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 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 Is minimum at zero speed and increases monotonically with increase in speed ANSWER DOWNLOAD EXAMIANS APP
Machine Design The dedendum circle diameter is equal to (where φ = Pressure angle) Pitch circle diameter × cosφ Pitch circle diameter × sinφ Clearance circle diameter × cosφ Addendum circle diameter × cosφ Pitch circle diameter × cosφ Pitch circle diameter × sinφ Clearance circle diameter × cosφ Addendum circle diameter × cosφ ANSWER DOWNLOAD EXAMIANS APP
Machine Design In order to avoid tearing of the plate at an edge, the distance from the centre line of the rivet hole to the nearest edge of the plate should be equal to (where d = Diameter of rivet hole) 1.5 d 2 d 2.5 d 1 d 1.5 d 2 d 2.5 d 1 d ANSWER DOWNLOAD EXAMIANS APP
Machine Design For a shaft diameter of 200 mm, the number of bolts in a marine flange coupling should be 10 8 4 6 10 8 4 6 ANSWER DOWNLOAD EXAMIANS APP
Machine Design Multiple threads are used to secure High efficiency Low efficiency High load lifting capacity High mechanical advantage High efficiency Low efficiency High load lifting capacity High mechanical advantage ANSWER DOWNLOAD EXAMIANS APP
Machine Design When the shaft rotates in anticlockwise direction at slow speed in a bearing, it will 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 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 ANSWER DOWNLOAD EXAMIANS APP
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