Home Fitter TT – 2nd Year (set -2)Fitter TT – 2nd Year (set -2) Load QuizSave Quiz Welcome to CBT Exam Preparation Try to repeatedly answer the questions till you get the CORRECT answers LET'S CONTINUE 1. Which special file is used for narrow work? Pillar file Square file Dread naught file Swiss pattern file 2. Why slots are provided in the slotted castle nuts? To fix split pins For good appearance Reduce the weight of nut For easy removal and fitment 3. What is the name of limit gauge? Plain ring gauge Taper plug gauge Progressive plug gauge Double ended plug gauge 4. What is the name of gauge? Ring gauge Plug gauge Taper ring gauge Taper plug gauge 5. Which gauge is used to check the gap between the mating parts? Slip gauge Plug gauge Feeler gauge Radius gauge 6. Which material is used to clean the slip gauge? Wax Kerosene Soluble oil Carbon tetra chloride 7. Which material is to wash off the lapping plate after charging? Oil Kerosene Coolant oil Petroleum jelly 8. Which material is used to protect slip gauge from rust? Oil Wax Kerosene Petroleum jelly 9. What is the procedure to built up the slip gauge for particular dimension? Start wringing with the largest slip gauges Maximum number of block Built with grade 0 accuracy Start wringing with the small slip gauge 10. What is the name of the gauge? Plain snap gauge Thread snap gauge Thread pitch gauge Adjustable snap gauge 11. Which finishing process have a high degree of dimensional accuracy? Filing Turning Grinding Lapping 12. Which is the abrasive used for lapping soft steel and non-ferrous metals? Silicon carbide Diamond Boron carbide Fused alumina 13. Why grooves are provided on the surface of the lapping plate? To allow expansion To provide clearance To retain the abrasive To permit minor adjustment 14. What is the method of surface hardening? Nitriding Pack - carburising Flame hardening Induction hardening 15. What is the method of surface hardening? Nitriding Case hardening Flame hardening Induction hardening 16. What is the name of the heat treatment process for reheating the hardened steel to a temperature below 400°C followed by cooling? Annealing Hardening Tempering Normalising 17. Why the tempering process carried out in steel? To add cutting ability To relive strain and stress To refine the grain structure To regulate the hardness and toughness 18. What is the purpose of annealing in steel? To add cutting ability To increase wear resistance To relieve the internal stress To refine the grain structure of the steel 19. What is the name of the key? Sunk key Feather key Flat saddle key Hollow saddle key 20. What is the purpose of key? To transmit torque Assembly purpose Lock the assembly part Permit clearance between mating part 21. What is the ratio of key way taper? 01:19:00 01:20:00 01:50:00 1:100 22. What is the name of key? Taper sunk key Flat saddle key Parallel sunk key Hallow saddle key 23. Which type of metal screws useful for self tapping on hard or brittle materials? | Self piercing Thread cutting Thread forming Hammer driven screw 24. What is the advantage of wing nut? In coach building work Heavy duty assembly work Loosen and tighten without wrench Provide decorative appearance 25. What is the name of gauge? Pitch gauge Angle gauge Feeler gauge Radius gauge 26. Which gauge is used to check the accuracy of an external thread? Snap gauge Thread ring gauge Thread plug gauge Centre gauge 27. What is the instrument used in measuring external diameter? Vernier caliper Outside caliper Parallel leg caliper Pair of special jaws by using slip gauge 28. Find out the height of slip gauge ‘a’?(sin 25° = 0.4226) 84.50 mm 84.52 mm 84.51 mm 85.20 mm 29. How many set of feeler gauges are available as per BIS? Set No: 1, 2 Set No: 1, 2, 3, 4 Set No: 1, 2, 3, 4, 5 Set No: 1, 2, 3, 4, 5, 6 30. What material is used to make radius and fillet gauge? Tool steel Hardened steel sheet High carbon steel Medium carbon steel 31. What is the part marked as ‘x’ in lapping tool? Slit Bush Sleeve Groove 32. What is the purpose of slit provided in the lapping tool? For clearance For expansion To retain abrasive To adjust the sleeve 33. What is the name of operation? Internal ring lapping External ring lapping Lapping internal cylinder Lapping large diameter 34. What type of abrasives are used in honing cast iron and non-ferrous materials? Diamond Boron carbide Silicon carbide Aluminium oxide 35. Which method of surface hardening, the surface remains free