Black Smith - Health Services 461/2016 Answer Key 56/2018

blacksmith hammering basket river

Post : Black Smith
Department : Health Services
Category Code : 461/16
Qualification : National Trade Certificate in Blacksmithy Trade + 5 year experience
Question Paper Code : 56/18
Date of Test : 30-04-2018




  1. The Furnace used to produce copper
    • Guilding furnace
    • Muntz furnace
    • Reverberatory furnace
    • Open hearth furnace

  2. The melting temperature range of gray cast iron
    • 1100°C – 1130°C
    • 1150°C – 1230°C
    • 1400°C – 1520°C
    • 960°C – 1010°C

  3. Austempering for iron done in
    • Open hearth forge
    • Salt bath furnace
    • Die castings
    • Induction furnace

  4. Instrument used for measuring furnace temperature
    • Pyrometer
    • Watch glass
    • Tachometer
    • Galvanometer

  5. In law carbon steel the carbon found in the form of
    • Graphite
    • Hematite
    • Pearlite
    • None of these

  6. The presence of which element makes an alloy easily machinable?
    • Chromium
    • Molybdenum
    • Cobalt
    • Silicon

  7. Tempering temperature of a cold chisel
    • 280°C
    • 230°C
    • 210°C
    • 430°C

  8. Tempering colour of turning tools
    • Purple
    • Palestraw
    • Brown
    • Blue

  9. Metal which cannot be used for any forging operations
    • Wrought iron
    • Aluminium alloy
    • Mild steel
    • Cast iron

  10. The percentage of iron contained in a magnetic iron ore
    • 85%
    • 65%
    • 53%
    • 45%

  11. The ultimate tensile strength of the metal
    • Toughness
    • Hardness
    • Tenacity
    • Elasticity

  12. Typical normalizing temperature for malleable iron
    • 970°C – 1120°C
    • 810°C – 870°C
    • 280°C – 310°C
    • 1200°C – 1280°C

  13. The tool used to put coal in fire pit
    • Poker
    • Dolly
    • Gouge
    • Swoop

  14. The property of metal to withstand sudden load
    • Stiffness
    • Hardness
    • Conductivity
    • Creep

  15. The ultimate tensile strength of cast iron
    • 120 to 300 Newton/sq mm
    • 60 to 95 Newton/ sq mm
    • 600 to 700 Newton/sq mm
    • 20 to 45 Newton/sq mm

  16. The temperature at preheating zone of a blast furnace
    • 360°C to 650°C
    • 700°C to 950°C
    • 200°C to 350°C
    • 110°C to 180°C

  17. Name the process that steel is heated to a certain temperature in zinc dust.
    • Cladding
    • Metal spraying
    • Anodising
    • Sherardizing

  18. The flux used in the production of pig iron from iron ore
    • Sal ammonia
    • Lime stone
    • Borax
    • Dry sand

  19. Least count of vernier micrometre
    • 0.02 mm
    • 0.001 mm
    • 0.04 mm
    • 0.02 inch

  20. The maximum furnace temperature in working chamber of a hearth furnace
    • 350°C
    • 120°C
    • 1100°C
    • 600°C

  21. The body of twist drill has a helical groove called
    • Shank
    • Heel
    • Lip
    • Flute

  22. Furnace used to produce wrought iron
    • Blast furnace
    • Cupola furnace
    • Puddling furnace
    • None of these

  23. The gas used for welding copper
    • Ammonia
    • Argon
    • Nitrogen
    • Helium

  24. The cutting angle of a hot chisel
    • 30°
    • 75°
    • 45°
    • 60°

  25. Setting down process done in a hot job, the thickness of job
    • Reduce
    • Smelt
    • Increase
    • None of these

  26. The melting point of lead
    • 260°C
    • 327°C
    • 483°C
    • 637°C

  27. The coating of zinc on ferrous metal by passing it through a bath of molten zinc
    • Diffusion
    • Anodising
    • Dip coating
    • Galvanising

  28. An electrical property of metal
    • Porosity
    • Corrosion resistance
    • Resistivity
    • Heat resistance

  29. The melting point of solder which composed 65% tin and 35% lead
    • 260°C
    • 203°C
    • 183°C
    • 168°C

  30. The tool used for external threading
    • Trammel
    • Dies
    • Tap
    • Groover

  31. Tempering temperature of forge sets
    • 230°C
    • 300°C
    • 270°C
    • 540°C

  32. The ability of metal to withstand scratching
    • Hardness
    • Elongation
    • Tenacity
    • Elasticity

  33. The flux used for forge welding purpose of cast steel
    • Clay
    • Rosin
    • Sodium chloride
    • Glass powder

