Machine Design In hydrostatic bearings The Oil film pressure is generated only by the rotation of the journal Do not require external supply of lubricant The oil film is maintained by supplying oil under pressure Grease is used for lubrication The Oil film pressure is generated only by the rotation of the journal Do not require external supply of lubricant The oil film is maintained by supplying oil under pressure Grease is used for lubrication ANSWER DOWNLOAD EXAMIANS APP
Machine Design In block brakes, the ratio of shoe width to wheel diameter is taken between 0.75 and 1 0.25 and 0.50 0.1 and 0.25 0.50 and 0.75 0.75 and 1 0.25 and 0.50 0.1 and 0.25 0.50 and 0.75 ANSWER DOWNLOAD EXAMIANS APP
Machine Design The material used for brake lining should have __________ coefficient of friction. None of these Moderate Low High None of these Moderate Low High ANSWER DOWNLOAD EXAMIANS APP
Machine Design The process extensively used for making bolts and nuts is Extrusion Cold heading Hot piercing Cold peening Extrusion Cold heading Hot piercing Cold peening ANSWER DOWNLOAD EXAMIANS APP
Machine Design The anti-friction bearings Have low starting and low running friction at moderate speeds Can carry both radial and thrust loads Have high initial cost All of these Have low starting and low running friction at moderate speeds Can carry both radial and thrust loads Have high initial cost All of these 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 τ/2 2 τ 4 τ τ τ/2 2 τ 4 τ τ ANSWER DOWNLOAD EXAMIANS APP
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