Railways NTPC (Technical Ability) Production Engineering and Planning Question Bank

done Production Engineering Total Questions - 50

• question_answer1)
  In braze welding, the tiller metal is
  A)
   distributed by capillary attraction done clear
  B)
   melted and deposited at the point where the weld is to be made done clear
  C)
   both of the above done clear
  D)
   not required done clear
  View Solution play_arrow

• question_answer2)
  The cutting tool used in the spark erosion machining process is called
  A)
   arc                               done clear
  B)
   capacitor done clear
  C)
   electrode           done clear
  D)
   dielectric done clear
  View Solution play_arrow

• question_answer3)
  Sweep pattern is used for moulding parts having
  A)
   rectangular shape done clear
  B)
   elliptical shape done clear
  C)
   uniform symmetrical shape done clear
  D)
   complicated shape having intricate details done clear
  View Solution play_arrow

• question_answer4)
  T-joint weld is used
  A)
   where longitudinal shear is present done clear
  B)
   where severe loading is encountered and the upper surface of both pieces must be in the same plane done clear
  C)
   to join two pieces of metal in the same manner as rivet joint metals done clear
  D)
   to join two pieces perpendicularly done clear
  View Solution play_arrow

• question_answer5)
  The number of helical groves which are present in a standard twist drill is usually
  A)
   one                              done clear
  B)
   two done clear
  C)
   three                            done clear
  D)
   four done clear
  View Solution play_arrow

• question_answer6)
  The electrodes used in the electro-chemical machining process must be made of
  A)
   semi-conductor done clear
  B)
   an anodic material done clear
  C)
    a dielectric done clear
  D)
   an electrically conducting material done clear
  View Solution play_arrow

• question_answer7)
  Gray iron is usually welded by
  A)
   gas welding                   done clear
  B)
   arc welding done clear
  C)
   resistance welding           done clear
  D)
   TIG welding done clear
  View Solution play_arrow

• question_answer8)
  Core prints are used to
  A)
   strengthen core done clear
  B)
   form seat to support and hold the core in place done clear
  C)
   fabricate core done clear
  D)
   All of the above done clear
  View Solution play_arrow

• question_answer9)
  The machining process in which the metal of a work piece is dissolved into an electrolyte solution is called
  A)
   electro-discharge machining done clear
  B)
   ultrasonic machining done clear
  C)
   electro-chemical machining done clear
  D)
   chemical machining done clear
  View Solution play_arrow

• question_answer10)
  Which of the following machines does not require quick return mechanism
  A)
   Slotter              done clear
  B)
   Planer done clear
  C)
   Shaper             done clear
  D)
   Broaching done clear
  View Solution play_arrow

• question_answer11)
  The operation of removing the burr or flash from the forged parts in drop forging is known as
  A)
   lancing             done clear
  B)
   trimming done clear
  C)
   coining             done clear
  D)
   shot peening done clear
  View Solution play_arrow

• question_answer12)
  Rotary swaging is used for
  A)
   manufacturing bolts and rivets done clear
  B)
   manufacturing seamless tubes done clear
  C)
   improving fatigue resistance done clear
  D)
   reducing diameter of round bars and tubes by rotating die which open and close rapidly on the work done clear
  View Solution play_arrow

• question_answer13)
  V-block is used in the workshop to check
  A)
   roundness of a cylindrical work done clear
  B)
   surface roughness done clear
  C)
   dimensions of oval job done clear
  D)
   taper on a job done clear
  View Solution play_arrow

• question_answer14)
  The following flux is used for brazing cast iron
  A)
   mixture of boric acid, borax and wetting agent done clear
  B)
   boric acid, borax or fluoride with a wetting agent done clear
  C)
   chlorides and fluorides mixed with water done clear
  D)
   All of the above done clear
  View Solution play_arrow

• question_answer15)
  Investment casting is used for
  A)
   shapes which are made by difficulty using complex patterns in sand casting done clear
  B)
   mass production done clear
  C)
   shapes which are very complex and intricate and can't be cast by any other method done clear
  D)
   None of the above done clear
  View Solution play_arrow

• question_answer16)
  Hot tear refers to
  A)
   casting defect done clear
  B)
   process of fabrication done clear
  C)
   process of heat treatment done clear
  D)
   weathering of non-ferrous materials done clear
  View Solution play_arrow

