Machine Design In an oil lubricated journal bearing, the coefficient of friction between the journal and the bearing 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 Is minimum at zero speed and increases monotonically with increase in speed ANSWER DOWNLOAD EXAMIANS APP
Machine Design According to Unwin's formula, the relation between the diameter of rivet hole (d) and the thickness of plate (t) is given by (where d and t are in mm) d = 2√t d = √t d = 6√t d = 1.6√t d = 2√t d = √t d = 6√t d = 1.6√t ANSWER DOWNLOAD EXAMIANS APP
Machine Design An elastic bar is fixed at the upper end and loaded at the lower end by a falling weight. The shock load produced can be reduced by Decreasing the cross-sectional area of the bar All of these Increasing the length of bar Decreasing the modulus of elasticity of the bar Decreasing the cross-sectional area of the bar All of these Increasing the length of bar Decreasing the modulus of elasticity of the bar ANSWER DOWNLOAD EXAMIANS APP
Machine Design In the levers of third type, the mechanical advantage is __________ one. More than None of these Less than Equal to More than None of these Less than Equal to ANSWER DOWNLOAD EXAMIANS APP
Machine Design If a material fails below its yield point, failure would be due to Straining Fatigue Creep Sudden loading Straining Fatigue Creep Sudden loading ANSWER DOWNLOAD EXAMIANS APP
Machine Design In second type of levers, None of these Fulcrum is in between the load and effort Effort is in between the fulcrum and load Load is in between the fulcrum and effort None of these Fulcrum is in between the load and effort Effort is in between the fulcrum and load Load is in between the fulcrum and effort ANSWER DOWNLOAD EXAMIANS APP
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