2. A tidal power plant is being installed in India near
Correct : B. Gulf of Cambay
3. In case the height of transmission towers is increased
Correct : D. the line capacitance will decrease but line inductance will remain unaltered
4. Parr's classification of coal is based on
Correct : A. proximate analysis
5. Water is fed to the boiler at
Correct : B. At pressure more than the steam pressure
6. Which of the following location is not associated with super-thermal power plant?
Correct : B. Badarpur
7. Phase, advancers for power factor improvement are generally used for
Correct : A. Induction motors below 200 HP
8. The pressure of steam used in modern thermal power plants is upto
Correct : E. 170 kg/cm2
9. In transmission system a feeder feeds power to
Correct : C. distributors
10. The average pH of the normal rainfall is usually
Correct : B. slightly acidic
11. Sodium sulphur batteries use electrolyte consisting of
Correct : B. dilute sulphuric acid
12. Corona generally results in
Correct : D. All of the above
13. Natural gas is obtained
Correct : C. from earth's surface usually along with crude
14. Which of the following cannot be the prime-mover for a generator of 120 MW capacity?
Correct : D. Diesel engine
15. Which of the following will need highest level of illumination?
Correct : E. Proof reading
16. Quad is a mesure of
Correct : D. energy
17. A Buchholz relay is used on
Correct : A. Transformer
18. The supply and distribution of electrical energy in states is controlled by
Correct : B. Electricity Board
19. Pyrhelicometer measures
Correct : A. intensity of direct solar radiation
20. In any transmission line, the dimensions of constants B and C are
Correct : B. ohm and mho
21. By increasing sag in the suspended transmission line
Correct : A. Tension in the line decreases
22. As compared to copper, the conductivity of aluminium is nearly
Correct : B. 60%
23. The equipment used for pulverising is known as
Correct : B. Ball mill
24. The dimensions of generalised constants A and D are
Correct : D. Both are dimensionless
25. In a fuel cell positive electrode is of
Correct : A. oxygen
26. In high voltage transmission lines the top most conductor is
Correct : D. Earth conductor
27. A sodium graphite reactor uses
Correct : B. sodium as coolant and graphite as moderator
28. The material used for insulation on the cable is
Correct : D. Any of the above
29. Ekman spiral is an idealized mathematical description of
Correct : B. wind distribution in the planetary boundary layer
30. In order to reduce skin effect at UHF
Correct : C. copper tubes with silver plating are used
31. Certain metals become super-conducting when cooled below
Correct : B. transition temperature
32. Which of the following material has high scrap value as compared to initial cost?
Correct : A. Copper
33. Which plant has least pollution problem?
Correct : D. Hydro-electric power plant
34. In which power plant chimney is not needed?
Correct : C. Hydro-electric power plant
35. Attemperation is
Correct : D. the reduction of steam temperature
36. In ACSR conductors
Correct : C. no insulation is used between aluminium and steel
37. The standard frequency of electric power supply in India is
Correct : B. 50 Hz
38. HBJ pipeline orginates from
Correct : D. Gujarat and ends in Uttar Pradesh
39. Which authority is directly concerned with generation and distribution of electricity?
Correct : D. State Electricity Boards
40. An air preheater is an essential part of which of the following power plant?
Correct : D. Steam power plant
41. The compressor used in gas turbine is usually
Correct : B. Multistage axial flow compressor
42. Hot template curves are the plot of
Correct : A. conductor sags and span lengths
43. In a steam locomotive the power is generated in
Correct : A. Double acting non-condensing steam engine
44. Which of the following domestic utility item consumes least power?
Correct : C. Electric shaver
45. Tidal energy source mainly makes use of
Correct : B. potential energy of water
46. The carbon percentage in diesel oil is nearly
Correct : D. 86%
47. Gas turbines are widely used in
Correct : C. Aircraft
48. The alternators for a steam power plant usually run at
Correct : B. 3000 rpm
49. When a conductor is suspended between two supports at the same level it taken the shape of
Correct : E. Catenary
50. A 660 V cable is known as
Correct : E. Low tension cable
51. Which of the following public sector unit is engaged in the manufacture of thermal power plants?
Correct : C. Bharat Heavy Electricals Ltd
52. In a long transmission line, the effect of
Correct : D. resistance, capacitance and inductance is taken into account
