Objective Questions Book 1.pdf

CHAPTER – 1 METRIC AND ENGLISH SYSTEM Objective questions 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30.

CGS System means _____________________ MKS System means_____________________ FPS System means ______________________ CGS & MKS system are _______________Systems. FPS is a ___________________ Systems. SI unit correspond to _____________________ Systems. 1 inch = _______________Cm 1 C.M = ____________mm. 1m = ______________Cm 1 km = ____________m. 1 micron = ___________m. Area of a rectangle is ____________ Area of a triangle is ___________________ A unit of area is ___________________ Volume is expressed in ____________________ I Gallon is _______________Liter. Liter is ________________ CC. Units of weight are ___________________ 1 Kg is ________________Pound. 1 Metric tonne is ____________Kgs. 1 Quintal is _________________Kgs. Unit of Pressure ______________________ 1 Atmospheric Pressure is ___________________PSI. 1 Kg / cm2 is ____________________PSI 1 Atmospheric pressure is _____________Kg / cm2 1 Metric II.P. is __________________ Watts. 1 Kg. is equal to ________________Grams. 1 KW________________________________Watts. Formula for converting 0F to 0C is =_______________ Formula for converting 0C to 0F is = _______________

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CHAPTER – III IDENTIFICATION AND USAGE OF ELECTRIC HAND TOOLS 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28.

Type of Pliers used for electrical work are __________, ________, ____ The wooden hammer is known as ____________________. The tenon saw cut the wood in ________________direction. ___________ No of edge available in electrician knife. Small screwdrivers are called ______________________________. ___________ is used for fix the wiring exactly vertical position while doing wiring. ___________ is used to hold pipes while threading. ___________ is used to remove / tighten a thread pipe. ___________ is used to measure the diameter of the copper wire. ___________ Caliper measure and accuracy of 0.02 mm. ___________ Caliper is used measure out side diameter of the pipe. ___________ Caliper is used measure in side diameter of the pipe. ___________ is used to measure the single phase supply. ___________ saw is used to cut the thick wood. ___________ saw is used to cut the thin wood ___________ saw is used to cut the conduit and GI pipes. ___________ is used for chipping and scrapping unwanted wood. ___________ Stone is used for sharpen. ___________ is used to drill hole in the wooden piece. ___________ is used to make hole on wall to fix pipe used for wiring.. ___________ hammer is generally used for electrical application. ___________ tool is used for soldering. ___________ tool is used to check the object in plane or perpendicular. ___________ is used for cutting insulation papers for winding. ___________ is used for cutting tin sheets. ___________ is used to measure the length of wire required for wiring. ___________ is used to smoothen the surface of the metal piece. ___________ is used to measure the wire gauge.

29. 30. 31. 32. 33. 34. 35. 36. 37.

___________ is used to remove the pulley from the shaft of the motor. ___________ is used to test 3-phase supply. ___________ tool is used to cut the copper pipe for AC application. ___________ tool is used to bend the copper pipe for AC application. ___________ is for making joints in a copper pipe. ___________ is used to remove the nut from the bolt. ___________ can be used to remove various size of bolts. ___________ is used to make a guide hole for screws in wooden piece. ___________ is used for discharging HT supply.

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CHAPTER – IV ELECTRICAL MEASUREMENT AND MEASURING INSTRUMENTS 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33.

___________ meter is used to measure the current in a circuit ___________ meter is used to measure milli ampere. 1 mA = ___________ A. Ammeter should connected in ___________ with the circuit. ___________ meter is used to measure the current in circuit with out disconnecting the connections. ___________ type of clip on ammeter is used to measure the battery current. ___________ ammeter is used for battery charging / discharging panel. ___________ is used along with DC ammeter for measuring high DC current. ___________ is used along with AC ammeter to measure higher current. ___________ is used to measure voltage in circuit. Voltmeter should be connected in ___________ with the circuit. ___________ is used along with voltmeter to measure HT voltage. 1 mV= ___________ V. ___________ is used to measure resistance. ___________ is used to measure the insulation resistance of a motor. ___________ is used to measure the earth resistance. ___________ is used to check the condition of bearing. ___________ is used to check the specific gravity of battery electrolyte. ___________ is used to measure fight intensity. ___________ is used to measure the temperature. ___________ is used to measure the pressure in AC system. ___________ is used to measure humidity. ___________ instrument is used to see the waveform of a signal. ___________ instrument is used to check the speed of the motor. ___________ is used to measure frequency of a sine wave. ___________ is used to create vacuum in AC plant. ___________ meter is used to measure power consumed by a load. ___________ meter is used to measure electrical energy. State electricity boards are providing ___________ meters in industrial consumers for monthly meter reading. ___________, ___________, ___________ & ___________ meters are available in trivector meter. ___________ meter is used to measure power factor in an electrical circuit. ___________ thermometer is used to measure the temperature of a substance with out contact. ___________ meter is used to measure the temperature of an oven.

