Hpssc Post code-503 Electrical Engg MCQ

1. ‘Nehru kund’ is located in

2. “Gyas peak’ is located in

3. Who said about ‘Spiti’ that, this place is no place for men ?

4. Where is “Bhunda’ held ?

5. Netaji Subhash Chandra Bose spent number of months at

6. There is a large fish farm at

7. The Suketi Fossil Park is in

8. The book ‘Kinner Desh’ was written by

9. The river Ravi rises from

10. The only Sainik School in H.P. is at

11. Guru Govind Singh never visited

12. Golu was a famous painter of

13. Heat sinks are used in power amplifier circuits

14. Photovoltaic cell is an/a ____________ transducer.

15. A synchroscope is used to _______ an alternator with bus bar

16. The speed error of the energy meter is corrected by adjusting the position of

17. Electrostatic voltmeters are used to measure voltage across ________.

18. An energy meter utilizes ________ damping.

19. The direct current system employed for tramways operates on

20. Ammonia is preferred as a refrigerant in large commercial installation because

21. Chemical equivalent of a substance is defined as

22. In indirect heating method, maximum heat transfer takes place by

23. A solid angle is expressed in terms of

24. Which motor is used for blowers ?

25. In a single phase repulsion motor, torque is developed on the rotor when Brush axis is fixed

26. Distribution factor for a winding having 3 slots/pole phase and slot angle of 20° is

27. Armature reaction in an electrical machine is the effect of

28. The speed regulation of a synchronous motor is

29. The speed of revolving field for a 50 Hz, 8 pole machine will be

30. The phenomenon of squirrel cage motors sometimes showing a tendency to run at a very low speed is known as

31. The slip of 400V, 3-phase, 4 pole induction motor when rotating at 1440 rpm is

32. A transformer when supplying a load maintained 11 kV across load terminals. When the load was switched off, the terminal voltage became 11550 V. What is the voltage regulation at this load ?

33. The emf induced in the secondary winding of a 50 Hz single-phase transformer having 1000 turns on its secondary is 222 V. The maximum flux density in the core is 0.1 Wb/m2. The cross-sectional area of the core is

34. The maximum permissible operating temperature of class-E insulating material is

35. A three-phase load is said to be a balanced load, if all the three phases have the same

36. The power dissipated in the pure capacitance of an R-C series circuit will be

37. If frequency of power supply is 60 Hz, the time period of one cycle will be

38. A 1 Henry inductance carrying a current of 3A will store energy of

39. M.M.F. is analogous to

40. The electrolyte used in Nickel-Iron battery is

41. When a source delivers maximum power to the load, the efficiency will be

42. An oven takes 16A at 220V. It is desired to reduce the current to 12A. The value of resistance which must be connected in series will be

43. A memory in which the contents get erased when power failure occurs is

44. A memory has 16-bit address bus. The number of locations in this memory are

45. A ring-counter consists of five FLIP-FLOPs will have

46. A universal register

47. The octal equivalent of the binary number 11010111 is

48. The radix of hexadecimal number system is

49. HTL is a modified form of

50. The maximum number of 3-input gates in a 16-pin IC will be

51. A gate is enabled when its enable input is at logic1. The gate is

52. The attenuator in a signal generator is used to

53. To generate 1MHz signal, the most suitable circuit is

54. The negative feedback in an amplifier

55. One of the effects of negative feedback in amplifier is to

56. In an amplifier, the coupling capacitors are used

57. The input and output signals of a Common Emitter Amplifier are

58. Avalanche breakdown in a semiconductor diode occurs when

59. An ideal current source is one whose internal resistance is

60. An ac voltage can be converted into a unidirectional voltage by using

61. Antonym of the word ‘Recoup’ is

62. Synonym of the word ‘Abrupt’ is

63. He invited me __________ tea

64. Pointing towards Jayesh, Radha said, “His sister is the only daughter of my mother.” How is Radha related to Jayesh ?

65. According to English alphabet as ‘BC’ is related to ‘YX’ in the same way ‘EF’ is related to whom ?

66. Fundamental rights guaranteed in the Indian Constitution can be suspended only by

67. Who among the following was the Finance Minister of India in the interim Government during 1946-1947 ?

68. Disputes between states come to the Supreme Court under

69. Which among the following is the best conductor of electricity ?

70. The audible range for human ear is

71. The largest producer of ginger in India is

72. The highest peak of the Nilgiri Hills is known as

73. Which of the following rivers does not form a rift-valley ?

74. Saffron for commercial use is obtained from

75. Chlorofluorocarbons deplete the

76. The concept of the Eight-fold path forms the theme of

77. Who spoke the words “Swaraj is my birthright and I shall have it” ?

78. Tansen, the famous Mughal musician, was the disciple of

79. Parwanoo Industrial Area is famous for

80. ‘HIMURJA’ works in the field of

81. Which of the following is known for monolithic rock cut architecture ?

82. The book ‘Kinner Desh’ is written by

83. ‘Baba Badbhag Singh’ fair is held in which district of Himachal Pradesh ?

