Tradesman ( Electrical)-Technical Education - Question Paper and Answer Key

Tradesman ( Electrical)-Technical Education

Date of Test : 18/09/2018
Question Code : 98 2018

1. Who was the main writer who assisted William Logan in the writing the ‘Malabar Manual’ ?
(A) O. Chanthu Menon
(B) A. Ayyappan
(C) V.P. Menon
(D) Itti Achuthan

2. Malabar Manual was first published in __________.
(A) 1889
(B) 1887
(C) 1886
(D) 1880

3. Magna Carta was signed in __________.
(A) 1215
(B) 1342
(C) 1299
(D) 1432

4. Prathyksha Raksha Daiva Sabha was founded by __________.
(A) Poykayil Yohannan
(B) K. Maadhavan
(C) Dr. Palpu
(D) Vagbhatananda

5. Who was known as Kerala Lincolon ?
(A) EMS Nambudirippad
(B) Pandit Karuppan
(C) A.K. Gopalan
(D) K.R. Gouri Amma

6. Atmavidya Kahalam was written by __________ in 1929.
(A) Vagbhatananda
(B) Vakkom Abdul Khadar
(C) Kalidasan
(D) Swami Sivayogi

7. The famous Kizhariyur bomb case was in __________.
(A) 1857
(B) 1940
(C) 1945
(D) 1942

8. Who started servants of Mary Immaculate ?
(A) K. Karuppan
(B) Chavara Achan
(C) K. Krishnan
(D) Makthi Thangal

9. The Slavery abolished in America was __________.
(A) 1900
(B) 1864
(C) 1865
(D) 1765

10. Right to Health is mentioned in __________ of U.N. Declaration Human Rights.
(A) Article 8
(B) Article 20
(C) Article 25
(D) None of these

11. Kallumala Samara was broken out in 1915 in the __________ district of Kerala.
(A) Thiruvananthapuram
(B) Kozhikode
(C) Alappuzha
(D) Kollam

12. “Liberty, Equality and Fraternity” is the slogan of __________ Revolution.
(A) American
(B) French
(C) Chinese
(D) None of these

13. The most prominent work on Partition is Freedom at Midnight was written by __________.
(A) Annie Besant
(B) Dominigue Lapirre
(C) Larry Augustine
(D) Abdul Kalam

14. At the time of Indian Independence Hyderabad was ruled by __________.
(A) Ali Khan
(B) Mohammed
(C) Abdul Razak
(D) None of these

15. Who was the murderer of Canolly, the District Collector of Malabar ?
(A) Pokker Haji
(B) Kunhali
(C) Haider
(D) Vadakkeveettil Mohammed

16. The Dutch East India Company started in __________.
(A) 1600
(B) 1602
(C) 1605
(D) 1700

17. The famous Aruvippuramprathishta was the challenge against the Brahmin by __________.
(A) Nanu Asan
(B) Guru Govind
(C) K. Karuppan
(D) Palpu

18. Hunter Commission was appointed in __________.
(A) 1880
(B) 1881
(C) 1884
(D) 1882

19. Bharath Matha Society was founded by __________.
(A) J.M. Chatterjee
(B) Chandrashekhar Azad
(C) N. Bhattachari
(D) None of these

20. Who had written “India’s struggle for Independence” ?
(A) Bipin Chandra
(B) Sumit Sarkar
(C) Ray Choudhar
(D) A.R. Desai

21. Unit of Electrical energy is __________.
(A) Ampere Hour
(B) Kilowatt Hour
(C) Kilowatt
(D) Kilovolt Ampere

22. Magnitude of electrical shock on a human body depends upon __________.
(A) Current flow through the body
(B) Path of electric current through the body
(C) Duration of electric shock
(D) All of the above

23. One of the following components is a passive device __________.
(A) Field effect transistor
(B) Silicon controlled rectifier
(C) Air core inductor
(D) Zener diode

24. Armouring is provided in the underground cable to safeguard against __________.
(A) Mechanical injury
(B) Moisture entry
(C) White ant attack
(D) Brusting of failure

25. The main switch is used in single phase supply is to be provided with __________.
(A) Fuse in both line and neutral
(B) A link in the line and a fuse in the neutral
(C) A fuse in the line and a link in the neutral
(D) None of these