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CHAPTER –V CELLS AND BATTERIES 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32.

___________ is an Electro chemical device. ___________ cell can’t be recharged. ___________ cells can be recharged. Group of cells is called___________ The liquid filled inside a lead acid battery is called ___________ The positive plate of a fully charged lead acid battery is ___________ The negative plate of a fully charged lead acid battery is ___________ The electrolyte used in lead acid cell is ___________ The container of a lead acid cell is ___________ or __________ ___________ is used to avoid short circuit between + ve & -ve plates inside a cell. The gas inside a lead acid cell escapes through ___________ When 3 lead acid cells are connected in series the total voltage is ___________ Gassing inside a battery starts when it is ___________ Rated voltage of a lead acid cell is ___________ Rated voltage of a dry cell is ___________ The capacity of a lead acid cell is denoted in___________ The capacity of battery used in TL application ___________ AH. The capacity of battery used for under slung AC coaches is ___________AH. Capacity of battery used for RMPU coaches is ___________ The specific gravity of a fully charged 120Ah TL battery will be ___________ The specific gravity of a fully charged 800Ah battery will be ___________ Flooded battery shouldn’t be discharged below. ___________ specific gravity. The flooded battery shouldn’t be discharged below. ___________V. ___________ is applied on the inter cell connections to avoid sulphation. For initial charging of 120 AH TL battery, charging current is _________ A. The reference temperature taken or battery charging is ___________ 0C ___________ water is used for preparing electrolyte with acid. ___________ to be added with___________while preparing electrolyte. ___________ type of charging used to change flooded battery during POH. Chemical name for sulfuric acid is ___________. When 3-lead acid battery of 120 AH connected in parallel the total voltage is ___________ total AH is ___________. RMPU coaches use ___________ type of battery.

33. ___________ and ___________ gases are emitted from a fully charged lead acid battery. 34. ___________ cells are tested during trip attention. 35. Specific gravity of distilled water is ___________ 36. Specific gravity of concentrate acid is ___________. 37. VRLA battery works in t he principle of ____________. 38. The type of separator used in VRLA battery is called____________. 39. The recommended float voltage of a VRLA cell is ________ V. 40. The recommended boost voltage of a VRLA cell is __________ V. 4

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CHAPTER – VI TRAINLIGHTING SYSTEM 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43 44.