from scales? Nitriding Case hardening Flame hardening Induction hardening 36. What is the process if the steel is heated above critical temperature and soaking it for sufficient time and cooling it very slowly within furnace? Annealing Hardening Tempering Normalising 37. What is the process to refine the structure of steel component? Tempering Annealing Hardening Normalising 38. Which method of surface hardening is done in a heated salt bath? Flame hardening Gas carburising Pack carburising Liquid carburising 39. What is the name of part marked as X? Taper shaft Splined shaft Serrated shaft Screw pitch gauge 40. Which key has rectangular cross section is fit into keyway cut on both shaft and hub? Sunk key Feather key Flat saddle key Hollow saddle key 41. Which key is useful for fitting on tapered shafts? Feather key Gib head key Woodruff key Flat saddle key 42. Where is circular taper key used? Light duty transmission Bi-directional rotation Lengthy shaft Tapered shaft 43. How the plain bearings are kept in a position without allowing them to rotate along with the shaft? By clamps By bolt and nut By key or screws By locking device 44. What is the name of key? Flat saddle key Taper sunk key Parallel sunk key Hallow saddle key 45. What is the name of key? Sunk key Feather key Gib head key Wood ruff key 46. What is the file for lock repair and filing hard notches in keys? Pillar file Flexible file Warding file Swiss pattern file 47. What is the name of screw? Grub screw Driver screw Self taping screw Thread cutting screw 48. What is the advantage of lock washer? Provide increased bearing surface Prevent the damage to the surface Distribute even pressure on working surface Prevent bolt or nut from loosening under vibration 49. What is the name of screw driver? Offset screw driver Philips screw driver Standard screw driver Heavy duty screw driver 50. What is the name of locking device? Tab washer Locking plate Lock washer Spring washer 51. What is the advantage of using Gib headed key? Used for tapered fittings Can be withdrawn easily Provides unidirectional torque Good in high speed application 52. Which file is used for finishing sharp corners? Pillar file Riffler file Barrette file Warding file 53. What is the name of file? Tinker’s file Crossing file Swiss pattern file Dread naught file 54. Which device is used to check the workpiece to confirm the shape? | Profile gauge Snap gauge Caliper gauge Progressive gauge 55. What is the purpose of feeler gauge? Check the depth of drlled hole Check the pitch of screw thread Check the radius of workpiece Check the gap between the mating parts 56. What is the name of gauge? Drill gauge Centre gauge Profile gauge Standard wire gauge 57. Which gauge is used to check the outside diameter of a cylindrical shaft? Plug gauge Plain ring gauge Taper ring gauge Progressive plug gauge 58. What is the act of joining the slip gauges together for building up sizes? Glazing Pinning Loading Wringing 59. What material is used to make sine bar? Invar steel High speed steel High carbon steel Stabilized chromium steel 60. How the length of sine bar is specified? Distance between outer point of roller Distance between inner point of roller Distance between centre point of rollers Distance between the edges of sine bar 61. Which one forms the hypotenuse of the triangle while checking with sine bar? Surface plate Sine bar width Sine bar length Slip gauges height 62. What is the effect of excessive application of abrasive compound in lapping operation? Developing inaccuracies Bright spots will be visible Obstruct component movement Lapping compound will be sticky 63. What is caused if the lap is harder than the workpiece? Workpiece will cut the lap Accuracy can’t be obtained Lap will cut the workpiece Lapping operation leaves high spots 64. Which material is used to make small diameter laps? Cast iron Aluminium Bronze or zinc Copper or brass 65. What is the name of surface texture measuring instrument? Dial test indicator Electrical surface indicator Electronic surface indicator Mechanical surface indicator 66. Why manual stroking is preferred for large quantities in honing operation? To reduce cost To reduce time To keep close tolerance To reduce maintenance cost 67. What is the purpose of hardening? Refine the structure Increase toughness Increase cutting ability Relieve stress and strain 68. Which method of heat treatment to improve machinability and ductility in the job? Annealing