Machine Design A screw is said to be over hauling screw, if the Efficiency of screw is 100% Friction angle is more than helix angle Friction angle is less than helix angle Friction angle is equal to helix angle Efficiency of screw is 100% Friction angle is more than helix angle Friction angle is less than helix angle Friction angle is equal to helix angle ANSWER DOWNLOAD EXAMIANS APP
Machine Design The efficiency of a square threaded screw is maximum if the helix angle is equal to(Where φ = Angle of friction) 45° - φ/2 90° - φ 45° + φ/2 45° - φ 45° - φ/2 90° - φ 45° + φ/2 45° - φ ANSWER DOWNLOAD EXAMIANS APP
Machine Design Failure of a material is called fatigue when it fails Below the elastic limit Below the yield point At the elastic limit At the yield point Below the elastic limit Below the yield point At the elastic limit At the yield point ANSWER DOWNLOAD EXAMIANS APP
Machine Design A double strap butt joint (with equal straps) is Always in double shear Any one of these Either in single shear or double shear Always in single shear Always in double shear Any one of these Either in single shear or double shear Always in single shear ANSWER DOWNLOAD EXAMIANS APP
Machine Design The lower deviation is the algebraic difference between the Minimum limit and the basic size Maximum limit and the basic size Actual size and the corresponding basic size None of these Minimum limit and the basic size Maximum limit and the basic size Actual size and the corresponding basic size None of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design The resultant axial load on a bolt depends on All of these Initial tension External load applied Relative elastic yielding (springness) of the bolt and the connected member All of these Initial tension External load applied Relative elastic yielding (springness) of the bolt and the connected member ANSWER DOWNLOAD EXAMIANS APP
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