  34. A mild steel heating for forge welding, it may heat upto a temperature of
    • 810°C
    • 1350°C
    • 960°C
    • 1440°C

  35. The tool used for necking down process in Smithy
    • Swages
    • Hotset
    • Flatter
    • Fuller

  36. The percentage of graphite carbon in pig iron
    • 3.5%
    • 0.03%
    • 9%
    • 1.5%

  37. During casting pig iron the chemical combination of carbon and iron in the form of
    • Cementite
    • Puddling
    • Graphite
    • None of these

  38. The undesirable property of snapping without warning known as
    • Hardness
    • Relative density
    • Brittleness
    • Ductility

  39. The average calorific value of peat
    • 8600 kilo calory/kg
    • 3600 kilo calory/kg
    • 4200 kilo calory/kg
    • 5500 kilo calory/kg

  40. The chisel used to cut holes in boiler plates
    • Firmer chisel
    • Diamond point chisel
    • Cross cut chisel
    • Flat Chisel

  41. Name the furnace used for heating the end of a steel bar.
    • Slot type furnace
    • Box type furnace
    • Continuous heat furnace
    • High frequency heat furnace

  42. Melting temperature of aluminium oxide
    • 428°C
    • 660°C
    • 1624°C
    • 1926°C

  43. A solid solution of ferrite and iron carbide in gamma iron
    • Cementite
    • Amorphous
    • Austenite
    • Sorbite

  44. Flux used for brazing
    • Sal ammonia
    • Borax
    • Dry sand
    • None of these

  45. Jumping operation applied in a hot workpiece to increase
    • Length
    • Diameter
    • Flatness
    • Hardness

  46. The melting point of Beryllium
    • 1486°C
    • 1160°C
    • 2470°C
    • 1283°C

  47. The heating colour for hardening alloy steel
    • Orange red
    • Black red
    • Yellow white
    • Bluish red

  48. Tool used for rounding operation while hand forging
    • Fuller
    • Flatter
    • Swages
    • Set hammer

  49. Point angle of Dot punch
    • 90°
    • 25°
    • 60°
    • 30°

  50. The temperature range of an optical pyrometer
    • 1200°C to 2300°C
    • 2210°C to 4400°C
    • 1400°C to 2600°C
    • 800°C to 4000°C

  51. Tool used to finish a hole in hot condition
    • Punch
    • Reamer
    • Gouge
    • Drift

  52. Element used for galvanising mild steel
    • Aluminium
    • Nickel
    • Zinc
    • Lead

  53. Temperature for hardening high speed steel
    • 1259°C
    • 815°C
    • 871°C
    • 1372°C

  54. Melting point of plutonium
    • 330°C
    • 640°C
    • 480°C
    • 1570°C

  55. Which metal is best for cold spinning process?
    • Stainless steel
    • Magnesium
    • Tin
    • Aluminium

  56. An example for metal joining process
    • Honing
    • Tumbling
    • Sintering
    • Scraping

  57. Annealing temperature of high carbon steel
    • 760°C to 780°C
    • 875°C to 925°C
    • 840°C to 910°C
    • 640°C to 730°C

  58. Process involves increasing the thickness of an iron rod
    • Swaging
    • Fullering
    • Upsetting
    • Setting down

  59. Tempering temperature of alloy tool steel
    • 820°C
    • 230°C
    • 360°C
    • 680°C

  60. Solid fuel contains more carbon and burns slowly while open forging
    • Anthracite coal
    • Ammonia gas
    • Wood
    • Charcoal

  61. Melting point of Tin
    • 323°C
    • 406°C
    • 232°C
    • 196°C

  62. Property of metal, change to thin wires
    • Ductility
    • Rigidity
    • Malleability
    • Brittleness

  63. Which element used to improve hardness of steel?
    • Copper
    • Aluminium
    • Zinc
    • Carbon

  64. Hardening temperature of high speed steel
    • 920°C
    • 1280°C
    • 1100°C
    • 610°C

  65. A die used in
    • Casting process
    • Forging process
    • Extrusion process
    • All of these

  66. The percentage of antimony in bearing metal
    • 10%
    • 15%
    • 3%
    • 4.8%

  67. Following operations which is related to Smithy
    • Arc welding
    • Forge welding
    • Casting
    • Drilling

  68. The point angle of a twist drill
    • 45°
    • 180°
    • 118°
    • 99°

  69. The alloy used to make automotive fittings
    • Zinc base alloy
    • Aluminium base alloy
    • Copper base alloy
    • Stainless steel base alloy

  70. Furnace used for smelting the ore to pig iron
    • Blast furnace
    • Salt bath furnace
    • Puddling furnace
    • Cupola furnace