26. Which of the following units is the correct one for reactive power ?
(A) Kilovolt Ampere
(B) Kilowatt
(C) Megawatt
(D) Kilovolt Ampere reactive

27. The type of insulator used for holding high transmission overhead conductor on straight
running of poles __________.
(A) Post insulator
(B) Pin insulator
(C) Stay insulator
(D) Shackle insulator

28. A water pump lifts less water than earlier, what could be the reason for this fault ?
(A) Impiller damaged
(B) Level of water in pump is too high
(C) Pump running in reverse direction
(D) Motor running fast

29. In an energy meter the holes of the aluminium disc helps to __________.
(A) Prevent creaping error 
(B) Reduce the resistance
(C) Reduce the friction
(D) Reduce the weight of disc

30. Earth leakage circuit breaker is used to disconnect the supply from __________.
(A) Short circuit
(B) Ground fault
(C) Open circuit
(D) Overload

31. In a transformer, the chemical contained inside the Breather is __________.
(A) Mineral oil
(B) Salt
(C) Silica gel 
(D) Water

32. The device which can be used as switch as well as protective device is __________.
(A) Double pole Iron clad switch
(B) Intermediate switch
(C) Earth leakage circuit breaker
(D) Miniature circuit breaker

33. Size of hammer is specified by __________.
(A) Length of hammer
(B) Diameter of the phase
(C) Height of the head
(D) Weight of the hammer

34. Gravity controlled instrument has to be kept in __________.
(A) Vertical position 
(B) Horizontal position
(C) Inclined position
(D) Any position

35. A sodium vapour lamp gives which colour of light ?
(A) Green colour
(B) White colour
(C) Yellow colour 
(D) Red colour

36. High pressure mercury vapour lamp has three pin bayonet cap lamp holder. This is done for
(A) To make a three phase connection
(B) Prevent wrong connection
(C) To earth the lamp
(D) None of the above

37. A choke is generally used in series with fluorescent tube circuit to __________.
(A) Improve the power factor
(B) Prevent flickering
(C) To make high voltage for conduction
(D) Suppress radio interference

38. Three phase distribution transformer are usually connected in __________.
(A) Delta/Delta
(B) Star/Star
(C) Star/Delta
(D) Delta/Star

39. Conductivity of aluminium is __________.
(A) Sixty percent to that of copper 
(B) Forty percent to that of copper
(C) Eighty percent to that of copper
(D) Fifty percent to that of copper

40. The flux per unit area of material is known as __________.
(A) Current density
(B) Flux density
(C) Magnetic lines of force
(D) Electromotive force

41. Which lamp has more resistance with same applied voltage ?
(A) Forty watts
(B) Hundred watts
(C) Sixty watts
(D) Fifteen watts

42. Tool used for cutting, twisting or holding of wires or cables for terminations __________.
(A) Insulated combination plier 
(B) Insulated side cutting plier
(C) Insulated round nose plier
(D) Insulated flat nose plier

43. Alternating current is converted into direct current by __________.
(A) Alternator
(B) Motor
(C) Rectifier 
(D) Transformer

44. Buchholz relay is generally used for the protection of __________.
(A) Transmission line
(B) Transformer
(C) Alternator
(D) Generator

45. Which of the following is conventional source of energy ?
(A) Coal 
(B) Solar
(C) Small Hydro
(D) Wind

46. Advantage of Hydro electric power station is __________.
(A) Low cost
(B) Free from pollution
(C) No fuel transportation problem
(D) All of the above

47. Which of the following system electric power maybe transmitted ?
(A) Overhead system
(B) Underground system
(C) Overhead and underground system
(D) None of these

48. The fuel used in nuclear generating power plant is __________.
(A) Crude oil
(B) Isotopes of Uranium
(C) Liquified hydrogen
(D) Methane

49. What is the basic three electrical quantities ?
(A) Resistance, Capacitance, Inductance
(B) Power, Voltage, Conductance
(C) Voltage, Current, Resistance
(D) Current, Reactance, Inductance

