Mechanical Operator - Pharmaceutical Corporation (IM) Kerala Ltd 223/16 Answer Key 71/2017

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Post : Mechanical Operator
Department : Pharmaceutical Corporation (IM) Kerala Ltd
Category Code : 223/16
Qualification : SSLC + National trade certificate in the trade of Machinist or Fitter
Question Paper Code : 71/2017
Date of Test : 21-06-2017



  1. The teeth angle of a single cut file is :
    • 51 degree
    • 71 degree
    • 60 degree
    • 61 degree

  2. Which is not a purpose of annealing?
    • to relieve strain and stress
    • to add cutting ability
    • to eliminate strain and harness
    • to soften steel

  3. The file used for bringing the material closer to the finished size is :
    • Rough file
    • Rasp cut file
    • Dead smooth file
    • Second cut file

  4. The ratio of pitch circle diameter to the number of teeth of a spur gear is called :
    • circular pitch
    • addendum circle
    • land
    • module

  5. The purpose of clapper box in shaping machine is :
    • to lift the tool during return stroke
    • to hold the tool rigidly
    • for giving depth of cut
    • none of these

  6. A screw thread micrometer measures which portion of a screw thread?
    • major diameter of thread
    • depth of thread
    • core diameter of thread
    • pitch diameter of thread

  7. Device which holds, support, locates and guide the tool during cutting operation is :
    • fixture
    • jig
    • stopper
    • none of these

  8. Bearings made to take thrust from one direction are classifieds as :
    • needle bearing
    • roller bearing
    • tapered roller bearing
    • ball bearing

  9. Which type of caliper used for locating centre of round jobs?
    • leg and point caliper
    • outside caliper
    • spring joint caliper
    • inside caliper

  10. The part which is not essential for thread cutting operation in a centre lathe is :
    • lead screw
    • tailstock
    • change gear unit
    • half nut

  11. Point angle of general purpose twist drill is :
    • 120 degree
    • 45 degree
    • 119 degree
    • 118 degree

  12. Softest part of a hammerhead is known as :
    • cheek
    • face
    • pein
    • handle

  13. Device used for holding larger diameter taper shank drill to a machine spindle is known as :
    • drift
    • socket
    • chuck
    • sleeve

  14. What is the use of a cross cut chisel?
    • cutting keyways and grooves
    • corner squaring
    • for separating metals after chain drilling
    • none of these

  15. What is the least count of a metric outside vernier micrometer?
    • 0.01 mm
    • 0.02 mm
    • 0.001 mm
    • 0.002 mm

  16. Function of coolant in a metal cutting operation is :
    • to prevent corrosion
    • flush the chips from cutting edge
    • to carry away heat generated during cutting operation
    • all of these

  17. The process of shaping of the grinding wheel is known as :
    • dressing
    • truing
    • cleaning
    • loading

  18. How much is the least count of a vernier bevel protractor?
    • 5 minutes
    • 5 seconds
    • 1 minute
    • 1 degree

  19. Which process produces a flat seat for bolt head, washer or nut at the opening of a drilled hole?
    • chamfering
    • spot facing
    • counterboring
    • reaming

  20. For a three start thread pitch is equal to :
    • one third of the lead
    • three times the lead
    • half of the lead
    • equal to lead

  21. What is the included angle of a worm thread?
    • 60 degree
    • 55 degree
    • 45 degree
    • 29 degree

  22. Plug tap is used for :
    • making thread in a blind hole
    • for starting a thread
    • for making left hand thread
    • for making fine thread

  23. If a clearance fit is obtained in a hole basis system, the tolerance zone of the shaft must be :
    • above the tolerance zone of the hole
    • same as the tolerance zone of the hole
    • below the tolerance zone of the hole
    • above or equal to the tolerance zone of the hole

  24. Carbon content of cast iron ranges from :
    • 1 to 4 percentage
    • 0.8 to 1.5 percentage
    • 2 to 4 percentage
    • 0.8 to 3 percentage

  25. The jig generally used to drill a number of holes on a component from different angles is :
    • sandwich jig
    • box jig
    • table jig
    • post jig

  26. Which is not an advantage of taper turning by attachment?
    • both internal and external tapers can be produced
    • power feed can be given
    • large angle tapers can be produced
    • threads on taper portion can be produced

  27. The process of dividing the periphery of a workpiece into any number of equal parts is known as :
    • peripheral milling
    • parting off
    • knurling
    • indexing

  28. The slope between front of the cutting edge to a line perpendicular to the axis of the tool drawn downwards is :
    • relief angle
    • rake angle
    • clearance angle
    • point angle

  29. The bearing surface angle of a centre drill is :
    • 60 degree
    • 120 degree
    • 45 degree
    • 30 degree

  30. White metal is an alloy of :
    • copper, tin and zinc
    • copper and zinc
    • tin, copper and antimony
    • copper and tin

  31. When the angle between the shaft is 90 degree and two gears of a pair are equal, they are called :
    • spur gear
    • spiral gear
    • helical gear
    • mitre gear

