Machine Design A shaft coupling should All of these Be easy to connect or disconnect Transmit full power of the shaft Hold the shafts in perfect alignment All of these Be easy to connect or disconnect Transmit full power of the shaft Hold the shafts in perfect alignment ANSWER DOWNLOAD EXAMIANS APP
Machine Design In an oil lubricated journal bearing, the coefficient of friction between the journal and the bearing 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 Is minimum at zero speed and increases monotonically with increase in speed Remains constant at all speeds ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which of the following bearing is preferred for oscillating conditions? Double row roller bearing Angular contact single row ball bearing Taper roller bearing Needle roller bearing Double row roller bearing Angular contact single row ball bearing Taper roller bearing Needle roller bearing ANSWER DOWNLOAD EXAMIANS APP
Machine Design When a hole of diameter ‘d’ is punched in a metal of thickness 't', then the force required to punch a hole is equal to (where τu = Ultimate shear strength of the material of the plate) π/4 × d² × tτu π/4 × d².τu t.τu πd.t.τu π/4 × d² × tτu π/4 × d².τu t.τu πd.t.τu ANSWER DOWNLOAD EXAMIANS APP
Machine Design When a belt drive is transmitting maximum power, Effective tension is equal to centrifugal tension Effective tension is half of centrifugal tension Driving tension on tight side is twice the centrifugal tension Driving tension on slack side is equal to centrifugal tension Effective tension is equal to centrifugal tension Effective tension is half of centrifugal tension Driving tension on tight side is twice the centrifugal tension Driving tension on slack side is equal to centrifugal tension ANSWER DOWNLOAD EXAMIANS APP
Machine Design When a machine member is subjected to torsion, the torsional shear stress set up in the member is Zero at the centroidal axis and maximum at the outer surface of the member Maximum at the centroidal axis and zero at the outer surface of the member Zero at both the centroidal axis and outer surface of the member Maximum at both the centroidal axis and outer surface of the member Zero at the centroidal axis and maximum at the outer surface of the member Maximum at the centroidal axis and zero at the outer surface of the member Zero at both the centroidal axis and outer surface of the member Maximum at both the centroidal axis and outer surface of the member ANSWER DOWNLOAD EXAMIANS APP
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