Machine Design In an oil lubricated journal bearing, the coefficient of friction between the journal and the bearing Becomes minimum at an optimum speed and then increases with further increase in speed Remains constant at all speeds Is minimum at zero speed and increases monotonically with increase in speed 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 Remains constant at all speeds Is minimum at zero speed and increases monotonically with increase in speed Is maximum at zero speed and decreases monotonically with increase in speed ANSWER DOWNLOAD EXAMIANS APP
Machine Design While designing a screw in a screw jack against buckling failure, the end conditions for the screw are taken as One end fixed and the other end hinged One end fixed and the other end free Both the ends hinged Both the ends fixed One end fixed and the other end hinged One end fixed and the other end free Both the ends hinged Both the ends fixed ANSWER DOWNLOAD EXAMIANS APP
Machine Design When two helical springs of equal lengths are arranged to form a cluster spring, then Both A and B is correct Only A is correct Shear stress in each spring will be equal Load taken by each spring will be half the total load Both A and B is correct Only A is correct Shear stress in each spring will be equal Load taken by each spring will be half the total load ANSWER DOWNLOAD EXAMIANS APP
Machine Design A connecting rod subjected to an axial load may buckle with X-axis or Y-axis as neutral axis X-axis as neutral axis Z-axis Y-axis as neutral axis X-axis or Y-axis as neutral axis X-axis as neutral axis Z-axis Y-axis as neutral axis ANSWER DOWNLOAD EXAMIANS APP
Machine Design Two helical springs of the same material and of equal circular cross-section, length and number of turns, but having radii 80 mm and 40 mm, kept concentrically (smaller radius spring within the larger radius spring), are compressed between two parallel planes with a load W. The inner spring will carry a load equal to 2W/3 W/9 W/2 8W/9 2W/3 W/9 W/2 8W/9 ANSWER DOWNLOAD EXAMIANS APP
Machine Design The pipe joint mostly used for pipes carrying water at low pressures is Union joint Spigot and socket joint Nipple joint Socket joint Union joint Spigot and socket joint Nipple joint Socket joint ANSWER DOWNLOAD EXAMIANS APP
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