Machine Design The ends of the leaves of a semi-elliptical leaf spring are made triangular in order to Obtain variable moment of inertia (I) in each leaf Make M/I constant throughout the length of the leaf Have variable bending moment (M) in each leaf Permit each leaf to act as an overhanging beam Obtain variable moment of inertia (I) in each leaf Make M/I constant throughout the length of the leaf Have variable bending moment (M) in each leaf Permit each leaf to act as an overhanging beam ANSWER DOWNLOAD EXAMIANS APP
Machine Design Two shafts ‘A’ and ‘B’ under pure torsion are of identical length and identical weight and are made of the same material. The shaft ‘A’ is solid and the shaft ‘B’ is hollow. We can say that Shaft B is better than shaft A Shaft A is better than shaft B Both the shafts are equally good None of these Shaft B is better than shaft A Shaft A is better than shaft B Both the shafts are equally good None of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design In worm gears, the pressure angle is __________ the angle between two inclined faces in axial plane. None of these Thrice Twice Half None of these Thrice Twice Half ANSWER DOWNLOAD EXAMIANS APP
Machine Design Residual stress in materials Acts when external load is applied Is always harmful Is independent of external loads Becomes zero when external load is removed Acts when external load is applied Is always harmful Is independent of external loads Becomes zero when external load is removed 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
Machine Design In a boundary lubricated bearing, there is a __________ of lubricant between the journal and the bearing. Thick film Thin film Either A or B None of these Thick film Thin film Either A or B None of these ANSWER DOWNLOAD EXAMIANS APP
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