• question_answer17)
  External taper can be accurately measured with the help of
  A)
   sine bar and slip gauges done clear
  B)
   dividing head done clear
  C)
   precision balls and height gauge done clear
  D)
   combination set done clear
  View Solution play_arrow

• question_answer18)
  The phenomenon of weld decay occurs in
  A)
   cast iron                       done clear
  B)
   brass done clear
  C)
   bronze              done clear
  D)
   stainless steel done clear
  View Solution play_arrow

• question_answer19)
  Coining is the operation of
  A)
   cold forging                   done clear
  B)
   hot forging done clear
  C)
   cold extrusion    done clear
  D)
   piercing done clear
  View Solution play_arrow

• question_answer20)
  The purpose of using flux in soldering is to
  A)
   increase fluidity of solder metal done clear
  B)
   fill up gaps left in a bad joint done clear
  C)
   prevent oxides forming done clear
  D)
   lower the melting temperature of the solder done clear
  View Solution play_arrow

• question_answer21)
  The metal in machining operation is removed by
  A)
   tearing chips done clear
  B)
   distortion of metal done clear
  C)
   shearing the metal across a zone done clear
  D)
   pushing the metal with tool done clear
  View Solution play_arrow

• question_answer22)
  Carburising flame is used to weld metals like
  A)
   steel done clear
  B)
   copper and brass done clear
  C)
   aluminium, stainless steel, zinc die castings, nickel, monel etc. done clear
  D)
   carburised steel done clear
  View Solution play_arrow

• question_answer23)
  Approximate content of Vanadium in H.S.S. cutting tool material is
  A)
   16%                             done clear
  B)
   4% done clear
  C)
   0.1%                done clear
  D)
   1% done clear
  View Solution play_arrow

• question_answer24)
  The melting point 01 the tiller metal in brazing should be above
  A)
   \[420{}^\circ C\]                      done clear
  B)
   \[600{}^\circ C\] done clear
  C)
   \[800{}^\circ C\]                      done clear
  D)
   \[900{}^\circ C\] done clear
  View Solution play_arrow

• question_answer25)
  Chilled surfaces are marked on the pattern by
  A)
   oblique red strips done clear
  B)
   yellow cross strips done clear
  C)
   black cross strips on yellow done clear
  D)
   oblique red strips on yellow done clear
  View Solution play_arrow

• question_answer26)
  Arc stability is better with :
  A)
   AC welding                   done clear
  B)
   DC welding done clear
  C)
   Both [a] and [b] done clear
  D)
   None of these done clear
  View Solution play_arrow

• question_answer27)
  The material used for coating the electrode:
  A)
   Protective layer  done clear
  B)
   Blinder done clear
  C)
   De-oxidiser                    done clear
  D)
   Flux done clear
  View Solution play_arrow

• question_answer28)
  In oxy-acetylene welding:
  A)
   Pressure is applied done clear
  B)
   Filler metal is applied done clear
  C)
   Both Pressure and filler metal arc applied done clear
  D)
   Neither pressure, nor filler metal is applied done clear
  View Solution play_arrow

• question_answer29)
  Welding process in which two pieces to be joined are over leaped and placed between two electrodes in known as:
  A)
   percussion welding          done clear
  B)
   spot welding done clear
  C)
   seam welding                 done clear
  D)
   projection welding done clear
  View Solution play_arrow

• question_answer30)
  T ? joint weld is used:
  A)
   where longitudinal shear is present done clear
  B)
   where sever loading is encountered and the upper surface of both piece must be the same plane done clear
  C)
   To joint two pieces of metal in the same manner as rivet joint metals done clear
  D)
   To join two pieces perpendicularly done clear
  View Solution play_arrow

• question_answer31)
  Electronic components are often joined by:
  A)
   soldering                       done clear
  B)
   brazing done clear
  C)
   welding             done clear
  D)
   adhesive done clear
  View Solution play_arrow

• question_answer32)
  Which one of the following is a single point cutting tool?
  A)
   hack saw blade  done clear
  B)
   milling cutler done clear
  C)
   pasting tool                   done clear
  D)
   grinding wheel done clear
  View Solution play_arrow