  71. Melting point of cast iron
    • 1160°C
    • 2100°C
    • 1320°C
    • 890°C

  72. In Geometrical construction the angle less than 90° known as
    • Obtuse angle
    • Reflex angle
    • Acute angle
    • Right angle

  73. A cumulative effect of corrosive environment and static tensile strength on the metal
    • Recrystallisation
    • Season cracking
    • Distortion
    • Work hardening

  74. In Smithy section which hammer is commonly used?
    • Ball peen hammer
    • Cross peen hammer
    • Sledge hammer
    • Claw hammer

  75. The melting range of BS-1845-Type5-Silver solder
    • 640°C to 690°C
    • 700°C to 775°C
    • 310°C to 520°C
    • 920°C to 980°C

  76. The percentage of carbon in law carbon steel
    • 0.3% to 0.8%
    • 0.8% to 1.5%
    • 2% to 3.03%
    • 0.15% to 0.3%

  77. The amount of phosphorus added in a phosphor bronze
    • 15%
    • 0.15%
    • 0.95%
    • 0.5%

  78. The instrument used to find the centre of a circular job
    • Jenny caliper
    • Inside caliper
    • Try square
    • Outside caliper

  79. The electrolyte used for anodising process
    • Boric acid
    • Sulfuric acid
    • Cadmium
    • Hydrochloric acid

  80. A natural solid fuel
    • Charcoal
    • Ethane
    • Coke
    • Peat

  81. The constitutional writ issued to restrain a person from holding a public office to which he is not entitled
    • Quo Warranto
    • Certiorari
    • Habeas Corpus
    • Prohibition

  82. Which term is not related to democracy?
    • Consent
    • Accountability
    • Participation
    • Absolutism

  83. Maximum number of SC population in India is in which State?
    • Madhya Pradesh
    • Uttar Pradesh
    • Himachal Pradesh
    • Maharashtra

  84. The vacancy in the office of the President must be filled within
    • 90 days
    • 60 days
    • 6 months
    • One year

  85. Which Act established the post of Governor General in India?
    • Indian Councils Act, 1861
    • Indian Councils Act, 1893
    • Minto Morley Reforms, 1909
    • Regulating Act, 1773

  86. Father of Local Self Government in India
    • Lord Lytton
    • Lord Dalhousie
    • Lord Ripon
    • Lord Bentinck

  87. Maximum strength of Lok Sabha
    • 600
    • 552
    • 550
    • 500

  88. Who founded ‘Nizhal Thankals’ as worshipping centres for low caste people?
    • Vaikunta Swamikal
    • Thycaud Ayya
    • Vagbhatananda
    • Agamananda

  89. Early name of Brahmananda Sivayogi
    • Vayaleri Kunjikkannan
    • Ramakrishna Menon
    • Karattu Govindankutty
    • Thycaud Ayya

  90. Who was the author of “Kristhumatha Niroopanam”?
    • Sri Narayana Guru
    • Father Chavara
    • Francis Xavier
    • Chattampi Swamikal

  91. Founder of Advaitha Asramam in Aluva
    • Sri Narayana Guru
    • Chattampi Swamikal
    • Vagbhatananda
    • Agamananda

  92. The mouth piece of SNDP yogam was
    • Mangalodayam
    • Vivekodayam
    • Yogakshemam
    • Sujana Nandini

  93. Editor of the newspaper Mitavadi
    • T.K. Madhavan
    • C.Krishnan
    • C. Kesavan
    • C.V. Kunjuraman

  94. Who started the newspaper Ezhava Kaumudi?
    • C. Krishnan
    • C. Kesavan
    • C.V. Kunjuraman
    • R. Sankar

  95. Who was arrested after Kozhencherry speech?
    • C. Kesavan
    • C. Krishnan
    • T.K. Madhavan
    • G.P. Pillai

  96. Which poem of Kumaran Asan has the theme of intercaste marriage?
    • Chandala bhikshuki
    • Veena poovu
    • Prarodanam
    • Duravastha

  97. The author of the Sarcastic poem ‘Jatikkummi’
    • Pandit K.P. Karuppan
    • K.P. Vallon
    • Sri Narayana Guru
    • Sahodaran Ayyappan

  98. Who was the founder of Atmavidya Sangham?
    • Agamananda
    • Vagbhatananda
    • Vaikunta Swamikal
    • Thycaud Ayya

  99. Who started the newspaper ‘Velakkaran’?
    • Velukkutty Arayan
    • Charathan Solomon
    • Sahodaran Ayyappan
    • P.C. Chanchan

  100. Who wrote the drama ‘Adukkalayil Ninnum Arangathekku’?
    • Premji
    • MRB
    • EMS
    • V.T. Bhattathirippad

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