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 In the levers of first type, the mechanical advantage is ________ one. None of these More than Less than Equal to None of these More than Less than Equal to ANSWER DOWNLOAD EXAMIANS APP
Machine Design In a boundary lubricated bearing, there is a __________ of lubricant between the journal and the bearing. None of these Thin film Either A or B Thick film None of these Thin film Either A or B Thick film ANSWER DOWNLOAD EXAMIANS APP
Machine Design An alien bolt is Same as stud Self locking bolt Provided with hexagonal depression in head Used in high speed components Same as stud Self locking bolt Provided with hexagonal depression in head Used in high speed components ANSWER DOWNLOAD EXAMIANS APP
Machine Design A bolt is designed on the basis of __________ with a large factor of safety. Direct shear stress Direct compressive stress Direct bending stress Direct tensile stress Direct shear stress Direct compressive stress Direct bending stress Direct tensile stress ANSWER DOWNLOAD EXAMIANS APP
Machine Design Shear stress theory is applicable for Elastic materials All of these Ductile materials Brittle materials Elastic materials All of these Ductile materials Brittle materials ANSWER DOWNLOAD EXAMIANS APP
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