primary distribution
• Secondary distribution
Answer: Secondary distribution
89. Which circuit provides the best stability of operating point?
• Base resistor bias
• Collector re-input bias
• Potential-divider bias
• None of these
Answer: Collector re-input bias
90. In suburban services as compared to urban services ……….
• Coastal time is more
• Coastal time and free run time are equal
• Coastal time is less but free run time is more
• Coastal time is less
Answer : Coastal time is more
91. How much power (in watts) will be dissipated by a 10 ohm resistance, when the electric current through the resistor is 3 amperes?
• 30
• 40
• 60
• 90
Answer : 90
92. In the following question, the descriptive sentence is aptly described by just one word. Select the choice which give the meaning most appropriately. One who talks in his sleep:
• Somniloquist
• Somnivocalist
• Somnambulist
• Somnalesist
Answer : Somniloquist
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