50. Value of short circuit current will flow in the circuit is __________.
(A) Zero
(B) Very low
(C) Normal
(D) Infinite

51. Motor used in household refrigerator is __________.
(A) D.C. Series motor
(B) Single phase induction motor
(C) D.C. Shunt motor
(D) Universal motor

52. Which motor would you select for vaccum cleaner ?
(A) Universal motor 
(B) Repulsion motor
(C) Hysterisis motor
(D) None of these

53. The damper winding in a synchronous motor is generally used __________.
(A) To provide starting torque only
(B) To reduce noise level
(C) To reduce eddy current
(D) To prevent hunting and provide the starting torque

54. An Auto transformer which has only one winding may be used as __________.
(A) Step-up transformer
(B) Step-down transformer
(C) Step-up and Step-down transformer
(D) None of these

55. The unit of solid angle is a __________.
(A) Lumen
(B) Radian 
(C) Steradian
(D) Candela

56. Full form of MCCB is __________.
(A) Moulded Case Circuit Breaker
(B) Moulded Case Current Breaker
(C) Miniature Current Circuit Breaker
(D) Minimum Current Circuit Breaker

57. The star delta starter is used in __________.
(A) Flour mills
(B) Pumps
(C) Machine tools
(D) All of these

58. Motor used in ceiling fan is __________.
(A) Split phase motor
(B) Capacitor start motor
(C) A.C. series motor
(D) Repulsion motor

59. Rotor resistance starter used to which of the following motors ?
(A) Slip ring motor
(B) Heavy duty squirrel cage motor
(C) Medium duty squirrel cage motor
(D) Double cage motor

60. The thickness of insulation provided in the conductor in cable depends upon the factor is
(A) Resistivity of the conductor
(B) Current to be carried
(C) Operating voltage
(D) Power factor

61. The structure of pin type insulator is wavy. It is done to increase __________.
(A) Mechanical strength
(B) Puncture strength
(C) Flash over voltage 
(D) Thermal strength

62. Carbon arc lamp are commonly used in __________.
(A) Cinema projectors 
(B) Domestic lighting
(C) Street lighting
(D) Photography

63. Which of the following is one not a part of circuit breaker ?
(A) Explosion plot
(B) Conservator
(C) Operating mechanism
(D) Fixed and moving contact

64. The handle of iron box is made up of __________.
(A) Bakelite
(B) Ebonite
(C) Chromium
(D) Bakelite and Ebonite

65. Lumen per watt is the unit of __________.
(A) Light flux
(B) Luminous efficiency
(C) Luminous intensity
(D) Brightness

66. The generating voltage and frequency in India is __________.
(A) 11 kV and 50 Hz 
(B) 11 kV and 60 Hz
(C) 220 kV and 50 Hz
(D) 220 kV and 60 Hz

67. The lamp generally used for lighting purpose is __________.
(A) Carbon filament lamp
(B) Arc lamp
(C) Tungsten filament lamp
(D) All of the above

68. In running condition voltage across tube starter is __________.
(A) 110 V
(B) 180 V
(C) 220 V
(D) Zero

69. Capacitor is used in tube circuit is __________.
(A) To improve the power factor 
(B) To improve the voltage
(C) To safeguard the tube
(D) To give the full light

70. The synchronous speed of an induction motor refers to the speed of the __________.
(A) Rotor
(B) Armature
(C) Speed marked on the name plate
(D) Rotating magnetic field

71. Three phase induction motor started by DOL starter, the short circuit current is protected by
(A) No volt coil
(B) Overload relay
(C) Back off fuse 
(D) Protective earth connection

72. Cables are drawn through the pipe and terminated. The system of wiring is called __________.
(A) PVC casing and caping wire
(B) Conduit wiring
(C) Teak wood batton wiring
(D) Teak wood casing caping wiring

73. As compared to rewirable fuses HRC fuse have __________.
(A) High speed of operation
(B) High rupturing capacity
(C) No ageing effect
(D) Low rupturing capacity

74. The following application D.C. is essential __________.
(A) Electric traction motor 
(B) Electric home appliances
(C) Machine shop motor
(D) Illumination

75. Which of the following does not change in a transformer ?
(A) Current
(B) Voltage
(C) Frequency 
(D) All of these

76. Which winding in a transformer has more number of turns ?
(A) Low voltage winding
(B) High voltage winding
(C) Winding does not depend upon number of turns
(D) None of these