The work voltage of self generated TL coaches ___________ ___________ type of Alternator is used for TL application The capacity of alternator used for BG TL coach is _________. In the stator of the brush less alternator ___________ & ___________ winding are available. ___________ Voltage to be applied to the field of an alternator. ___________ magnetism will retain in the stator when field winding of alternator is excited by a DC voltage once. The axle pulley diameter is ___________ mm PCD. The alternator pulley diameter is ___________ mm PCD. The ‘V’ belt size used in alternator ___________ Diode is used as a ___________ ___________ is the heart / rectifier cum regulator ___________ is used to sense the current in the 4.5 KW alternator. ET is a ___________ ___________ diode is used in a DT? ___________ rectifier is used in regulator cum rectifier. Field fuse used in a 4.5 kW rectifier cum regulator is___________A Main fuse used in a 4.5 kW rectifier cum regulator is ___________ A. ___________ mm fan is used in Train lighting. The wattage a 400-mm sweep fan is ___________ The make of carbon brushes are ___________, ___________, ___________ The wear limit mark of the carbon brush is ___________mm. Minimum illumination level of a 1st class coach with IC lamp is _______Lux The illumination level of 1st class couch with FL lamp is ___________ Lux. Minimum illumination level of a II class coach with IC lamp is ___________ Lux. Minimum illumination level of a II class coach with FL lamp is ___________ Lux. The wattage of lamps used in TL coach is _____, ___________, ___________. The wattage of CFL used in TL coach is ___________ W. Size of wire used for TL wiring under frame ___________ sq.mm The MCB used for L1 circuit is ___________A. The MCB used for L2 circuit is ___________ A. The MCB used for F1 circuit is ___________ A. The MCB used for SPM Circuit is ___________ A. The HRC fuse used for TL battery supply is ___________ A. The HRC fuse used in – VE FCJB is ___________ A. The SWG fuse wire used for lighting / fan is The wire size used for TL fan / light ___________ sq.mm The wire size used for L1 circuit is ___________sq.mm The wire size used for regulator to battery is ___________ sq.mm. The wire size used for alternator to regulator is ___________ sq.mm. Air Clearance of ___________mm is specified between any live part & coach body in a 110 V TL coach. Minimum Air between + VE & -VE wire of TL coach wiring is _________mm ___________types of fuse wires are used for rewire able fuses in TL coaches. ___________ type of test lamp is used to identify coach earth. The maximum voltage drop in a 110 TL coach is ___________V. 5

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CHAPTER – VII AIR CONDITIONING & REFRIGERATION 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40.

Matter exists in three different states they are ______, ________, ________ Pressure is defined as ___________ Unit of pressure is ___________ Atmospheric pressure is ___________ PSI Refrigeration means ___________ Sensible heat is defined as ___________ Freezing points is defined as ___________ Latent heat is defined as ___________ Boiling point is defined as ___________ Boiling point of water is 0C___________ BTU is defined as ___________ K cal is defined as ___________ Ton of refrigeration means___________ The basic parts of a refrigeration system is ___________, ___________ The refrigerant used in under slung AC System is ___________ The refrigerant used in RMPU AC is ___________ The refrigerant used in refrigerator is ___________ The refrigerant used in water cooler is ___________ The refrigerant used in bottle cooler is ___________ The function of a brush less alternator ___________ The capacity of brush less Alternator used in AC coaches are___________ ___________ & ___________ ___________ & ___________windings are available in stator of the Alternator. Rotor construction of brush less alternator is ___________ & ___________ When a field is exited by a battery ___________ magnetism is maintained. The out put voltage of a Alternator depends upon ___________ &___________ The size of the ‘V’ belt used in Alternator is ___________ The full compliment of ‘V’ belt in Alternator AC coach is ___________ nos The rated current of 25 KW Alternator is ___________amps. The function of rectifier cum regulator is ___________ & ___________ Converting AC to DC is called ___________ ___________ is the heart of rectifier cum regulator The function of DT is ___________ In DT ___________ diode is used. ___________ diode will protect the MA from voltage surges from the field. The field fuse used in a rectifier cum regulator is ___________amps Battery means For a fully charged 800 Ah cell the specific gravity will be ___________ A lead acid cell can be discharged up to ___________ specific gravity. A lead acid cell can be discharged up to ___________ voltage ___________ meter is used to check the specific gravity.

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41. ___________ is applied in the inter cell and end cell connection to avoid corrosion. 42. Level of electrolyte reduces in the cell after a trip is due to ___________ 43. ___________battery has got less maintenance. 44. The function of the pre-cooling transformer is to ___________ 45. The pre-cooling transformer converts ___________ V to ___________ V. 46. ___________ & ___________ control is used control the output of the pre cooling transformer. 47. The capacity of the pre-cooling transformer is ___________ A 48. The function of an inverter in a RMPU coach is ___________ 49. The temperature setting of cooling pilot relay is ___________ 50. The temperature setting of heating pilot relay is ___________ & ___________ degree 51. The direction of rotation of a 3-phase induction motor can be changed by ___________ 52. The function of compressor is ___________ 53. The function of evaporator is ___________ 54. The function of expansion value is ___________ 55. The capacity of 1 PCA in RMPU coach is ___________ ton. 56. The formula for converting in degree Fahrenheit to degree centigrade is ___________ 57. The LP cut out in RMPU coach is ___________ PSI. 58. The HP cut out in RMPU coach is ___________PSI. 59. The LP cut out in under slung coach is ___________ PSI. 60. The HP cut out in under slung coach is ___________ PSI.