84. The Catchline of Jan-Dhan Yojana is

85. A thermocouple is a __________ type transducer

86. In amplitude modulation

87. In an FM broadcast in VHF band, channel width is __________

88. In RC-phase shift oscillator circuits

89. A Colpitts oscillator uses

90. After firing an SCR, the gating pulse is removed. The current in the SCR will

91. A diac is equivalent to a

92. FET have similar properties to

93. If two stages of a cascaded amplifier have decibel gains of 60 & 30, then overall gain is ________ dB.

94. Silicon is invariably used in the manufacturer of junction photo diodes because

95. The main use of a class-c amplifier is

96. CE amplifier is characterized by

97. A d.c. series motor should always be started with load because

98. In a d.c. machine, inter-poles are used to

99. The induced e.m.f. in the armature of a lap-wound four pole d.c. machine having 100 armature conductors rotating at 600 rpm with 1 Wb flux per pole is

100. The commutator segments of a d.c. machine are made up of

101. A 100 kVA, 1100/400, 50 Hz single phase transformer has 100 turns on the secondary winding. The number of turns on its primary will be

102. Maximum efficiency of a transformer occurs when

103. For a three phase induction motor having rotor circuit resistance of 6 ,maximum torque occurs at a slip of 0.6. The value of standstill rotor circuit reactance is

104. When a 400 V, 50 Hz, 6 pole induction motor is rotating at 960 rpm on no load, its slip is

105. The speed regulation of a synchronous motor is

106. In alternator damper windings are used to

107. A 4-pole, 50 Hz synchronous machine runs at

108. In a split phase capacitor start induction motor, a time phase difference between the currents in the main and auxiliary winding is achieved by

109. An electric pyrometer is an instrument used to measure _________.

110. If current through the operating coil of moving iron instruments is doubled,the operating force becomes _________.

111. In general, fluid friction damping is not employed in indicating instruments although one can find its use in _________.

112. Three identical resistances connected in star consume 400 W. If the resistances are connected in delta across the same supply, the power consumed will be _________

113. For the same rating, the size of a 3-phase motor will be _________ single phase motor

114. The torque on the rotor of a 3-phase motor is more constant than that of a single-phase motor because _________

115. In a parallel a.c. circuit, power loss is due to _________.

116. In an L-C-R series circuit the capacitance is changed from C to 4 C. For the same resonant frequency, the inductance should be changed from L to

117. The commercial lead-acid cell has 15 plates. The number of negative plates will be _________

118. The specific gravity of the electrolyte of a lead-acid cell is about 1.25. The cell is about _________ charged.

119. Mutual inductance between two coils is 4 H. If current in one coil changes at the rate of 2A/second, then e.m.f. induced in other coil is _________

120. If a co-efficient of coupling between two coils is increased, mutual inductance between the coils

121. A current of 2A through a coil sets up flux linkages of

122. The e.m.f. induced in a _________ is statically induced e.m.f.

123. The magnetic material used for ________ should have a large hysteresis loop

124. Hysteresis is the phenomenon of _________ in a magnetic circuit.

125. M.M.F. in a magnetic circuit corresponds to ________ in an electric circuit

126. The SI unit of reluctance is

127. The reluctance of a magnetic circuit varies as ________

128. When the relative permeability of a material is slightly more than 1, it is called a

129. Iron is ferromagnetic

130. Magnetic flux passes more readily through

131. Magnetic flux density is a

132. The magnetic material used in permanent magnets is

133. Which of the following does not change when glass slab is introduced between the plates of charged parallel plate capacitor ?

134. A capacitor of 20 F charged to 500 V is connected in parallel with another capacitor of 10 F capacitance and charged to 200 V. The common potential is

The capacitor of capacitances C1 & C2 are connected in parallel. A charge Q given to them is shared. The ratio of charges Q1
/Q2
is

136. The capacitance of a parallel-plate capacitor depends upon

137. A soap bubble is given a negative charge. Its radius

138. The potential at a point due to charge is 9 V. If the distance is increased three times, the potential at a point will be

139. When relative permittivity of the medium is increased, the force between two charges placed at a given distance apart

140. The force between two electrons separated by a distance r varies as

141. A fuse is made of

142. You are given three bulbs of 25 W, 40 W and 60 W. Which of them has the lowest resistance ?

143. How much electrical energy in kWh is consumed in operating ten 50 W bulbs for 10 hours in a day in a month of 30 days ?

What percentage of the maximum power is delivered to a load if load
resistance is 10 times greater than the Thevenin resistance of the source to which it is connected ?

145. A linear circuit is one whose parameters (e.g. resistance etc.)

146. Two resistances are joined in parallel whose resultant resistance is 6/5 ohm One of the resistance wire is broken and the effective resistance becomes 2 ohms, then the resistance of the wire that got broken is

147. An electric fan and a heater are marked 100 W, 220 V & 1000 W, 220 V respectively. The resistance of heater is

148. A primary cell has an e.m.f. of 1.5 V. When short-circuited, it gives a current of 3A. The internal resistance of the cell is

149. Eureka has temperature co-efficient of resistance

150. A wire has a resistance of 10 . It is stretched by one-tenth of its original length. Then its resistance will be

151. The resistance of wire of uniform diameterd and length L is R. The resistance of another wire of same material but diameter 2d and length 4 L will be

152. Correct spelling is