• question_answer33)
  The lip angle of a single point cutting tool is;
  A)
   \[10{}^\circ C-30{}^\circ C\]                done clear
  B)
   \[30{}^\circ C-60{}^\circ C\] done clear
  C)
   \[50{}^\circ C-60{}^\circ C\]                done clear
  D)
   \[60{}^\circ C-80{}^\circ C\] done clear
  View Solution play_arrow

• question_answer34)
  Which of the following among the given options is a single point cutting tool?
  A)
   Milling cutter                 done clear
  B)
   Hack saw blade done clear
  C)
   Turning tool                  done clear
  D)
   Grinding wheel done clear
  View Solution play_arrow

• question_answer35)
  Which of the following is not a type of industrial forging?
  A)
   Drop forging                  done clear
  B)
   Roll forging done clear
  C)
   Blast forging                  done clear
  D)
   upset forging done clear
  View Solution play_arrow

• question_answer36)
  Which of the following is commonly used die material?
  A)
   Tungsten                       done clear
  B)
   Molybdenum done clear
  C)
   Cast iron                       done clear
  D)
   Hot work tool steel done clear
  View Solution play_arrow

• question_answer37)
  In a drilling machine the metal is removed by:
  A)
   shearing and extrusion done clear
  B)
   Extrusion done clear
  C)
   Shearing done clear
  D)
   shearing and compression done clear
  View Solution play_arrow

• question_answer38)
  Which is not the part of drilling machine
  A)
   Spindle             done clear
  B)
   Tool holder done clear
  C)
   Table               done clear
  D)
   Cross-slide done clear
  View Solution play_arrow

• question_answer39)
  On high rate of cooling, austenite converts into:
  A)
   martensite                     done clear
  B)
   Ferrite done clear
  C)
   Ledeburite                     done clear
  D)
   Pearlite done clear
  View Solution play_arrow

• question_answer40)
  The crystal structure of austenite is:
  A)
   Simple cubic (SC) done clear
  B)
   Body centred cubic (BCC) done clear
  C)
   Face centered cubic (FCC) done clear
  D)
   Hexagonal closed packed (HCP) done clear
  View Solution play_arrow

• question_answer41)
  Alloy steel as compared carbon steel is more
  A)
   strong               done clear
  B)
   tough done clear
  C)
   fatigue resistant  done clear
  D)
   All of these done clear
  View Solution play_arrow

• question_answer42)
  The raise yield point of low carbon steel
  A)
   Phosphorus is added       done clear
  B)
   Silicon is added done clear
  C)
   Carbon is added done clear
  D)
   Sulphur is added done clear
  View Solution play_arrow

• question_answer43)
  Ability of material to under go large permanent deformations in tension is called
  A)
   plasticity                       done clear
  B)
   stifmess done clear
  C)
   toughness                      done clear
  D)
   hardness done clear
  View Solution play_arrow

• question_answer44)
  Shock resistance steel should have
  A)
   high wear resistance        done clear
  B)
   low wear resistance done clear
  C)
   toughness                      done clear
  D)
   low hardness done clear
  View Solution play_arrow

• question_answer45)
  Chrome steel is widely used for
  A)
   connecting rod   done clear
  B)
   cutting tool done clear
  C)
   hand tool                      done clear
  D)
   motor car crank shift done clear
  View Solution play_arrow

• question_answer46)
  Carbon steel castings are
  A)
   easily weld able done clear
  B)
   tough and ductile done clear
  C)
   brittle               done clear
  D)
   All of these done clear
  View Solution play_arrow

• question_answer47)
  High speed steel should have
  A)
   wear resistance  done clear
  B)
   hardness done clear
  C)
   toughness                      done clear
  D)
   both [a] and [b] done clear
  View Solution play_arrow

• question_answer48)
  Steel containing peariite and ferrite is
  A)
   ductile              done clear
  B)
   soft done clear
  C)
   hard                             done clear
  D)
   tough done clear
  View Solution play_arrow

• question_answer49)
  Cutting tools are manufactured by
  A)
   High speed steel done clear
  B)
   Nickel steel done clear
  C)
   Chorme steel                 done clear
  D)
   None of these done clear
  View Solution play_arrow

• question_answer50)
  Hardness of Steel depends on
  A)
   Carbon percentage done clear
  B)
   Silicon percentage done clear
  C)
   Shape and distribution of carbide in iron done clear
  D)
   None of these done clear
  View Solution play_arrow