  32. The method of removing metal by pushing or pulling an elongated cutting tool with a number of teeth in though hole or along a surface is known as :
    • broaching
    • boring
    • lapping
    • hobbing

  33. The grinding or abrading process mostly used for finishing round holes with the help of bonded abrasive stone is called :
    • lapping
    • buffing
    • honing
    • hot dipping

  34. The advantage of centerless grinder is :
    • the workpiece being supported throughout its length
    • no centre holes is required
    • the size of workpiece is easily controlled
    • all of these

  35. The perpendicular distance measured from the machined surface to unmachined surface is called :
    • feed
    • depth of cut
    • chamfer
    • taper

  36. The device used for holding and rotating a hollow workpiece that has been previously drilled is :
    • mandrel
    • collet
    • driving plate
    • centre

  37. The operation of machining several surfaces of a workpiece simultaneously by feeding table against a number of cutters is known as :
    • straddle milling
    • profile milling
    • saw milling
    • gang milling

  38. Which of the heat treatment gives a scale free surface to the component?
    • flame hardening
    • nitriding
    • induction hardening
    • tempering

  39. Which is not an essential property of a good lubricant?
    • viscosity
    • adhesiveness
    • oiliness
    • flashpoint

  40. Which is not a part of center lathe?
    • Carriage
    • Cross rail
    • Apron
    • Bed

  41. Accuracy of inside micrometer is ______ .
    • 0.01 mm
    • 0.01 cm
    • 0.001 mm
    • 0.02 mm

  42. Example of non ferrous tool materials is ______ .
    • Tungsten
    • High speed steel
    • Ceramic
    • High carbon steel

  43. The chemical symbol of Acetylene gas is ______ .
    • C2H2
    • H2SO
    • H2F
    • H2F2

  44. ______ files is used in causes where a heavy reduction of materials is required.
    • Smooth file
    • Second cut file
    • Rough file
    • Bastard file

  45. The size of the bench vice is stated by ______ .
    • Overall length
    • Length of jaw
    • Width of jaw
    • Moving length of jaw

  46. Try squares are specified by ______ .
    • Length of stock
    • Length of blade
    • Width of stock
    • Width of blade

  47. One micrometer is equal to ______ .
    • 100 mm
    • 0.001 mm
    • 0.0001 mm
    • 0.01 mm

  48. Steel rules are made of ______ .
    • Stainless steel
    • High carbon steel
    • High speed steel
    • All of these

  49. Jenny caliper also called ______ .
    • Outside caliper
    • Vernier Caliper
    • Firm joint calipers
    • Hermaphrodite caliper

  50. The angle of the point of centre punch is ______ .
    • 60°
    • 30°
    • 45°
    • 90°

  51. The accuracy of bevel protractor is ______ .
    • ±1°
    • ±0.5°
    • 5”
    • 5'

  52. Standard length of hacksaw blade is ______ .
    • 100 mm
    • 300 mm
    • 200 mm
    • 400 mm

  53. For cutting high speed steel ______ mm pitch hacksaw blade is used.
    • 1.8 mm
    • 0.8 mm
    • 1 mm
    • 1.4 mm

  54. ______ chisel is used for squaring materials at the corner, joints.
    • Web chisel
    • Diamond point chisel
    • Cross cut chisel
    • Flat chisel

  55. The weight of an engineer hammer used for marking purposes is ______ .
    • 250 gram
    • 500 gram
    • 125 gram
    • 750 gram

  56. Current range of 5 mm diameter electrode size is ______ .
    • 40 - 60 A
    • 90 - 130 A
    • 130 - 270 A
    • 60 - 80 A

  57. ______ property is a measure of metals ability to withstand scratching, wear, abrasion.
    • Malleability
    • Hardness
    • Brittleness
    • Tenacity

  58. The shape of woodruff key is ______ .
    • Rectangular
    • Square
    • Round
    • Half round

  59. The purpose of annealing is ______ .
    • To add cutting ability
    • To soften the steel
    • To refine the structure of the steel
    • To induce toughness

  60. The difference between maximum limit of size to its corresponding basic size of a component is ______ .
    • Actual deviation
    • Tolerance
    • Upper deviation
    • Clearance

  61. If the plug gauge have Go and No Go same side then it is called ______ .
    • Progressive plug gauge
    • Double ended plug gauge
    • Taper ring plug gauge
    • Thread plug gauge

  62. A steel which contains just 0.8% carbon then it is called ______ .
    • Hypo eutectoid steel
    • Eutectoid steel
    • Hyper eutectoid steel
    • Plain carbon steel

  63. High carbon steel contain ______ % of carbon.
    • 0.3 to 0.8
    • 0.1 to 1.5
    • 0.8 to 1.4
    • 0.15 to 0.3

  64. At the time of arc welding ______ is used to protect the body.
    • Dankry
    • Coat
    • Glass
    • Apron

  65. Which machine is used to convert the AC main supply into an AC welding supply?
    • AC welding transformer
    • DC welding transformer
    • Rectifier
    • Motor generator set

  66. Zinc coated iron is known as ______ .
    • Black iron
    • Galvanized iron
    • Stainless steel
    • Wrought iron

  67. The most commonly used rivet head is ______ .
    • Pan head
    • Countersunk head
    • Conical head
    • Snap head

  68. ______ is the lower critical temperature for plain carbon steel.
    • 723°C
    • 750°C
    • 900°C
    • 695°C

  69. ______ are used to produce internal threads.
    • Die
    • Chaser
    • Thread roller
    • Tap

  70. ______ is a forming operation in a lathe.
    • Turning
    • Facing
    • Knurling
    • Threading

  71. What is the grade of angle plate used for general machine shop work?
    • Grade 1
    • Grade 2
    • Grade 3
    • Grade 0

  72. Density of steel is ______ .
    • 7.85 gm/cm2
    • 8.85 gm/cm2
    • 7.75 gm/cm2
    • 7.55 gm/cm2

  73. The point angle of a chisel for chipping cast iron is ______ .
    • 55°
    • 37.5°
    • 60°
    • 65°

  74. What is the correct tap drill size for tapping M10?
    • 8.5 mm
    • 7.5 mm
    • 9 mm
    • 10 mm

  75. The purpose of ______ is to restore the correct cutting action of the grinding wheel.
    • Loading
    • Glazing
    • Dressing
    • Truing

  76. ______ is the difference between the maximum limit of size and the minimum size of limit.
    • Deviation
    • Size
    • Tolerance
    • Clearance

  77. The No : 80 drill means ______ mm.
    • 5.791
    • 3.264
    • 1.016
    • 0.35

  78. What is the formula for finding the spindle speed of a lathe?
    • πDN/1000
    • Cs*1000/πD
    • πD/1000*Cs
    • 100*Cs/πD

  79. The abrasive used for honing of non ferrous metal is ______ .
    • Diamond
    • Boron carbide
    • Aluminium oxide
    • Silicon carbide

  80. Tempering temperature of screw driver is ______ .
    • 230°C
    • 280°C
    • 320°C
    • 250°C

  81. How many times the Preamble of Indian Constitution amended?
    • 1
    • 2
    • 3
    • Not amended

  82. Article 17 of Indian Constitution refers to ______ .
    • Equality before law
    • Freedom of expression
    • Abolition of untouchability
    • Right against exploitation

  83. Food Security Act was passed in the year ______ .
    • 1991
    • 2001
    • 2011
    • 2013

  84. In 1836 Vaikunta Swamikal founded the Samathwa Samajam at ______ .
    • Thiruvananthapuram
    • Suchindram
    • Kannamula
    • Varkala

  85. Who was the first Vice President of SNDP Yogam?
    • Dr. Palpu
    • Sri Narayanaguru
    • Kumaranasan
    • None of these

  86. Guruvayur Satyagraha started on ______ .
    • 1st October, 1931
    • 1st November, 1931
    • 1st December, 1931
    • 31st December, 1931

  87. The basic philosophy of the Indian Constitution can be found in the ______ .
    • Preamble
    • Fundamental Rights
    • Directive Principles
    • Fundamental Duties

  88. Who wrote the book Kairaleekauthukam?
    • Thycaud Ayya
    • Pandit Karuppan
    • Ayyankali
    • Sahodaran Ayyappan

  89. Adam’s Peak is located in ______ .
    • Syria
    • India
    • Iran
    • Srilanka

  90. Which among the following is the smallest state in India?
    • Sikkim
    • Goa
    • Tripura
    • Manipur

  91. D. Udayakumar, who created the symbol of Rupee is from ______ .
    • Karnataka
    • Andhra Pradesh
    • Telangana
    • Tamil Nadu

  92. Who among the following started the publication Yukthivadi in 1928?
    • Sahodaran Ayyappan
    • Vakkom Moulavi
    • Pandit Karuppan
    • Ayyankali

  93. Chandu Menon’s novel Sarada illustrates ______ .
    • the craze for English education
    • the craze for womens freedom
    • the craze for political power
    • the craze for litigation

  94. Who wrote the novel Manninte Maril?
    • O.V. Vijayan
    • C. Radhakrishnan
    • Cherukad
    • G. Vivekanandan

  95. Kumaranasan got immortal fame as a great poet or Mahakavi for his ______ .
    • Veenapoovu
    • Nalini
    • Lila
    • Prarodanam

  96. The credit for having laid the foundations of western education in the Malabar area goes to______ .
    • C.M.S.
    • L.M.S.
    • B.E.M.
    • None of these

  97. Virat Kohli scored his fourth consecutive double century in test cricket format against______ .
    • England
    • West Indies
    • New Zealand
    • Bangladesh

  98. Wagon tragedy took place on ______ .
    • 20th August, 1920
    • 20th November, 1920
    • 20th August, 1921
    • 20th November, 1921

  99. Who among the following met with a tragic death in the police lathi charge on the 100th day of Paliyam Satyagraha?
    • A.G. Velayudhan
    • A.K. Gopalan
    • P. Krishna Pillai
    • A.K. Velayudhan

  100. Schedule 1 of Indian Constitution refers to ______ .
    • Division of powers between Union and States
    • Anti defection laws
    • India and it’s States
    • Languages of India and it’s States

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