14112015

Maximum: 100 marks Time: 1 hour and 15 minutes
1. The value of absolute permittivity is

8.854 x 10-1• HIM 8.854 X 10-1• FIM


40 X 10-7 HIM 40 x 10-7 FIM


2. The equation for find out the energy stored in a coil is

It, LJ2 It,


It, It, LI


3. The Dummy coil used in a DC generator:

To compensate Demagnetizing effect


To compensate cross magnetizing effect


To reduce commutation


For Mechanical balancing


4. The transformer oil used in transformer provides:

Insulation and lubrication Cooling and lubrication


Insulation and cooling Cooling, Insulation and lubrication


5. The critical resistance of a DC shunt generator is the resistance of:

Armature Field


Load None of these


6. The polarity of interpole in the case of a DC generator is

Same as that of main pole ahead Same as that of main pole behind


North pole or South pole None of these


7. Which characteristic of a motor is mainly considered for its industrial application?

Electrical characteristic Power of motor


Speed torque characteristic Over all characteristics


8. Ward -Leonard Method of Speed control is basically

Frequency control method Voltage control method


Current control method Flore control method


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[P.T.O.]
9. The Primary equivalent of Secondary current 12 of a transformer 10 the equivalent circuit of transformer is
K12
12/K K212
10. In a transformer the half load copper loss is 600 W. It's full load copper loss will be

600 Watt 1200 Watt


2400 Watt 300 Watt


11. Condition for maximum efficiency in a transformer is
ROl ROl

VCOS ¢ VI COS¢
XOI X"
R02WI ROI

VICOS¢ VII,COS¢I V,COS ¢I Ii COS¢,
12. When the frequency is doubled, what are the change in eddy current and hysteresis loss:

Hysteresis loss doubled, Eddy current loss doubled


Hysteresis loss doubled, Eddy current loss quadrappled


No change in hysteresis and Eddy current loss


Hysteresis remaining same Eddy current loss reduced to half


13. The most economical connection for small and high voltage transmission is

Star -Delta Delta -Star


Star -Star Delta -Delta


14. A 100 KVA Delta transformer one of the phase of secondary is get out of order. How much load it can carry:

100 KVA 50KVA


67.3 KVA 57.7 KVA


15. The frequency of Rotor Current at the time of starting of an induction Motor is

Supply frequency Slip frequency


l/Slip frequency None of these


16. In two watt meter method of power measurement one Watt meter shows negative reading to get actual reading:
W W1+m W1-m
WI only W2 only
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17. The condition for maximum running torque for a 3 phase induction motor is

R2=SX2 R2= X2


R2 X02 X2 =X02


18. In a vibrating reed type frequency meter the frequency of supply reads through vibration, the vibration of desired frequency depends upon:

Width of the reed Voltage


Type of core Length of the reed


19. In induction type watt meter the copper shading Band used for:

Uniforms flux distribution


Damping purpose


Produce exact 90° phase difference between voltage and current


To reduce stray magnetic error


20. not a standard sweep of ceiling fan.

1250 mm 1400 mm


1050 mm 1200 mm


21. What are the tests conducted to draw the circle diagram of an induction motor?

SC test and OC test


Swim beams test


No load test, short circuit test, stator resistance test


Short circuit test, back to back test


22. The joint used in over head line where considerable tensile strength required is

Brittania joint Straight married joint


Straight running joint Brittania T joint


23. In electricians solder the percentage of tin and lead is

60% lead 40% tin 60% tin 40% lead


40% tin 60% copper 40% zinc 60% tin


24. In an induction motor the phenomenon found that the motor having a tendency to rotate of its normal speed is called:

Cogging Phase locking


Hunting Crowling


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25. In repulsion motor the direction of rotation changed by changing:

Brush position


Field position


Armature position
CD) By inter changing any winding connection



26. The speed of universal motor at no load in about:

3000 rpm 1500 rpm


1000 rpm CD) 20000 rpm


27. As per IE rule the load in each power sub circuit not exceed:

2500 w 3000 w


8000 w CD) 4000 w


28. The socket outlet shall be provide in a bathroom at a height not less than:

1.2 meter 1.5 meter


1.3 meter 2 meter


29. The speed control obtained in domestic mLxer grinder is

Variable voltage control Tapped field control


Flux control method CD) Armature diverter method


30. Plummet is a measuring tool used for:

Horizontal distance Vertical distance


True horiwntal position CD) True vertical position


31-The speed of turbo generator is usually:

300 rpm 1000 rpm


3000 rpm CD) 6000 rpm


32. Among them which is not a slandered size of PVC conduit:

15mm 19mm


32mm CD) 25mm


33. V curve of a three phase synchronous motor is the relation between:

Voltage and current Speed and No of poles


Voltage and No of poles Field current and armature current


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34. The head of high head hydroelectric power plant: 100 m 80 m 200 m 30 m
35. Pumped storage power plant belongs: Base load power plant Peak load power plant Either peak load or base load power plant None of these
36. The coolant used in fast breeder reactor is Cadmium Hard water Water Sodium
37. In long and medium Tran's mlSSlOn sending end voltage this effect is called: Ferranti effect Strobe ­scopic effect line the receiving end voltage Corona effect Skin effect is greater than
38. The type ofinsulator used submarine cable is Rubber Gutta-percha PVC Impregnated paper
39. SL type cables are used up to 66 kv 11 kv 33 kv 132 kv
40. The fusing factor ofHRC fuse is 1.11 1.1 1.21 1.25

41. The correct sequence of the conducting material on the basis of conducting is

Silver, copper, gold, aluminum Silver, gold, copper, aluminum


Silver, copper, aluminum, gold Silver, aluminum, copper, gold


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42. Among them which material having highest die electric strength:

Porcelain Mica


Ebonite Rubber


43. For a human body the ear to ear resistance is about ohm.

100 ohm 500 ohm


1000 ohm 800 ohms


44. The limiting temperature of class a insulator is

1200 C 1050 C


950 C 1350 C


45. Constantum is the alloy contain:

60% copper 40% tin 40% nickel 60% zinc


40% copper 60% Zinc 60% copper 40% nickel


46. The insulating material used for the preparation of cable joint is

Coal tar compound Rubber compound


PVC compound Bitumenes compound


47. The ratio of mmf to reluctance is called:

Flux density Permeability


Flux Magnetic leakage


48. The tumbrule of measurement of insulation resistance of an installation should be not less than:

500 kilo ohm 2 mega ohm


1 mega ohm 50/no of outlets


49. The average voltage drop of a soft graphate brush in a DC generator is

2 volt 1.6 volt


1.1 volt 2.2 volt


50. A magnetic material having large area of hysterisis loop, the material having:

Low permeability high retentivity High permeability low retentivity


Low permeability low retentivity High permeability high retentivity


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51. Flashing means:

Create residual magnetism in a dc generator


Making permanent magnet


Initial charging method of lead acid battery


Failure of insulator in transmission line


52. Theequationforback emfinaDC generatorEb=:
P

0ZN x V+IaRa
600 A



0ZN x P IARa-V


60 A
53. In the case of extra high voltage how much voltage can be permissible in the case of higher voltage regulation:
12% 12.5%
10%
54. Smoothening is the fire exchanging process by which:

Use water for fire extinguishing


Cooling the fire using fire extinguishers


Prevent the supply of fuel to the fire


Isolate the fire from the supply of oxygen


55. The current through the holding coil of a 4 point starter is limited by

Field coil Resistance


Starting resistance Holding coil only


56. The class of measuring instrument that used for industrial and panel board application
IS:

Class 0.1 Class 1


Class 0.5 Classes


57. Among them which method of measurement IS not used for low resistance measurement:

Kelvins bridge Pottentiometer method


Wheat stone bridge Ammeter volt meter method


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58.
The effective value of alternating current is CA) 0.707 I max 0.606 I max CC) 1.1 I max CD) 1.414 I max

59.
The IS code of earthing is CA) IS 3034 IS 0334 CC) IS 3043 CD) IS 3304

60.
The depolarizer used in leclanche cell is CA) Zn20 2 Zn02


CC) Mn20 2 CD) MnO.
61.
When four no of 2v, 4 Ah cells are connected in parallel, what will be it's Ab capacity:

CA) 4Ab 8Ab
CC) 2Ab CD) 16Ab


62.
Boost charging method of battery is used to the battery for charging: CA) Over discharge battery Initial charging of battery CC) For charging a dead cell CD) For normal charging of a battery

63.
For magnetic shielding which material is used: CA) Steel Iron CC) Cobalt CD) Nickel

64.
Mica capacitors are best suited for: CA) Low frequency application

Low captors value required application
CC) As a low pass filter
CD) High frequency application


65.
For a fine hacksaw blade the pitch is CA) 0.8mm 1.0mm CC) 1.4 mm CD) 1.2mm

66.
In a megger the current coil develop torque under the influence of permanent magnet is CA) Anti clockwise direction No torque produced CC) Clockwise direction CD) Thus clockwise or anti clockwise


