Machine Design When a close coiled helical spring is compressed, its wire is subjected to Compression Tension Shear All of these Compression Tension Shear All of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design The process extensively used for making bolts and nuts is Extrusion Hot piercing Cold heading Cold peening Extrusion Hot piercing Cold heading Cold peening ANSWER DOWNLOAD EXAMIANS APP
Machine Design The steel pulleys are __________ in weight than cast iron pulleys of the same capacity. Heavier Lighter None of these Moderate Heavier Lighter None of these Moderate ANSWER DOWNLOAD EXAMIANS APP
Machine Design A screw is said to be a self locking screw, if its efficiency is More than 50% Less than 50% None of these Equal to 50% More than 50% Less than 50% None of these Equal to 50% 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 45° - φ/2 90° - φ 45° - φ 45° + φ/2 45° - φ/2 90° - φ 45° - φ ANSWER DOWNLOAD EXAMIANS APP
Machine Design A closely coiled helical spring is acted upon by an axial force. The maximum shear stress developed in the spring is τ. The half of the length of the spring if cut off and the remaining spring is acted upon by the same axial force. The maximum shear stress in the spring in new condition will be 4 τ 2 τ τ τ/2 4 τ 2 τ τ τ/2 ANSWER DOWNLOAD EXAMIANS APP
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