Hardening Tempering Normalizing 69. What is the disadvantage of flame hardening in the heat treatment process? More distortion Long hardening time Small depth of hardening Not suitable for small workpieces 70. What is the name of method in metallic coating done by rolling or drawing the layers of metal on the base metal? Spraying Cladding Enameling Molten metal bath 71. Which type of key used if the hub of pulley has to axially slide on the shaft to some distance? Feather key Flat saddle key Circular taper key Hallow saddle key 72. What is the name of file? Pillar file Warding file Dreadnaught file Swiss pattern file 73. Which nut protects the bolt end thread from damages? Cap nut Castle nut Slotted nut Knurled nut 74. Which grade slip gauge is used for precision tool room applications? Grade 00 Grade 0 Grade I Grade II 75. Which material is used to make slip gauge block? Tool steel Low grade steel High grade steel with low thermal expansion High carbon steel 76. Which operation is performed with fine abrasive particles? Filing Lapping Scraping Polishing 77. What is the purpose of normalising? Add cutting ability Develop high hardness Increase wear resistance Remove stress and strain 78. Which structure of steel contain 0% carbon? Ferrite Pearlite Austenite Cementite 79. What is the method of surface hardening? Nitriding Case hardening Flame hardening Induction hardening 80. Which type of key is used for transmitting high torque on both direction of rotation? Flat saddle key Taper sunk key Woodruft key Tangential key 81. What is the use of ring gauge? Check hole diameter Check shaft diameter Check tapered shaft diameter Check internal thread diameter 82. Which gauge is used to check the accuracy of an internal thread? Ring gauge Snap gauge Thread ring gauge Centre gauge 83. What is the name of the gauge? Ring gauge Snap gauge Taper ring gauge Internal thread gauge 84. What is the procedure to select the slip gauge for particular dimension? Built with grade accuracy Minimum number of blocks Maximum number of block Start wringing with small size slip gauge 85. Which process improves the quality of fit between the mating components? Filing Turning Grinding Lapping 86. Which abrasive is used for lapping hardened steel and cast iron? Silicon carbide Boron carbide Aluminium oxide Fused aluminum 87. Which finishing operation is performed by the tool that rotate and reciprocate simultaneously? Drilling Honing Lapping Grinding 88. Why holes are provided in ring type lapping? Lubrication Removal of heat Hold lapping compound Increase the efficiency 89. Which type of key has one face curvature to match shaft surface? Sunk key Flat saddle key Circular taper key Hallow saddle key 90. What is the name of key? Parallel sunk key Gib head key Wood ruff key Tapper sunk key 91. Which type of cutting tool is tempered by heating upto 230°C? Taps Drills Turning tool Reamers 92. Why normalising process is carried out in steel? To add cutting ability To develop high hardness To remove stress and strain To increase wear resistance 93. Which heat treatment process increases the wear resistance of steel? Annealing Tempering Hardening Normalising 94. What is the purpose of annealing? To soften the steel To add cutting ability To increase wear resistance To refine the grain structure of the steel 95. Why square head screws are provided with collar? Protect work surface Raise the head width Provide leak proof joint Provide access for tools 96. What is the purpose of taper plug gauges? Check the hole with perfect fit Check the inside threaded dia Check tapered hole with perfect fit Check the taper accuracy of outside dia 97. Why slots are provided in the adjustable ring lap? For lubrication Permit clearance For expansion Permit feeding of lapping compound 98. Which abrasive has excellent cutting properties and expensive? Diamond Boron carbide Silicon carbide Aluminium oxide 99. What is lapping? Filing operation Grinding operation Chiseling operation Precision finishing operation 100. What is the name of lap tool? Split bush lap Adjustable ring lap Adjustable solid lap Charging cylindrical lap 101. What is lead of multi start thread? Pitch x no of starts Lead x no of starts Pitch x major diameter Pitch x minor diameter 102. What is the type of screw? Hexagon head screw | Grub screws Round head screw Square head screw 103. What is the name of the nut? Castle nut Slotted nut T - Nut Cap nut 104. What is the name of nut? Castle