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 A hollow saddle key is Provided in pairs at right angles and each key is to withstand torsion in one direction only A taper key which fits in a key way of the hub and is flat on the shaft A taper key which fits half in the key way of hub and half in the key way of shaft A taper key which fits in a key way of the hub and the bottom of the key is shaped to fit the curved surface of the shaft Provided in pairs at right angles and each key is to withstand torsion in one direction only A taper key which fits in a key way of the hub and is flat on the shaft A taper key which fits half in the key way of hub and half in the key way of shaft A taper key which fits in a key way of the hub and the bottom of the key is shaped to fit the curved surface of the shaft ANSWER DOWNLOAD EXAMIANS APP
Machine Design The power transmitted by belt drive depends upon Belt velocity Arc of contact All of these Initial belt tension Belt velocity Arc of contact All of these Initial belt tension ANSWER DOWNLOAD EXAMIANS APP
Machine Design For a bevel gear having the pitch angle θ, the ratio of formative number of teeth (TE) to actual number of teeth (T) is 1/sinθ sinθ cosθ 1/tanθ 1/cosθ 1/sinθ sinθ cosθ 1/tanθ 1/cosθ ANSWER DOWNLOAD EXAMIANS APP
Machine Design Two shafts A and B are made of the same material. The diameter of shaft A is twice as that of shaft B. The power transmitted by the shaft A will be __________ of shaft B. Sixteen times Eight times Four times Twice Sixteen times Eight times Four times Twice ANSWER DOWNLOAD EXAMIANS APP
Machine Design In replacing the V-belts, a complete set of new belts is used instead of replacing a single damaged belt because Only one belt cannot be fitted with other used belts Belts are available in sets New and old belts will cause vibrations The new belt will carry more than its share and result in short life Only one belt cannot be fitted with other used belts Belts are available in sets New and old belts will cause vibrations The new belt will carry more than its share and result in short life ANSWER DOWNLOAD EXAMIANS APP
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