Machine Design For tight leakage joints, following type of thread is best suited Metric Buttress Square NPT (national pipe threads). Metric Buttress Square NPT (national pipe threads). ANSWER DOWNLOAD EXAMIANS APP
Machine Design The process extensively used for making bolts and nuts is Cold heading Cold peening Extrusion Hot piercing Cold heading Cold peening Extrusion Hot piercing ANSWER DOWNLOAD EXAMIANS APP
Machine Design The material commonly used for machine tool bodies is Aluminium Mild steel Brass Cast iron Aluminium Mild steel Brass Cast iron ANSWER DOWNLOAD EXAMIANS APP
Machine Design Two shafts will have equal strength, if Material of both the shafts is same Diameter of both the shafts is same Angle of twist of both the shafts is same Twisting moment of both the shafts is same Material of both the shafts is same Diameter of both the shafts is same Angle of twist of both the shafts is same Twisting moment of both the shafts is same ANSWER DOWNLOAD EXAMIANS APP
Machine Design The bending moment ‘M’ and a torque ‘T’ is applied on a solid circular shaft. If the maximum bending stress equals to maximum shear stress developed, then ‘M’ is equal to 2 T 1 T 4 T T/2 2 T 1 T 4 T T/2 ANSWER DOWNLOAD EXAMIANS APP
Machine Design In an oil lubricated journal bearing, the coefficient of friction between the journal and the bearing Is minimum at zero speed and increases monotonically with increase in speed Remains constant at all speeds Is maximum at zero speed and decreases monotonically with increase in speed Becomes minimum at an optimum speed and then increases with further increase in speed Is minimum at zero speed and increases monotonically with increase in speed Remains constant at all speeds Is maximum at zero speed and decreases monotonically with increase in speed Becomes minimum at an optimum speed and then increases with further increase in speed ANSWER DOWNLOAD EXAMIANS APP
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