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CHAPTER – VIII Basic Electricity, Knowledge about about AC/DC motors , windings 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37.

Smallest particle of an element is called The particles of an atom are ___________ The charge of electron is ___________ The charge of proton is ___________ The charge of neutron is ___________ Current means ___________ Voltage means Resistance means ___________ Unit of current is ___________ Unit of Voltage is ___________ Unit of resistance is ___________ V = IX ___________ I = V / ___________ R = ___________ / I. Unit of power is ___________ Unit of energy is ___________ Supply from battery is a ___________ type of supply. The voltage of a single-phase supply is ___________V. The voltage of 3-phase supply is ___________ V. The wires of a single-phase supply are ___________ & ___________ The two wires of a DC supply are ___________ and ___________. The four wires of a 3-phase supply are ___________ , ___________&___________ In single-phase supply Phase to Neutral voltage is ___________V. In single –phase supply phase to Earth voltage is ___________V. In single-phase supply Earth to Neutral voltage is ___________V. In 3-phase supply Phase to Phase voltage is ___________V. 11KV = ___________V. The frequency of supply available in India is ___________Hz. Examples for conductors are ___________, ___________ & ___________. Examples for insulator are ___________, ___________ & ___________. Types of DC motors are -------,------,---------Types of AC motors are -------, --------, ---------Types of starters used for 3 phase motors are --------,------------,--------,--------. ---------- is used to protect the motor from over load. The running current of a 5 HP motor is approximately -------- amps. Single phasing preventor is used for -----------. Types of windings used for motor windings are ------ and ---------.

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CHAPTER – IX TRANSFORMER, OH LINES, CABLES, WIRING AND CONTROL EQUIPMENT 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.

Transformer is a ___________ device ___________ transformer is used to increase the voltage. ___________ transformer is used to reduce voltage. Single winding transformer is called ___________ Transformer has got ___________ & ___________ winding. Transmission transformer is called ___________transformer. ___________ transformer is used to cater load to the consumer. ___________ oil is used in the transformer. The purpose of transformer oil is to ___________ ___________ is filled in breather of the transformer to remove moisture. 11. Colour of the good silica gel is ___________ 12. After absorbing the moisture the colour of the silica gel changes to ___________ 13. ___________ is used in the transformer to indicate oil temperature. 14. ___________ is used in the transformer to indicate the oil level. 15. ___________ will open when the pressure in side the transformer crosses the 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30.

permissible limit. ___________ is used to change the voltage output of a transformer. The capacity of a transformer is rate in ___________. 1 MVA = ___________ VA. The ___________ and ___________ of the distribution transformer to be earthen. BDV of transformer oil is measured in ___________. To measure high AC current ___________ transformer is used. Example of OH conductor is ___________. The post to post distance in a OH line is called ___________ Example for UG cable is ___________. In UG cable 3 ½ core means In UG cable ___________ is used to product the cable from mechanical damage. ___________ joint is used to connect two bits 185 Sq.mm LTUG cables. ___________ size of copper cable is used for lights and tans wiring in houses. ___________ size of copper cable is used for 5A plug points in houses. ___________ size of copper cable is used for 1500W water heater in houses.

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EXPAND THE FOLLOWING: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41.

mm Cm Kg gm 0 F 0 C HP kW k Wh SWG A Ω W V LT HT EHT Ah Pb VRLA SMF NG BG MG BCT EFT EOG MOG PCD MA DT ET CT KMPH LX XLPE HZ SMI ERRU AHU LHB

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42 43 44 45 46 47 48 49 50 51 52 53

FNE MCB HRC DFB BHP DG PVC FRP SPM CFL AC DC

54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77

MCCB WRA LP HP OLR DBT WBT RMPU DCP CO2 IGBT BC HPSV HPMV FL IC UG OH OCB VCB TPIC PF ELCB HOER

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ANSWERS CHAPTER I 1. 2. 3. 4. 5. 6. 7. 8. 9. 10 11. 12 13. 14. 15.

Centimeter Gram Second system Meter Kilogram Second system Foot pound second system Metric British M.K.S System 2.54 Cm 10 mm 100 cm 1000 M 1 / 1000 mm or 10-6 M Length X Breadth ½bXh M2 (or) Sq.Mm M3 (or) Cubic Mm

16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30.

4.546 liters 1000 cc Kilogram 2.205 pound 1000 Kgs. 100 Kgs Kg / cm2 or PSI 14.7 pounds / Sq. inch (or) 1.033 Kg./Cm2 14.225 1.033 746 Watts 1000 1000 watts C = 5/9 (0F – 32) F = 9/5 0C + 32

Chapter III 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.

Combination pliers, Cutting pliers, Round nose Pliers, Flat nose pliers Long nose pliers, Diagonal pliers and Gas pliers Mallet 14. Hand saw 26. Measuring tape Forward 15. Tenon saw 27. Files Two 16. Hack saw 28. Standard wire gauge Connector 17. Firmer chisel 29. Pulley extractor Plumb bob 18. Oil stone 30. Double test lamp Pipe vice 19. Drilling machine 31. Pipe cutter Pipe wrench 20. Rawal jumper 32. Pipe bender Micrometer 21. Ball pen hammer 33. Brazing Vernier 22. Soldering Iron 34. Spanner Outside caliper 23. Try square 35. Adjustable spanner Inside caliper 24. Scissors 36. Pocker Single test lamp 25. Tin cutter 37. Discharge rod Chapter IV Ammeter 13. 10-3 26. Vacuum pump Milli Ammeter 14. Ohm meter 27. Watt meter 10-3 15. Insulation megger 28. Energy meter Series 16. Earth megger 29. Trivector meter Clip on 17. Shock pulse meter 30. KWh, kVh,KVARh, MD DC 18. Hydrometer 31. Power factor Centre Zero 19. Lux meter 32. Infrared Shunt 20. Thermometer 33. Pyrometer Current Transformer 21. Pressure gauge Volt meter 22. Hygrometer Parallel 23. Oscilloscope Potential transformer 24. Tachometer 25. Frequency meter 11

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Chapter V 1. 2. 3. 4.

Cell Primary Secondary Battery

18 19 20 21

800 Ah 1100 Ah 1.210 to 1.220 1.245 to 1.255

35 36 37 38

5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17.

Electrolyte Lead peroxide Spongy lead Diluted sulphuric acid Hard rubber , PPCP separator Vent plug 6V Fully charged 2V DC 1.5 V DC Ampere hour (Ah) 120 Ah

22 23 24 25 26 27 28 29 30 31 32 33 34

1.180 1.8 petroleum gelly 6A 27 0C Distilled Acid, distilled water Constant current H2SO4 2, 360Ah VRLA Hydrogen and oxygen Pilot

1.0 1.850 Oxygen recombination Highly absorbent glass mat( AGS) 39 2.25V 40 2.3V

CHAPTER VI 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23.

110 V Brush less 4.5 kW 3 phase AC and field winding DC Residual 572.6 mm 185 mm C 122 Rectifier MA Shunt Step down transformer Zener Bridge 6A 32 A 400 mm 38 W EG3, L16, SG159 10 mm 30 lux 60 lux

24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43. 44

16 lux 40 40, 25, 15 11 35 sq.mm 10 A 10 A 16 A 16 A 32 A 32 A 35 swg 4 sq.mm 16 Sq.mm 35 Sq.mm 16 Sq.mm 10 mm 4 mm Tinned copper Double test with three leads 3V

EG

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1 2 3 4 5 6 7 8 9 10 11 12 13

14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29

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CHAPTER VII 31 MA Solid, Liquid, gas Force / unit area 32 Error detector Kg / cm2 or PSI 33 Zener 14.7 PSI 34 Free wheeling The process of removing heat from 35 6A the substance under controlled conditions the change in temperature with out 36 Group of cells changing its state The temperature at which a liquid 37 1.245- 1.255 changes into solid state It is defined as the change in state 38 1.180 without changing its temperature The temperature at which a liquid 39 1.8V starts to change in to vapour state 100 0C 40 Hydrometer Heat required to raise the 41 Petroleum gelly temperature of 1 pound of water through 10 F Heat required to raise the 42 Gassing temperature of 1 kg of water through 10 C It is the rate of cooling produced by 43 VRLA 2000pounds( lbs) of ice when melting at 32ºF (oºC) in 24 Hours (one day) Compressor, condenser, expansion 44 Change battery when coach is value, evaporator stationary at Station or yard F12 45 415 V to 110 V F22 46 Fine and course R134a 47 200 A F134a 48 To convert DC to AC F134a 49 24,24,26 To generate 3 phase AC voltage 50 19,19,21 18,22.75 and 25KW 51 Interchanging any two phases AC winding and DC field winding 52 Increases pressure & temperature of the refrigerant. Teeth and slot 53 Liquid changes in to vapour by absorbing latent heat Residual 54 Decrease the pressure & temperature of liquid refrigerate Field excitation and rotor speed 55 7 ton C122 56 C = 5/9 (F-32) 6+6 57 35 PSI 193A 58 400 PSI Convert AC to DC Voltage, 59 10 PSI regulation, current regulation, Over voltage protection Rectifier 60 250 PSI 13

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CHAPTER VIII 1 2 3 4 5 6 7 8 9 10 11 12

Atom Proton, Neutron & Electron Negative Positive Neutral ( no charge) Flow of electrons Electrical pressure Opposition to the flow of current Amps (Amphere) V (Volts) Ω (ohms) V = I XR

20 21 22 23 24 25 26 27 28 29 30 31

13 I = V / R

32

14 R = V / I

33

15 Watts 16 kWh 17 DC

34 35 36

18 230 V 19 415v

37

Phase, Neutral Positive, Negative RYB & Neutral 230 V 230 V 0V 415 V 11000 V 50 Hz Silver, Copper, Aluminum Rubber, Mica,Porelum Series motor, shunt motor, compound motor Squirrel cage motor, slip ring motor, single phase motor DOL, Star & delta , Rotor resistance starter Over load relay 7.5A Protect the motor from single phasing Lap winding , wave winding

CHAPTER IX 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Static Step up Step down Auto transformer Primary & secondary Power Distribution Mineral oil Cooling& insulation Silica gel blue pink Thermometer Oil Indicator Explosion vent

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Tap Changer KVA 106VA Neutral and body kV Current transformer ACSR Span XL PE R, Y, R & N GI Armor Straight through joints 1/18 ( 1.5 sq.mm) 3/20 ( 2.5 sq.mm) 7/20 (4 sq.mm)

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EXPAND THE FOLLOWING 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

Millimeter Centimeter Kilogram Gram Degree Fahrenheit degree Centigrade Horse Power Kilo Watts Kilo Watts hour Standard Wire Gauge Ampere Ohms Watts Voltage Low Tension High Tension Extra High Tension Ampere hour Lead Value Regulated Lead Acid Sealed Maintenance Free Narrow Gauge Broad Gauge Meter Gauge Battery Charging Terminal Emergency Feed Terminal

42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67

27 28 29 30 31 32 33 34 35 36 37 38 39 40 41

End On Generation Mid On Generation Pitch Circle Dia Magnetic Amplifier Detector Excitation Transformer Current Transformer Kilometer per hour Lux Crossed Link Poly Ethylene hertz Special maintenance instruction Electronic Regulator Rectifier Unit Air Handling Unit Linke-Hofmann-Busch

68 69 70 71 72 73 74 75 76 77

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Fort Night Examination Miniature circuit Breaker High Rupturing Capacity Distribution fuse Board Break Horse Power Diesel Generator Poly Vinyl Chloride Fiber Reinforced Plastic Socket positive Main Compact Florescent Lamp Alternating Current Direct Current Molded case circuit breaker Water Raising Apparatus Low Pressure High Pressure Over Load Relay Dry Bulb Temperature Wet Bulb Temperature Roof Mounded Package Unit Dry Chemical Powder Carbon Dioxide Insulated Gate Biopolar Transistor Binate Cap High Pressure sodium Vapour lamp High Pressure Mercury vapour Lamp Florescent Lamp Integrated circuit Under Ground Over Head Oil Circuit Breaker Vacuum Circuit Breaker Table Pole Iron Clad Switch Power Factor Earth leakage circuit breaker Hours Of Employment Regulation

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