Machine Design In an oil lubricated journal bearing, the coefficient of friction between the journal and the bearing 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 Becomes minimum at an optimum speed and then increases with further increase in speed ANSWER DOWNLOAD EXAMIANS APP
Machine Design A shaft is subjected to fluctuating loads for which the normal torque (T) and bending moment (M) are 1000 N-m and 500 N-m respectively. If the combined shock and fatigue factor for bending is 1.5 and combined shock and fatigue factor for torsion is 2, then the equivalent twisting moment for the shaft is 2000 N-m 2100 N-m 2136 N-m 2050 N-m 2000 N-m 2100 N-m 2136 N-m 2050 N-m ANSWER DOWNLOAD EXAMIANS APP
Machine Design The stress which vary from a minimum value to a maximum value of the same nature (i.e. tensile or compressive) is called Alternating stress Fluctuating stress Repeated stress Yield stress Alternating stress Fluctuating stress Repeated stress Yield stress ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which is correct statement? Stress concentration in cyclic loading is Very serious in ductile materials and less serious in brittle materials Very serious in brittle materials and less serious in ductile materials Equally serious in both types of materials Seriousness would depend on other factors Very serious in ductile materials and less serious in brittle materials Very serious in brittle materials and less serious in ductile materials Equally serious in both types of materials Seriousness would depend on other factors ANSWER DOWNLOAD EXAMIANS APP
Machine Design The difference between the tooth space and the tooth thickness as measured on the pitch circle, is called Working depth Face width Backlash Clearance Working depth Face width Backlash Clearance ANSWER DOWNLOAD EXAMIANS APP
Machine Design The fatigue life of a part can be improved by Electroplating Polishing Coating Shot peening Electroplating Polishing Coating Shot peening ANSWER DOWNLOAD EXAMIANS APP
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