Machine Assembly Round 1

25 Questions | Total Attempts: 43

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Machine Assembly Round 1

AGRONA 2K15INSTRUCTIONS:ALL QUESTIONS ARE MULTIPLE CHOICE QUESTIONONCE ANSWER SELECTED IT CAN'T BE CHANGETIME DURATION:20 MINUTESDON'T CLOSE THE RESULT PAGE,IF CLOSED YOU WILL BE DISQUALIFIEDAFTER COMPLETION INFORM IMMEDIATELY TO THE CO-ORDINATORS   ; &nbs p; &nb sp; &n bsp; ALL THE BEST


Questions and Answers
  • 1. 
    The bearings of heavy series have capacity __________ over the medium series.
    • A. 

      10 to 20%

    • B. 

      20 to 30%

    • C. 

      30 to 40%

    • D. 

      40 to 50%

  • 2. 
    The size of a gear is usually specified by
    • A. 

      Pressure angle

    • B. 

      Pitch circle diameter

    • C. 

      Circular pitch

    • D. 

      Diametral pitch

  • 3. 
    The backlash for spur gears depends upon
    • A. 

      Module

    • B. 

      Pitch line velocity

    • C. 

      Tooth profile

    • D. 

      Both (a) and (b)

  • 4. 
    The rolling contact bearings are known as
    • A. 

      Thick lubricated bearings

    • B. 

      Plastic bearings

    • C. 

      Thin lubricated bearings

    • D. 

      Antifriction bearings

  • 5. 
    Tapered roller bearings can take
    • A. 

      Radial load only

    • B. 

      Axial load only

    • C. 

      Both radial and axial loads and the ratio of these being less than unity

    • D. 

      Both radial and axial loads and the ratio of these being greater than unity

  • 6. 
    In order to remove internal stresses produced by hardening the steel, the process usually adopted is
    • A. 

      Tempering

    • B. 

      Annealing

    • C. 

      Normalising

    • D. 

      Spheroidising

  • 7. 
    The rivet head used for boiler plate riveting is usually
    • A. 

      Snap head

    • B. 

      Pan head

    • C. 

      Counter sunk head

    • D. 

      Conical head

  • 8. 
    A localised compressive stress at the area of contact between two members is known as
    • A. 

      Tensile stress

    • B. 

      Bending stress

    • C. 

      Bearing stress

    • D. 

      Shear stress

  • 9. 
    The metal suitable for bearings subjected to heavy loads is
    • A. 

      Silicon bronze

    • B. 

      White metal

    • C. 

      Monel metal

    • D. 

      Phosphor bronze

  • 10. 
    An universal coupling is used to connect two shafts
    • A. 

      Which are perfectly aligned

    • B. 

      Which are not in exact alignment

    • C. 

      Have lateral misalignment

    • D. 

      Whose axes intersect at a small angle\

  • 11. 
    When the shaft rotates in anticlockwise direction at slow speed in a bearing, it will
    • A. 

      Have contact at the bottom most of the bearing

    • B. 

      Move towards right of the bearing making the metal to metal contact

    • C. 

      Move towards right of the bearing making no metal to metal contact

    • D. 

      Move towards left of the bearing making metal to metal contact

  • 12. 
    A taper key which fits half in the key way of the hub and half in the key way of shaft, is known as
    • A. 

      Sunk key

    • B. 

      Flat saddle key

    • C. 

      Hollow saddle key

    • D. 

      Tangent key

  • 13. 
    When bevel gears having equal teeth and equal pitch angles connect two shafts whose axes intersect at right angle, then they are known as
    • A. 

      Angular bevel gears

    • B. 

      Crown bevel gears

    • C. 

      Internal bevel gears

    • D. 

      Mitre gears

  • 14. 
    In case of pressure vessels having closed ends, the fluid pressure induces
    • A. 

      Longitudinal stress

    • B. 

      Circumferential stress

    • C. 

      Shear stress

    • D. 

      None of these

  • 15. 
    A machine part subjected to __________ is called a strut.
    • A. 

      An axial tensile force

    • B. 

      An axial compressive force

    • C. 

      A tangential force

    • D. 

      Any one of these

  • 16. 
    The yield point in static loading is __________ as compared to fatigue loading.
    • A. 

      Higher

    • B. 

      Lower

    • C. 

      Same

    • D. 

      Option 4

  • 17. 
    Which of the following property is desirable in parts subjected to shock and impact loads?
    • A. 

      Strength

    • B. 

      Stiffness

    • C. 

      Brittleness

    • D. 

      Toughness

  • 18. 
    Pitch point of a cam is
    • A. 

      A point on the pitch curve having minimum pressure angle

    • B. 

      A point on the pitch curve having maximum pressure angle

    • C. 

      Any point on the pitch curve

    • D. 

      Any point on the pitch circle

  • 19. 
    A screw is specified by its
    • A. 

      Major diameter

    • B. 

      Minor diameter

    • C. 

      Pitch diameter

    • D. 

      Pitch

  • 20. 
    Antifriction bearings are
    • A. 

      Thick lubricated bearings

    • B. 

      Plastic bearings

    • C. 

      Thin lubricated bearings

    • D. 

      Ball and roller bearings

  • 21. 
    A special case of ductility which permits materials to be rolled or hammered into thin sheets, is called
    • A. 

      Plasticity

    • B. 

      Elasticity

    • C. 

      Ductility

    • D. 

      Malleability

  • 22. 
    Which of the following welded joint is designed for shear strength ?
    • A. 

      Transverse fillet welded joint

    • B. 

      Parallel fillet welded joint

    • C. 

      Butt welded joint

    • D. 

      All of these

  • 23. 
    The material commonly used for crane hooks is
    • A. 

      Cast iron

    • B. 

      Wrought iron

    • C. 

      Mild steel

    • D. 

      Aluminium

  • 24. 
    In a steam engine, the valve rod is connected to an eccentric rod by means of
    • A. 

      Cotter joint

    • B. 

      Knuckle joint

    • C. 

      Universal joint

    • D. 

      Flange coupling

  • 25. 
    Which of the following formula is used in designing a connecting rod ?
    • A. 

      Euler's formula

    • B. 

      Rankine's formula

    • C. 

      Johnson's straight line formula

    • D. 

      Johnson's parabolic formula