53. Which of the following power plant will give least running cost of the production of electrical power?
Correct : B. Nuclear power plant
54. In a steam turbine cycle the lowest pressure occurs in
Correct : C. Condenser
55. If K be the volume of conductor for two wire dc system, then for the same voltage the volume of conductor for 3 wire dc system for supplying the same load will be
Correct : E. 0.3125 K
56. One BTU is the amount of energy required to raise the temperature of
Correct : D. One pound of water through 1?F
57. Which of the following material has the best conductivity?
Correct : D. Copper
58. The voltage of a 2 wire de system is raised from 200 V to 400 V. For the same power transmitted over the same distance and for the same power loss, the saving in conductor copper will be
Correct : E. 75%
59. The capacity of generators being installed in super-thermal power plant is
Correct : D. 500 MW
60. Which of the following power plant can be installed within the shortest possible time?
Correct : B. Diesel engine power plant
61. Which of the following is not the standard rating of GLS lamps in India?
Correct : A. 50 W
62. Which of the following place is associated with thermal power plants?
Correct : D. Obra
63. In a medium transmission line the effect of
Correct : C. resistance, capacitance and inductance is taken into account
64. The calorific value of natural gas is expected to be around
Correct : D. 500 kcal/m3
65. The name DVC is associated with which type of power generation?
Correct : B. Hydro-electric
66. Which of the following gas is sometimes filled in filament lamps?
Correct : A. Argon
67. The heating value of coal largely depends on
Correct : B. Carbon content
68. Pulverised coal is
Correct : D. Coal broken into fine pieces
69. The calorific value of diesel oil is expected to be around
Correct : D. 11000 kcal/kg
70. The highest voltage at which the power is transmitted in India is
Correct : A. 400 kV
71. In any transmission line, which two generalised constants are equal?
Correct : E. A and D
72. The power factor of a 3 phase induction motor near full load is expected to be around
Correct : A. 0.8 lagging
73. If an engine has spark plugs, it can be safely concluded that it is
Correct : E. not a diesel engine
74. The work of installation and commissioning of power plants in India is generally undertaken by
Correct : A. NTPC Ltd.
75. When the reactive component is small
Correct : A. the phase angle will be small and p.f. will be high
76. The specific gravity of copper is
Correct : B. 5.9
77. A pin type insulator is generally used upto
Correct : D. 33 kV
78. A 66 kV transmission line carrying power to a distance of 120 kilometre will be termed as
Correct : C. Medium transmission line
79. Maximum horse power of a steam locomotive is
Correct : C. 1500
80. Pressure cables are used for
Correct : B. Higher voltages
81. Diesel engine fuels are rated by
Correct : A. Cetane number
82. The wavelength of green colour is nearly
Correct : B. 5500 A
83. The average load factor of thermal power plants in India is
Correct : B. 50 to 60%
84. A ship is powered by
Correct : E. Steam turbines or diesel engines
85. A gas turbine works on
Correct : A. Brayton cycle
86. The live storage of coal in power plant means
Correct : E. Storage of coal sufficient to meet hour demand for the plant.
87. The maximum number of generators in a power plant must be
Correct : C. Two
88. The area under the load curve represents
Correct : D. Energy consumed
89. Out of the following which one is not a unconventional source of energy?
Correct : D. Nuclear energy
90. In which of the following state manufacturing unit of M/S Bharat Heavy Electricals Ltd. Is not located?
Correct : A. Rajasthan
91. The value of an equipment at the end of its useful life is known as
Correct : A. Scrap value
92. Which of the following will need the lower level of illumination?
Correct : C. Railway platform
93. The calorific value of coal gas is expected to be around
Correct : D. 7500 kcal/m3
94. A jet aircraft is powered by
Correct : A. Gas turbine
95. One calorie is the same as
Correct : A. 4.18 joules
96. Death is almost certain when the current through human body is
Correct : A. 100 milli-amperes
97. Standby losses are least in case of
Correct : D. Hydro-electric power plant
98. Approximately how many kg of air are required for the combustion of one kg of diesel oil?
Correct : D. 15 kg
99. Which of the following variety of coal will have highest ash content
Correct : D. Lignite
100. Highly skilled manpower is needed for the maintendance of which of the following power plants?