Machine design pdf mcq ( objective Questions and answers ) are made precisely from the topics in content below:
CONTENT
INTRODUCTION:
INTERCHANGEABILITY AND LIMIT SYSTEM: Basic Size, Allowance, Interference, Limits, Tolerance, Fit, Basis of Limit System, The Indian Standard System of Limits and Fits.
POWER SCREWS AND THREADS: Bolt, Tap Bolt, Stud, Set-Screw.
STRESSES IN SCREWED FASTENING DUE TO STATIC LOADING: Tightening-up Stresses, Stresses Due to External Forces, Tensile Stress due to External Load, Shear Stress due to External LoaD, Combined Tensile and Shear Stress, Stresses Due to Initial Tension and Due to External Load, Eccentric Load on Bolted Joint.
DESIGN OF SHAFTS: Shafts in Pure Torsion, Shaft in Pure Bending, Shafts in Torsion and Bending.
VARIOUS THEORIES OF FAILURE: Maximum Shear Stress Theory or Guest Theory, Maximum Normal Stress Theory or Rankine’s Theory, Maximum Strain Theory, Materials for Shafts, Effect of Key Ways.
HOLLOW SHAFTS: Fatigue of Metals and Endurance Limit.
STRESS CONCENTRATION FACTOR:
RIVETED JOINTS: Lap Joint, Butt Joint, Types of Failures in Riveted Joints, Strength and Efficiency of a Riveted Joint, Design of Riveted Joints.
WELDED JOINTS: Strengths of Welds, Transverse Filled Weld.
KEYS AND COUPLINGS: Sunk Keys, Square sunk key, Gib head key, Feather key, Wood ruff key, Splines Shafts, Design of the Key, Shear failure of the key, Crushing failure of the key, Length of Key, Couplings, Design Procedure for Flange Coupling.
DESIGN OF COTTER JOINT AND KNUCKLE JOINT: Design of Knuckle Joint.
BELTS, ROPES AND CHAIN DRIVES: Open-Belt Drive, Cross-Belt Drive, Velocity Ratio, Slip of the Belt, Power Transmitted by a Belt, Centrifugal Tension, Maximum Power Transmitted by a Belt, Rope Drive, Chain Drive.
LUBRICANT: Liquid, Semi-liquid, Solid.
BEARINGS: Design of Journal Bearing, Bearing Characteristic Number, Bearing Modulus (K), Rolling Contact Bearing, Classification of Ball Bearings.
FRICTION CLUTCHES: Disc Clutches, Cone Clutch, Centrifugal Clutch, Pivot and Collar Bearing.
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