Question Bank for Technicians of OSM Group.

Fill in the blanks/ . 1 .. ______________ As per I.E. rule low voltage is up to ______________ volts.

2 $__________________ Jabalpur division is in ___________________ Railway.

3 () ________________ Symbol for star connection is ________________.

4 ( ( ________________ , . ________________ is used for measurement of illumination level.

5 _______________ . .. / 0

______________ Motor can work on A.C. or D.C. supply. 6 30% 0 .7. .7 ________ , 30 % energy can be saved by using _______ in F.T. fitting.

7 0 -- _______ 7;

17 - ; ( ____________ 7

33 H (7 ___________ The Color of good silica gel is ___________.

34 .7. ___________ . In LT overhead ___________type of conductor are utilized.

35 ___________ , ; ( Current is measured by ___________

36 Z ( .0 ___________ For safety purpose in each circuit ___________ is provided.

37 ___________ , [7 O In Energy Meter ___________ error is permitted.

38 .

For 2 H.P., 400 Volt, 3 phase squirrel cage induction motor ________________ type

starter is suitable.

52 Q _____________ , . ____________ gas is used in refrigerator.

53 ____________________

______________ is called the language of engineers.

54 _____________.

71 g ------------- In India Railway started in the year----------.

72 7 7 ----------- i 7 In India first train was run between Boribunder and --------- stations

73 0 jH Y7 ------- 0 The highest Official in Railway board is --------------- Railway board.

74 i7 F ( 0 ) -------- . For Electrical department member ---------- is available in Railway board.

75 0 VZ 0 ----- 0 In addition to Chairman Railway board there are --------members in Railway Board

76 FG F k FG ----- ( In Electrical department Chief Electrical Engineer nominated as the -------------.

77 = -V k ------- Head quarter of West-Central Railway is -------------.

78 0 0---------- Diesel Modernization workshop is situated at ----------------.

79 (0 ( ----- , For jointing of lug in cable connection------------- tools used.

80 O F ------- Y 0 Electrical General Department works under --------------------.

81 --------- , 0 , . -------- equipment is used in Laboratory and Research work.

82 ( ----- , . For daily use --------------------- instrument is use.

83 7 . F ------ 0

90 -------- ...- -------- is the equipment to measure R.P.M. of rotating machines.

91 p ------ 7

In overhead line conductor is tied on ------.

109 ... -------- O AAC stands for all ------- conductor.

110 z e7 ( ------ ------- wire is provided below overhead line conductors for safety.

111 .. --------- ) FL stands for ------- lamp.

112 0 ( -------- O , ------ iron wire is used for earth conductor.

113 (( . [ ( 7 -------- ------ is connected in series of the ceiling fan to control the speed.

114 ((O ( ------ ------- is provided in ceiling fan for hanging purpose.

115 FG 0 i[ 0 0 ------- The machine which converts electrical energy in to mechanical energy is called ------.

116 .. -------- O 7 There is no any difference in construction of DC motor and ------motor.

117 ( ------- --------------- relay is provided.to protect motor against overload.

118 - 0

127 $0 ) x ( -------- ] --------- voltage is required for starting of gas discharge lamp.

128 - ------

40 e/ Fuse. 41 2 / 2 42 $ / Disc

43 / Megger 44 ;N7e /Centrifugal 45 / Replacement

46 (/ Single 47 500 / 500 Volt 48 j/ Thermostat

49 7/ Multi

meter

50 / Three 51 / DOL

52 F-12 ( -12) 53 /Drawing 54 ../ L.E.D.

55 /DOL 56 ,O /

General Manger

57 V /

Central Railway

58 )/Peramboor 59 ;]/ Bengaluru 60 / Parallel

61 (7/ Series 62 (/ Miniature 63 2 / 2 Meter.

64 /HRC 65 / Ten. 66 7 / Battery

67 /Delta Star 68 V/

Central Railway

69 / (7/

70 / Voltage 71 1853 72 / Thane

73 VZ/ Chairman 74 N7 / Electrical 75 / Six

76 .../ E.I.G. 77 / Jabalpur 78

electromagnet

124 O /resistance 125 2 126 7 /series

127 /high 128 ,(/ First-aid 129 0 /support

130 / shock

Write True or False/ SN / Question /

Answer

1 f Z

________

Overhead line is easy for maintenance than U.G. Cables ________

2 , 7 N (. fF7

(

________

Hydrometer is used for measurement of specific gravity of electrolyte of

Batteries

________

3 F0 ; N0 (0 ________

Terminals of current transformers can be kept open while in service ________

4 0 ; 8 Y 7

13 .... .

30 F . -22 , . ________

R-22 gas is used in window type Air conditioner. ________

31 / F .Q; 50 . , ; ________

The declared frequency in India is 50 cycle per second. ________

32 - ; ( 1.8 7

Overhead line is preferred over U.G. Cable for transmission ________

48 N0 W (7

Water is added in acid to make electrolyte for battery. ________

66 YD F | ________

Charcoal & salt is put in earthing pit. ________

67 a [ DCP | ________

Fire extinguishers are filled with DCP. ________

68 N7(7 | ________

Metals are bad conductor for electricity. ________

69 7 , 0 N7 0 | ________

Battery converts chemical energy to electrical energy. ________

70 CFL 0 ( | ________

CFL is used to save electrical energy. ________

71 20 ________

There are 20 zones in Indian Railways. ________

72 7 7 i 7 ________

In India first train was run between Boribunder and Thane stations ________

73 Z[ b -, ________

The head of the zonal Railway is General Manager. ________

74 i7 F ( 0 ) 7 ________

For Electrical department member Engineering is available in Railway board. ________

75 N7 ________

Rail coach factory is situated at Bhopal. ________

76 Y

84 , I ________

Level of light measure by Lux-metre. ________

85 . $

100 O N0 ( , ________

Current transformer is use to step down the voltage ________

101 F.F../ ________

PVC/Metal pipe is used for wiring. ________

102 Z )- 0 ________

The capacity of cells is indicated in ampere hour. ________

103 w H ,

119 ( I ________

There is arrangement of power factor adjustment in single phase energy meter. ________

120 $ O ; 11 -

91 7 /True 92 7 /True 93 7 /True 94 /False 95 7 /True 96 7 /True 97 /False 98 /False 99 7 /True 100 /False 101 /False 102 7 /True 103 7 /True 104 /False 105 7 /True 106 7 /True 107 7 /True 108 7 /True 109 7 /True 110 7 /True 111 7 /True 112 7 /True 113 7 /True 114 /False 115 7 /True 116 /False 117 /False 118 7 /True 119 7 /True 120 7 /True 121 /False 122 7 /True 123 /False 124 7 /True 125 /False

./ Write full form. (Decode) SN / Question / Answer

1 ... / CWM ___________________________

2 7 / IRIEEN ___________________________

3 .... / RDSO ___________________________

4 .../ MDB ___________________________

5 ... / CFL ___________________________

6 .. / LA ___________________________

7 .... / VRLA ___________________________

8 ... / VCB ___________________________

9 .... / ACSR ___________________________

10 ... / DCP ___________________________

11 .... / ELCB ___________________________

12 .../ RPF ___________________________

13 ... / HRC ___________________________

14 ... / MCB ___________________________

15 7... / TRD ___________________________

16 ... / DRM ___________________________

17 ../ IS ___________________________

18 ... / KWH ___________________________

19 ... / CRB ___________________________

20 .... / MOCB ___________________________

21 ... / PVC ___________________________

22 .7. / PT ___________________________

23 .... / HPSV ___________________________

24 ..../ CESE ___________________________

25 .7./ CT ___________________________

26 ../ GI ___________________________

27 .../ ACB ___________________________

28 ../ MH ___________________________

29 .../ CEE ___________________________

30 .../ OCB ___________________________

31 ../ DG Set ___________________________

32 /GM ___________________________

33 / ICF ___________________________

34 / RCF ___________________________

35 / BSL ___________________________

36 / JBP ___________________________

37 / SDEE ___________________________

38 7 / CSTM ___________________________

39 / WCR ___________________________

40 /CR ___________________________

41 /EHV ___________________________

42 /OVP ___________________________

43 .../ SPP ___________________________

44 ./ SWG ___________________________

45 ../ HPMV ___________________________

46 ... / E.I.G. ___________________________

/ Answers. SN / Question / Answer 1 ... / CWM k , / Chief Workshop Manager 2 7 / IRIEEN $ O7c N7 , (

/Indian Railway Institute of Electrical Engineering, Nasik.

3 .... / RDSO 0 $ O0 0 / Research Designs and Standards Organisation

4 .../ MDB k F 0 / Main Distribution Board 5 ... / CFL ) e; )/ Compact Fluorescent Lamp 6 .. / LA c / Lightening Arrester 7 .... / VRLA a ( /Valve Regulated Lead Acid 8 ... / VCB .0 W / Vacuum Circuit Breaker 9 .... / ACSR ( 7 0 /

Aluminium Conductor Steel Reinforced.

10 ... / DCP ( / Dry Chemical Powder 11 .... / ELCB 0 ( .0 W/ Earth Leakage Circuit Breaker 12 .../ RPF , 0( Z ) /

Railway Protection Force 13 ... / HRC / (7 / High Rupturing Capacity 14 ... / MCB ( .0 W/ Miniature Circuit Breaker 15 7... / TRD N $c0; (0 F F)/ Traction Department 16 ... / DRM ,/ Divisional Railway Manager 17 ../ IS O0/ Indian Standards 18 ... / KWH . 0/ Kilo Watt Hours. 19 ... / CRB 0 VZ / Chairman Railway Board 20 .... / MOCB ( .0 W / Minimum Oil Circuit Breaker 21 ... / PVC 7 F / Poly Vinyl Chloride 22 .7. / PT ; ( N0 / Potential Transformer 23 .... / HPSV , $ / High Pressure Sodium Vapour

24 ..../ CESE k FG / Chief Electrical Service Engineer

25 .7./ CT ; N0/ Current Transformer 26 ../ GI 0 / Galvanised Iron 27 .../ ACB .0 W/ Air Circuit Breaker 28 ../ MH c / Metal Halide 29 .../ CEE k i7 / Chief Electrical Engineer 30 .../ OCB .0 W / Oil Circuit Breaker 31 ../ DG Set $

Which fire extinguisher is suitable for electrical fire?

4 .7. ? What is meant by CT? 5 .. ? What is meant by LA? 6 . ? How many zones are in Indian Railways? 7 0 jH Y7 ? Who is the highest Official in

Railway board? 8 = -V k ?

Where is the Head quarter of West-Central Railway? 9 V k ?

Where is the Head quarter of Central Railways? 10 7f N7 ? Where is the Integral Coach Factory is situated ? 11

Germanium and silicon are which type of material? 25 FG .0 0 .0 ( .

? What is provided to protect electrical circuit from short circuit? 26 ....

What do you mean by ELCB? 27 . ?

In which condition the Isolator is operated? 28 .7.. ?

PTW stands for? 29 ( a [ . , (

? For which type of fire, Dry chemical powder type fire extinguisher is used?

30 ; ? In which circuit current is same?

31 ? What is same in parallel circuit?

32 FG ? What is the unit of electrical power?

33 1000 . . ?

How much kilowatt is equal to1000 watt? 34 = . ?

How much watt is equal to One HP? 35 ; ( . FG ?

What is called the path of conductors arranged for flow of current? 36 0

What is the work of Diode? 37 , (7 , . ?

What is the total resistance of the circuit if all the resistances are connected in series? 38 ) ?

Write down the name of magnet poles? 39 O7 ?

What is other name of secondary cell? 40 ) .; ?

What is name of Lamp filaments metal?

41 ... ? What do mean by MMF?

42 Y f O 7 ? Generally which grade of Pencil is used in drawing?

43 Y 7 ? What is called if more than one cell are connected in series/ parallel?

44 F, = ? In ammonia print which lines are formed on white background?

45 Y O 0 0 . $f ? What is the temperature limit of Y class insulating material?

46 N0 ? What is called to the transformer?

47 uO N0 . , ? What are the types of Instrument transformers?

48 ON / 7 ? In which connection there is no any neutral point?

49 ? What is same in delta connection?

50 7 N0 , . ? Which type of transformer is used for Multimeter and ammeter?

51 7 , N0 , ? Which type of transformer is used In generating station?

52 NO0 (V (? What is working principle of Transformer?

53 ON i . ? What is the voltage in between phase and neutral In star connection?

54 Z . 0 ? What is the unit of capacity of cells?

55 ? Which types of conduit are used for wiring?

56 w ,

63 a ? In which type of fan regulator losses are less?

64 FG 0 i[ 0 0 ? What is called that machine which converts electrical energy in to mechanical

energy? 65 O . , ?

What are the types of conductor? 66 ( ? Which relay is

provided.to protect motor against overload? 67 0 ? Which coil is provided in

starter for starting purpose? 68 - 0

82 ( , (0 ) ? Which type of submersible pump is used for open well?

83 (0 ) ( . , , = ? Which protection is essential for submersible pump?

84 ] (

7 0 VZ /

Chairman Railway

Board

8 / Jabalpur 9 / CST Mumbai

10 ) /Peramboor 11 / Varanasi 12 .p)/ Crimping

13 (/ CESE 14 ; 7 / Secondary 15 0 ;/ Torque

Wrench

16 / Welfare 17 ( / Calibration 18 F7/ Opposite

19 $

O 7

0/ Aluminium

conductor steel

reinforced.

/ 6to 8 times of running current

/refrigeration ton

61 e /Flood Light

62 / Stator & Rotor

63 N/electronic

64 /motor 65 ,/ 3types 66 / Overload relay

67 / No volt Coil

68 / timer 69 .../ D.O.L.

70 0 / universal

71 7F

/ Polyvinyl chloride cable

72 p ( (

u / cross linked polymer

extruded cable 73 / 2 coils 74 48 / sweep 75 500 / volt

76 / phase 77 10 /years 78 / choke

79 / Lightning arrester

80 (0/ submersible 81 ;N7 /centrifugal

82 - /mono-block

83 -/ dry-run 84 ON/ neutral

85 ;/ danger 86 YD/earthing 87 a/ fire extinguisher

88 1.2 / meter 89 /anemometer 90 O7i/ anti-climbing device

91 0 / thermal power station

92 N

/ hydroelectric power station

/ Match the Pair.

A)

.p. /Part A .p. / Part B 1 ( FG 7Z/

Electrical Inspector to

Government.

A (7 / Silica Gel

2 W/ Breather B k i7 / CEE

3 F / Yellow Light C Z / Safety Device 4 / Helmet D ;/ Dry Sand 5 / Fire Bucket E I7 )/

HPSV Lamp 6 (7 / Ceiling Fan F ( /

DCP Type 7 a [/

Fire Extinguisher G 2.5 MFD ( /

2.5 MFD capacitor 8 / Line Voltage H ,( / Priming 9 ;N7e )/

Centrifugal Pump I 0 / Self-Starter

10 .. / DG set J / Voltage between 2 phases

B)

.p. /Part A .p. / Part B 1 N0 / Transformer A -134 a/ R-134a 2 .Q/ Refrigerator B / ; / Explosion

Vent

3 e ( / Sulphuric Acid

C Q; ( 7 / Refrigerant Leakage testing

4 / Metal Halide D H2 SO4 5 / Soap Solution E ,/ white

Color Light

C)

.p. /Part A .p. / Part B 1 N0 / Transformer A 2 c/ 2 Volts 2 F / Window AC B 7

(/ For Automatic Operation

3 / Voltage of Cell

C AMF / AMF Panel

4 j/ Thermostat D / For Cooling of Room

5 .. / D.G.Set. E 7 /Bucholz Relay

D)

.p. /Part A .p. / Part B 1

.p. / Ans.

.p. /Ans.

.p. /Ans.

.p. /Ans.

.p. /Ans.

1 B 2 A 3 C 4 E 5 D

6 G 7 F 8 J 9 H 10 I

B)

.p. / Ans.

.p. /Ans.

.p. /Ans.

.p. /Ans.

.p. /Ans.

1 B 2 A 3 D 4 E 5 C

C)

.p. / Ans.

.p. /Ans.

.p. /Ans.

.p. /Ans.

.p. /Ans.

1 E 2 D 3 A 4 B 5 C

D)

.p. / Ans.

.p. /Ans.

.p. /Ans.

.p. /Ans.

.p. /Ans.

1 B 2 A 3 E 4 D 5 C

E)

.p. / Ans.

.p. /Ans.

.p. /Ans.

.p. /Ans.

.p. /Ans.

1 D 2 A 3 E 4 B 5 C

F)

.p. / Ans.

.p. /Ans.

.p. /Ans.

.p. /Ans.

.p. /Ans.

1 C 2 D 3 E 4 B 5 A

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