77. In a D.C. machine the number of brushes in lap winding is __________.
(A) Same number of poles 
(B) Double number of poles
(C) Half of the number of poles
(D) Two numbers

78. Compensating windings are used in D.C. generator is __________.
(A) To reduce eddy current by local short circuit
(B) To provide path for the circulation of cooling air
(C) To neutralize the cross magnetic effect of armature reaction
(D) None of these

79. Red colour wire is generally known for __________.
(A) Insulated wire
(B) Earth wire
(C) Neutral wire
(D) Phase wire

80. Stepper motor is __________.
(A) Single phase motor
(B) Two phase motor
(C) Three phase motor
(D) D.C. motor

81. The positive pole of dry cell is made of __________.
(A) Copper
(B) Zinc
(C) Carbon
(D) Mercury

82. The energy of secondary cells are renewed by __________.
(A) Heating it
(B) Passing current through it
(C) Renewing its chemicals
(D) It can’t be renewed at all

83. When cells are connected in parallel, the result is __________.
(A) The current capacity increases 
(B) The current capacity decreases
(C) The EMF capacity increases
(D) The EMF capacity decreases

84. The composition of electrician solder is __________.
(A) Tin-40%, Lead-60%
(B) Tin-50%, Lead-50%
(C) Tin-90%, Lead-10%
(D) Tin-60%, Lead-40%

85. Fire extinguisher used in the event of electric fire is __________.
(A) Dry powder type
(B) Gas cartridge type
(C) Halon type 
(D) Foam type

86. Britania straight joint is used for __________.
(A) Increase the length of the conductor
(B) Increase the resistance of the conductor
(C) Increase the conductivity of the conductor
(D) Increase the mechanical strength of the conductor

87. E.C.E. stands for __________.
(A) Electrovalent Chemical Equilant
(B) Electro Chemical Equilant
(C) Electrolysis Cathode Equilant
(D) Electro Cardio Equilant

88. A current of ten ampere is same as __________.
(A) Ten joule per second
(B) Ten watts per second
(C) Ten volt per second
(D) Ten coulomb per second

89. The power dissipated in a pure capacitor is __________.
(A) Zero
(B) Unity
(C) Proportional to the applied voltage
(D) Proportional to the value of capacitance

90. Which of the following has positive temperature co-efficient ?
(A) Germanium
(B) Aluminium 
(C) Graphite
(D) Rubber

91. I.G.B.T. stands for __________.
(A) Integrated Gate Bidirectional Transistor
(B) Integrated Gate Blocky Transistor
(C) Integrated Gate Bipolar Transistor
(D) Insulated Gate Bipolar Transistor

92. In Fleming’s right hand rule, the fore finger indicates __________.
(A) The direction of induced EMF
(B) The direction of motion of the conductor
(C) The direction of induced current
(D) The direction of magnetic flux

93. Diode is a __________.
(A) Multidirectional device
(B) Unidirectional device
(C) Bidirectional device 
(D) None of these

94. Earth wire or ground wire is made of __________.
(A) Copper
(B) Iron
(C) Aluminium
(D) Galvanized steel

95. Which tool is used to transfer measurement to the inside caliper ?
(A) Odd leg caliper
(B) Steel rule
(C) Genny caliper
(D) Divider

96. Chisel used for making rectangular holes in wood is __________.
(A) Firmer Chisel 
(B) Paring Chisel
(C) Mortise Chisel
(D) Beavel - Firmer Chisel

97. Name the element used as impurity to produce N-type semiconductor __________.
(A) Gallium
(B) Boron
(C) Aluminium
(D) Arsenic

98. Which of the following is known as metal rectifier ?
(A) Gas tube diode
(B) Silicon diode
(C) Copper oxide rectifier 
(D) All of the above

99. Type of filter can be used along with a full wave rectifier only is __________.
(A) Series inductor filter 
(B) Pi filter
(C) Resistance Capacitance filter
(D) Choke input LC filter

100. The difference between peak positive and peak negative values in AC is called __________.
(A) Effective value
(B) Peak to Peak value
(C) Maximum value
(D) Average value

No comments:

Post a Comment