Machine Design The stress in the bar when the load is applied suddenly is __________ as compared to the stress induced due to gradually applied loads. Double Three times Same Four times Double Three times Same Four times ANSWER DOWNLOAD EXAMIANS APP
Machine Design A sliding bearing which can support steady loads without any relative motion between the journal and the bearing, is called Boundary lubricated bearing Zero film bearing Hydrodynamic lubricated bearing Hydrostatic lubricated bearing Boundary lubricated bearing Zero film bearing Hydrodynamic lubricated bearing Hydrostatic lubricated bearing 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 Is maximum at zero speed and decreases monotonically with increase in speed Remains constant at all speeds 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 Is maximum at zero speed and decreases monotonically with increase in speed Remains constant at all speeds Becomes minimum at an optimum speed and then increases with further increase in speed ANSWER DOWNLOAD EXAMIANS APP
Machine Design When the shaft rotates in anticlockwise direction at slow speed in a bearing, it will Move towards right of the bearing making the metal to metal contact Move towards right of the bearing making no metal to metal contact Move towards left of the bearing making metal to metal contact Have contact at the bottom most of the bearing Move towards right of the bearing making the metal to metal contact Move towards right of the bearing making no metal to metal contact Move towards left of the bearing making metal to metal contact Have contact at the bottom most of the bearing ANSWER DOWNLOAD EXAMIANS APP
Machine Design The temperature at which the new grains are formed in the metal is known as Upper critical temperature Lower critical temperature None of these Recrystallization temperature Upper critical temperature Lower critical temperature None of these Recrystallization temperature ANSWER DOWNLOAD EXAMIANS APP
Machine Design For a shoe brake, the equivalent coefficient of friction is equal to (where μ = Actual coefficient of friction, and θ = Semi-block angle) 4μ sinθ/(2θ + sin 2θ) μ sinθ/(2θ + sin 2θ) 2μ sinθ/(θ + sinθ) 4μ sinθ/(θ + sinθ) 4μ sinθ/(2θ + sin 2θ) μ sinθ/(2θ + sin 2θ) 2μ sinθ/(θ + sinθ) 4μ sinθ/(θ + sinθ) ANSWER DOWNLOAD EXAMIANS APP
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