Machine Design When a hole of diameter ‘d’ is punched in a metal of thickness 't', then the force required to punch a hole is equal to (where τu = Ultimate shear strength of the material of the plate) π/4 × d².τu t.τu πd.t.τu π/4 × d² × tτu π/4 × d².τu t.τu πd.t.τu π/4 × d² × tτu ANSWER DOWNLOAD EXAMIANS APP
Machine Design For same pulley diameters, center distance, belt speed and belt and pulley materials, Crossed belt drive transmits more power than open belt drive Open and crossed belt drives transmit same power Open belt drive transmits more power than crossed belt drive Power transmission does not depend upon open and crossed types of constructions Crossed belt drive transmits more power than open belt drive Open and crossed belt drives transmit same power Open belt drive transmits more power than crossed belt drive Power transmission does not depend upon open and crossed types of constructions ANSWER DOWNLOAD EXAMIANS APP
Machine Design Stress concentration factor is defined as the ratio of Maximum stress to the endurance limit Maximum stress to the nominal stress Nominal stress to the maximum stress Nominal stress to the endurance limit Maximum stress to the endurance limit Maximum stress to the nominal stress Nominal stress to the maximum stress Nominal stress to the endurance limit ANSWER DOWNLOAD EXAMIANS APP
Machine Design The tension on the slack side of the belt is __________ the tension on the tight side of the belt. Greater than None of these Less than Equal to Greater than None of these Less than Equal to ANSWER DOWNLOAD EXAMIANS APP
Machine Design Lewis form factor for 14½° composite and full depth involute system is (where T = Number of teeth) 0.175 - (0.841/T) None of these 0.154 - (0.912/T) 0.124 - (0.684/T) 0.175 - (0.841/T) None of these 0.154 - (0.912/T) 0.124 - (0.684/T) ANSWER DOWNLOAD EXAMIANS APP
Machine Design In hydrostatic bearings 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 The Oil film pressure is generated only by the rotation of the journal Do not require external supply of lubricant ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS