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 The designation M 33 × 2 of a bolt means Bolt of 33 mm nominal diameter having 2 threads per cm Metric threads with cross-section of 33 mm Metric threads of 33 numbers in 2 cm Metric threads of 33 mm outside diameter and 2 mm pitch Bolt of 33 mm nominal diameter having 2 threads per cm Metric threads with cross-section of 33 mm Metric threads of 33 numbers in 2 cm Metric threads of 33 mm outside diameter and 2 mm pitch ANSWER DOWNLOAD EXAMIANS APP
Machine Design If a load W is applied instantaneously on a bar; Then the stress induced in bar will Be independent of ratio of mass of load W to mass of bar (y) Decrease with decrease in y Increase with increase in y Depend on other considerations Be independent of ratio of mass of load W to mass of bar (y) Decrease with decrease in y Increase with increase in y Depend on other considerations ANSWER DOWNLOAD EXAMIANS APP
Machine Design In worm gears, the angle between the tangent to the pitch helix and an element of the cylinder, is known as None of these Helix angle Pressure angle Pitch lead angle None of these Helix angle Pressure angle Pitch lead angle ANSWER DOWNLOAD EXAMIANS APP
Machine Design The rolling contact bearings are known as Plastic bearings Antifriction bearings Thin lubricated bearings Thick lubricated bearings Plastic bearings Antifriction bearings Thin lubricated bearings Thick lubricated bearings ANSWER DOWNLOAD EXAMIANS APP
Machine Design A shaft coupling should All of these Hold the shafts in perfect alignment Transmit full power of the shaft Be easy to connect or disconnect All of these Hold the shafts in perfect alignment Transmit full power of the shaft Be easy to connect or disconnect ANSWER DOWNLOAD EXAMIANS APP
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