nut Hexagon weld nut Hexagon nut with collar Self locking nut 105. What is the name of tool? Face wrench Hook spanner Face pin wrench Pin wrench 106. What is the type of screw? Hexagon socket head cap screws Hexagon head screws Counter sink head screws Raised cheese hand screws 107. What is the file that is rectangular in section and parallel in width with one safe edge? Dreadnaught file Pillar file Warding file Swiss pattern file 108. Which file has double cut on faces and single cut at edges? Pillar file Single cut file Rasp cut file Warding file 109. What is the name of file? Pillar file Warding file Swiss pattern file Dreadnaught file 110. What is the name of gauge? Thread plug gauge Thread ring gauge Caliper gauge Ring gauge 111. What is the name of gauge? Taper gauge Snap gauge Progressive plug gauge Double end plug gauge 112. What is the use of drill gauge? Check the diameter of the drill Check the length of the drill Check the cutting angle of the drill Check the lip length 113. What is marked as ‘X’? Length Depth surface Contact rollers Width 114. What is the name of gauge? Screw pitch gauge Angle gauge Slip gauge Centre gauge 115. What is the name of gauge? Centre gauge Screw pitch gauge Radius gauge Snap gauge 116. What is the type of gauge? Thread ring gauge Roller type thread caliper gauge Thread plug gauge Anvil type thread snap gauge 117. What is the type of gauge? Double ended plug gauge Progressive plug gauge Taper plug gauge Taper ring gauge 118. What is marked as ‘X ‘? Double ended plug gauge - No Go Progressive plug gauge - Go Taper plug gauge - Go Progressive plug gauge - No Go 119. What is the gauge? Snap gauge Progressive plug gauge Taper ring gauge Taper plug gauge 120. What is marked as ‘X’? Thread ring gauge - Go Thread ring gauge - No Go Ring gauge Thread pitch gauge 121. What is the name of gauge? Thread ring gauge Thread plug gauge Thread pitch gauge Taper plug gauge 122. What is the quenching media used in heat treatment to obtain faster rate of cooling? Brine solution Air Oil Water 123. What is marked as ‘X’ ? Upper critical temperature Lower critical temperature Austenite Ferrite 124. What is the angle of elbows and bends that provide diversions? 90° & 45° 30° & 60° 20° & 40° 70° & 120° 125. What type of screws are used in the places were frequent removal and assembling? Square head screws Hexagon socket head cap screws Round head screws Cheese head screws 126. What type of nuts are used in coach building work? Square nut T-nuts Wing nuts Cap nuts 127. What is the name of nut having top part in cylindrical shape and bottom part in hexagonal shape? Slotted nut T - Nuts Cap nuts Castle nuts 128. Which type of machine screw used in heavy duty assembly work? Pan head screw Cheese head screw Round head screw Hexagon head screws 129. Which type of machine screw is used in light assembly work? Hexagon head screw Cheese head screw Hexagon socket head cap screws Square head counter sink head screws 130. Which file with sharp and parallel teeth used on soft and non metallic materials? Pillar file Tinker file Dreadnaught file Warding file 131. Which file used as finishing tool and ensure precision smoothness? Swiss pattern file Pillar file Dreadnaught file Warding file 132. What is the thickness range of BIS set of feeler gauge? 0.01 mm to 1 mm in steps of 0.01 mm 0.02 mm to 1 mm in steps of 0.02 mm 0.03 mm to 1 mm in steps of 0.01 mm 0.04 mm to 1 mm in steps of 0.01 mm 133. What is the height of slip gauge (q = 25° = 0.4226)? 41.26 42.26 43.26 44.26 134. What is the instrument used for measuring internal diameter of workpiece? Parallel leg caliper Outside caliper Pair of special jaws by using slip gauge Vernier caliper 135. What is the calibration grade of slip gauges? Grade 0 Grade 00 Grade I Grade II 136. What is the method of build of size using slip gauge? Wringing Sliding Glazing Loading 137. What is the gauge used? Thread ring gauge Thread plug gauge Screw pitch gauge Thread caliper gauge 138. What is the purpose of ring gauge? Check the outside diameter Check the holes diameter Check the tapered shaft diameter Check the outside threads 139. What is the range of size in individual radius gauges? Step of 1mm Step of 0.5mm Step of 1.5mm Step of 2mm 140. What is the gauge to check acceptable size on external diameter of a shaft? Ring gauge - Go Plug gauge - Go Ring gauge - No Go Plug gauge - No Go 141. What is the finishing process carried out with abrasive sticks to correct the profile of internal cylindrical surfaces? Lapping Honing Grinding Filing 142. Which lapping material used for easy charging and rapid cutting? Cast iron Copper and brass Close grained iron White cast iron 143. Which lap material is inexpensive and can be expanded if worn out? Brass Cast iron Lead Bronze 144. Which type of abrasive material is externally hard and used in lapping for heavy stock removal? Silicon carbide Aluminium oxide Boron carbide Diamond 145. Which abrasive is used for lapping dies and gauges? Boron carbide Silicon carbide Diamond Aluminium oxide 146. Which is the hardest of all abrasive material and used for lapping tungsten carbide? Silicon carbide Boron carbide Diamond Aluminium oxide 147. What is the abrasive used for lapping accurately finishing very small holes? Silicon carbide Diamond Boron carbide Aluminium oxide 148. What is the purpose of lapping vehicles? Regulate cutting action and lubricate surface Medium effective operation Decrease dimensional accuracy Decrease cutting ability 149. Which lapping vehicle is used for lapping copper and its alloys? Vegetable oil Machine oil Soluble oil Petroleum jelly 150. What is the purpose of lapping tool? Lapping tool for external surface Lapping tool for internal surface Lapping tool for external cylindrical surface Lapping tool for internal cylindrical surface 151. What is the temperature that change of structure to austenite starts at 723° in heat treatment process? Lower critical temperature Upper critical temperature Melting temperature Critical temperature 152. What is the process if hot steel is cooled slowly the old structure is retained and it will have fine grains that makes it easily machined? Annealing Hardening Tempering Normalising 153. What is the name if hot steel cooled rapidly to form a new structure ? Ferrite Austenite Martensite Pearlite 154. What is the process to add cutting ability and wear resistance on steel? Tempering Annealing Normalising Hardening 155. What is the heat treatment process to remove extreme brittleness and induce toughness and shock resistance in steel? Tempering Annealing Normalising Hardening 156. What is the process of steel being heated to required temperature and held in the same temperature for a period of time? Soaking Heating Quenching Hardening 157. What is the purpose of brine solution, water, oil and air used in heat treatment process? Soaking Quenching Heating Austenite 158. What quenching media is used for special alloy steels? Brine solution Water Oil Cold Air 159. What is the heat treatment process of reheating the hardened steel to a temperature below 400°C followed by cooling? Tempering Hardening Annealing Normalising 160. What is the advantage of annealing ? To relieve the internal stress To add cutting ability To refine the grain structure of the steel To increase wear resistance 161. What is the process of removing the internal defects of steel components? Annealing Normalising Hardened Tempering 162. Which key is used for transmitting light torque? Saddle key Woodruff key Gib head key Feather key 163. How the mechanical properties of steel like strength, toughness, ductility are affected? By tempering By hardening By annealing By normalising 164. Which bearing material has poor thermal conductivity? Nylon Teflon Sintered alloys Laminated phenolics 165. What is the purpose of deep groove type of ball races provided in the ball bearing? To withstand shock To carry journal loads To withstand axial thrust To withstand radial load 166. Why the double row roller bearing is used? To take axial load To take radial load To take heavy axial load To take heavy radial load 167. Why the melting point of bearing material should be lower than that of the shaft? Prevents shaft seizure Prevent damage to bearing Allow the bearing to run efficiently Prevent thermal expansion of shaft 168. Which alloying metal bearing can work at higher temperature and higher load carrying capacity? Cast iron White metal Copper lead alloys Cadmium based alloy 169. What is the method of metal coating? Cladding Sherardising Galvanising Electroplating 170. Which metal is used in electroplating to the metal surface to resist corrosion for long period and to retain high polish? Lead Nickel Chromium Aluminium 171. Which metal protects corrosion resistant and does not crack or peel off due to temperature variation on coating? Zinc Nickel Copper Chromium 172. Which corrosion resistant metal is used in chemical plant and food processing? Lead Copper Aluminium Stainless steel 173. What is the purpose of thrust ball bearing? Axial load Radial load Axial thrust load Vertical thrust load 174. What is the name of bearing? Needle bearing Thrust ball bearing Taper roller bearing Angular contact ball bearing 175. Which bearing material is used in connecting rod and electrical motors? White metal Sintered alloy Aluminium alloy Copper lead alloy 176. What is the operation of a metal coated with other metal to obtain protecting surface? Cladding Galvanising Cementation Electroplating 177. Which metal powder is used in calorising process to prevent corrosion? Zinc powder Nickel powder Chromium powder Aluminium powdeR 178. What is the temperature required to process the chromising for prevention of corrosion? 900 to 1100°C 1000 to 1100°C 1100 to 1200°C 1300 to 1400°C 179. Which metal has high resistance to chemical reaction? Lead Nickel Copper Aluminium 180. What is the name of part marked ‘X’? Ball case Inner race Outer race Ball separating gauge 181. Which bearing material is used for light loading and low speed application? Cast iron Tin bronze Cadmium based alloy Copper and lead alloys 182. What is the disadvantage of thrust ball bearing? Cannot take any radial load Cannot take horizontal end thrust Cannot take load on both directions Cannot take any vertical thrust load 183. Why deep groove type of ball races provided in the ball bearing? Withstand shock Withstand axial thrust Withstand radial load Carry journal loads 184. Which bearing carry the load parallel to its bearing axis? Split bearing Plain bearing Thrust bearing Radial bearing | 185. Which bearing material is best suited for hard journals? Sintered alloy Aluminium alloy Copper lead alloy Cadmium based alloy 186. Which bearing material has low co-efficient of friction and high material cost? Nylon Teflon Thrust ball bearing Laminated phenolics 187. Which type of bearing used for taking high axial thrust load? Roller bearing Tapered roller bearing Self align roller bearing Angular contact ball bearing 188. What is the name of bearing? Split bearing Solid bearing Thrust bearing Journal bearing 189. What is the name of bearing? Ball bearing Roller bearing Thrust bearing Journal bearing 190. What is the name of bearing? Split bearing Bush bearing Solid bearing Journal bearing 191. What is the part marked as ‘x’ in the bearing? Outer race Ball cage Inner race Rolling elements 192. Which type of bearing used for very heavy radial load? Ball bearing Bush bearing Needle bearing Double row roller bearing 193. Which type of bearing is designed to take axial thrust as well as radial loads? Ball bearing Roller bearing Taper roller bearing Angular contact ball bearing 194. What is the name of instrument? Depth vernier gauge Vernier height gauge Clamp type height gauge Height gauge with slip gauge holder 195. Which type of bearing metal is self lubricated? White metal Sintered alloy Aluminium alloy Cadmium based alloy 196. Which bearing is used in the limited space? Needle bearing Thrust ball bearing Taper roller bearing Angular contact ball bearing 197. Which bearing loading is at right angles to the bearing axis? Thrust bearing Journal bearing Solid bearing Split bearing 198. Which type of bearing has provision for wear adjustment? Adjustable slide bearing Thrust ball bearing Tapered roller bearing Self aligned bush bearing 199. Which part of ball bearing do not rotate along the bearing assembly? Ball cage Inner race Outer race Rolling elements 200. Why extra clearance is provided between bearing and journal in the aluminium alloy bearing? To allow lubricant to flow freely To overcome leaner expansion To over come co-efficient expansion To overcome high thermal expansion 201. How bunching up of rolling elements avoided in the bearing assembly? By cage By grooves By out race By inner race 202. What is the angle of deviations provided on elbows and bends in pipe works? 90° and 45° 30° and 60° 20° and 40° 60° and 45° 203. What causes loud noise in the tap if turned ON? Spindle bend Spindle thread wornout Stuffing box packing dry Valve loose on spindle 204. What is the cause of water dripping from the tap even after closed? Defective washer Spindle thread wornout Bend spindle Loose valve 205. What type of fitting is used in straight pipeline to connect two pipes of external threads? Reducer Coupling Cap Nipple 206. Which standard fitting is used for joining pipeline of different diameter? Plug Caps Reducer Coupling 207. Which is used to divert at 45°in pipeline? Elbow Coupling Reducer Branch 208. What is the radius size for the short radius elbow? 1 ½ time bore of the pipe Equal to bore of the pipe 3 time bore of the pipe 2 time bore of the pipe 209. What is the radius size for long radius elbow? Equal the bore the pipe 1 ½ times bore of the pipe 3 time bore of the pipe 2 times bore of the pipe 210. Which type of coupling is used on vehicle propeller shaft? Plate coupling Clamp coupling Slip type coupling Universal coupling 211. Where universal coupling is used? Automobile vehicles Textiles mills Engineering machines Large angle drive 212. Which valve is used to control flow and is only kept in either open or closed position? Gate valve Globe valve Needle valve Non-return valve 213. What is the pipe fitting? Caps Plug Coupling Reducer 214. What is the pipe fitting? Reducer Nipple Cap Plug 215. What is the pipe fitting of 90° and its branches may be equal in diameter? Tee joint Elbow joint Coupling joint Union joint 216. Which pipe fitting is used to divert the flow direction of pipe? Union Plug Elbow Coupling 217. What is the part marked as ‘x’? Pivot Spring Movable jaw Adjusting nut 218. What is the range of external pipe threads cut by pipe dies? ½” to 4” ¼” to 4” 1/8” to 2” ¼” to 6” 219. What is the minimum diameter of pipe used with chain wrench? 25 mm 50 mm 30 mm 45 mm 220. What is the type of wrench? footprint wrench strap wrench chain pipe wrench pipe wrench 221. What is the capacity of the pipe vice to hold pipes diameter in mm? 68 mm 65 mm 63 mm 72 mm 222. What is the name of part marked as X? Cutter wheel Adjusting screw Guide rollers Hand lever 223. Which type of wrench is used on finished tubular surface? Strap wrench Foot point wrench Chain pipe wrench Stillson pipe wrench 224. Which valve is used to permit fluid flow in one direction only? Plug-cock Needle valve Non-return valve Pressure regulator valve 225. What is the name of part marked as ‘X’ in water tap? Handle Bonnet Gland nut Valve seat 226. Where concentric reducer is used in pipeline? Vertical Horizontal Reduce the pressure Drive the flow direction 227. What is the type of visual pipe inspection at 30° angle between the plane of vision and surface? Direct visual testing Remote visual testing Translucent visual testing Transparent visual testing 228. What is the name of pipe line symbol? Socket Plug or cap Union screwed Reducer concentric 229. What is the name of the plumber tool to assemble or dismantle pipes of 50 mm to 150 mm diameter? Strap wrench Chain pipe wrench Stillson pipe wrench Foot point pipe wrench 230. Which type of pipe joint take branch at 90°? Coupling Tee branch Eccentric reducer Concentric reducer 231. What is the remedy if the spindle rotates continuously so that the gate valve is not closed? Replace the valve Tighten the gland nut Replace the worn out part Renew the gland packing 232. What is the name of part marked as ‘x Bonnet Packing Gland nut Shaft or spindle 233. What is the name of part marked as ‘x’ in the pipe joint? Outer pipe Hemp packing Tapered male thread Parallel female thread 234. Which type of wrench is used for more than 50 mm diameter pipe to tight with heavy gripping? Strap wrench Foot print wrench Chain pipe wrench Stillson pipe wrench 235. Which standard pipe fitting is used to close a pipe line having internal thread? Plug Cap Reducer Coupling 236. What is the name of the pipe fitting? Coupling Long nipple Eccentric reducer Concentric reducer 237. What is the name of the pipe fitting? Tee joint Eccentric reducer Reducer tee joint Concentric reducer 238. Which special file is used for narrow work? Pillar file Square file Dreadnought file Swiss pattern file 239. Why slots are provided in the slotted castle nuts? To fix split pins For good appearance Reduce the weight of nut For easy removal and fitment 240. What is the name of limit gauge? Plain ring gauge Taper plug gauge Progressive plug gauge Double ended plug gauge 241. What is the name of gauge? Ring gauge Plug gauge Taper ring gauge Taper plug gauge 242. Which gauge is used to check the gap between the mating parts? Slip gauge Plug gauge Feeler gauge Radius gauge 243. Which material is used to clean the slip gauge? Wax Kerosene Soluble oil Carbon tetrachloride 244. Which material is to wash off the lapping plate after charging? Oil Kerosene Coolant oil Petroleum jelly 245. Which material is used to protect slip gauge from rust? Oil Wax Kerosene Petroleum jelly 246. What is the name of the gauge? Plain snap gauge Thread snap gauge Thread pitch gauge Adjustable snap gauge 247. Which finishing process have a high degree of dimensional accuracy? Filing Turning Grinding Lapping 248. What is the method of surface hardening? Nitriding Case hardening Flame hardening Induction hardening 249. What is the name of the heat treatment process for reheating the hardened steel to a temperature below 400°C followed by cooling? Annealing Hardening Tempering Normalising 250. Why the tempering process carried out in steel? To add cutting ability To relieve strain and stress To refine the grain structure To regulate the hardness and toughness 251. What is the name of the key? Sunk key Feather key Flat saddle key 252. What is the name of key? Taper sunk key Flat saddle key Parallel sunk key Hollow saddle key 253. Which type of metal screws useful for self tapping on hard or brittle materials? Self piercing Thread cutting (C)Thread forming Hammer driven screw 254. What is the advantage of wing nut? In coach building work Heavy duty assembly work Loosen and tighten without wrench Provide decorative appearance 255. What is the name of gauge? Pitch gauge Angle gauge Feeler gauge Radius gauge 256. Which gauge is used to check the accuracy of an external thread? Snap gauge Thread ring gauge Thread plug gauge Centre gauge 257. What is the instrument used in measuring external diameter? Vernier caliper Outside caliper Parallel leg caliper Pair of special jaws by using slip gauge 258. Which bearing material has poor thermal conductivity? Nylon Teflon Sintered alloys Laminated phenolics 259. What is the name of washer? Internal type washer External type washer Internal and External washer Countersunk washer 260. What is the purpose of deep groove type of ball races provided in the ball bearing? To withstand shock To carry journal loads To withstand axial thrust To withstand radial load 261. Which alloying metal bearing can work at higher temperature and higher load carrying capacity? Cast iron White metal Copper lead alloys Cadmium based alloy 262. Why the double row roller bearing is used? To take axial load To take radial load To take heavy axial load To take heavy radial load 263. What is the method of metal coating? Cladding Sherardizing Galvanising Electroplating 264. What is the purpose of thrust ball bearing? Axial load Radial load Axial thrust load Vertical thrust load 265. Which metal is used in electroplating the metal surface to resist corrosion for long period and to retain high poilish? Lead Nickel Chromium Aluminium 266. Which metal protects corrosion resistant and does not crack or peel off due to temperature variation on coating? Zinc Nickel Copper Chromium 267. Which bearing material is used in connecting rod and electrical motors? White metal Sintered alloy Copper lead alloy 268. What is the operation of a metal coated with other metal to obtain protecting surface? Cladding Galvanising Cementation Electroplating 269. What is the name of part marked 'X'? Ball case Inner race outer race Ball separating gauge 270. Which metal powder is used in calorizing process to prevent corrosion? Zinc powder Nickel powder Chromium powder Aluminum powder 271. Which bearing material is used for light loading and low speed application? Cast iron Tin bronze Cadmium based alloy Copper and lead alloys 272. 273. What is the temperature required to process the chromizing for prevention of corrosion? 900 to 1100°C 1000 to 1100°C 1100 to 1200°C 1300 to 1400°C 274. Which metal has high resistance to chemical reaction? Lead Nickel Copper Aluminium 275. What is the disadvantage of thrust ball bearing? Cannot take any radial load Cannot take horizontal end thrust Cannot take load on both directions Cannot take any vertical thrust load 276. What is the name of bearing? Split bearing Bush bearing Solid bearing Journal bearing 277. Which type of bearing used for very heavy radial load? Ball bearing Bush bearing Needle bearing Double row roller bearing 278. What is the part marked as 'X' in the bearing? Outer race Ball cage Inner race Rolling elements 279. Which type of bearing metal is self lubricated? White metal Sintered alloy Aluminium alloy Cadmium based alloy 280. Which bearing is used in the limited space? Needle bearing Thrust ball bearing Taper roller bearing Angular contact ball bearing 281. What is the name