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67. The Apparent power mentioned in the name plate of a CT in volt ampere at specified power factor is

CT rating Burden


FaultKVA CD) KVA rating


68. The primary and secondary voltage of a Delta -star transformer is out of phase with a degree of:

60° 90°


120° CD) 30°


69. A 6 pole 5 KW, 50 Hz 30 motor having a full load slip of what will be the speed at full load

1200 rpm 1164 rpm


970 rpm CD) 1000 rpm


70. While testing a capacitors with the help of ohm meter the needle deflects towards zero and then goes to infinity the capacitor is

Shorted Leaky


Open Good


71. The instrument used for measuring RPM is

Tacho -meter Tong


Wheat stone Bridge CD) Grouler


72. From the following, which is not characteristic of a capacitor start capacitor run motor?

High starting torque Good starting PF


Noise operation High running Torque


73. Among them which light source having high lumen efficiency:

Hallogen lamp Sodium vapour lamp


LED CD) Mercury vapour lamp


74. BT -136 is a semi conductor device, the device is

Diac Triac


Transistor CD) Zener diode


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75. While using GI wire as earth continuity conductor the minimum Gauge is

lOSWG 8SWG


12SWG 14SWG


76. The voltage not exceeding 250 V is called:

Very low voltage Medium voltage


Low tension Low voltage


77. While erecting a pole to the ground the minimum depth kept bellow the ground level is

1I6th part of the pole 1I5th part of the pole


1I4th part of the pole 1I7th part of the pole


78. In a Gyser which material used in between the outer core and inner tank:

Mica Glass wool


Asbestos Impregnated paper


79. 1 KWH is equal to

868 Galori 36 x 105 Galori


860 Galori 3.6 x 106 Galori


80. rhe mass of an electron is approximately:
111480 part of proton 114180 part of Neutron
114108 part of proton 1/1840 part of proton
81. Kerala sastra puraskar of 2014 was awarded to

G. Madhavan Nair K. P. Gopinadhan


K. Radhakrishnan J.G. Bose


82. Who was the freedom fighter other than Gandhiji, who died in 1948?

Tagore Sarojini Naidu


M.A. Finnah Sardar Patel


83. Red panda is the state animal of which Indian State

Sikkim Meghalaya


Arunachal Pradesh Tripura


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84. Who chairs the joint sitting of the parliament?

President ofIndia Prime Minister


Supreme Court Chief Justice Lok Sabha speaker


85. The term Handicap is related to

Hockey Football


Polo Cricket


86. Sadhujana Paripalana Sangam later popular as

Pulaya Mahajana Sabha Harijana sabha


Pulaya Sangam Harijan Yojana Sabha


87. Integration of Indian states was a great achievement of:

Subhas Chandra Bose Nehru


Surendranath Banerjee Sardar Patel


88. The author of Music, My Life'

Yesudas Pandit Ravi Sankar


Subha lakshmi K.S. Chitra


89. Who is the chair person of National Women's Commission?

Mamta Sharma Jayanthi Patnaik


Lalitha kumaramangalam Sushma singh


90. Which State known as 'Land of Bio diversity'?

Kerala Gujarat


Tamilnadu Punjab


91. Who constituted Theertha Pada Matham?

Dr. Palpu Kumaranasan


Chattampi Swami Vaghbhatananda


92. The major type of soil found in Deccan plateau:

Alluvial soil Black soil


Red soil Laterite soil


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93. When and where was Jana-Gana Mana first sung?

Calcutta session of INC in 1911 Lahore session of INC in 1929


Lucknow session of INC in 1916 Nagpur session of INC in 1922


94. The drama 'Balakalesam' written by

Ayyankali V.T. Bhattathiripad


Pandit Karuppan Narayanaguru


95. Chathrapathi Shivaj International Airport is located in

Pune Mumbai


Chennai Madurai


96. 'The Indian Struggle' is the Autobiography of

Lala Lajpath Rai Bhaghat Singh


Subhas Chandra Bose Nehru


97. The Prime Minister of India who presided continuously three times as a Chairman of the planning commission of India:

Jawaharlal Nehru Rajiv Gandhi


Indira Gandhi Lal Bahadur Sastri


98. The sudden withdrawal of Non--{;ooperation movement led to the formation of:

Ghadar party Swarajist party


Hindu Maha Sabha Muslim League


99. The Partition of India was accepted on the basis of:

Mount batten plan Cripps Mission


Cabinet Mission Independence Act of India


100. In which of these cities did Jallian Wallabagh Massacre, one of the most tragic event in the history of our freedom struggle took place?

Lucknow Kanpur


Amritsar Lahore


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