Machine Design In replacing the V-belts, a complete set of new belts is used instead of replacing a single damaged belt because 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 Only one belt cannot be fitted with other used belts ANSWER DOWNLOAD EXAMIANS APP
Machine Design A plate with an elliptical hole in the centre, with semi-major axis (a) perpendicular to the direction of loading and semi-minor axis (b) along the direction of loading, is subjected to a pull P. The maximum stress induced at the edge of the hole is equal to (where σ = Stress for a plate with no hole i.e. nominal stress) σ [1 + (b/2a)] σ [1 + (b/3a)] σ [1 + (3a/b)] σ [1 + (2a/b)] σ [1 + (b/2a)] σ [1 + (b/3a)] σ [1 + (3a/b)] σ [1 + (2a/b)] ANSWER DOWNLOAD EXAMIANS APP
Machine Design For same pulley diameters, center distance, belt speed and belt and pulley materials, Crossed belt drive transmits more power than open belt drive Power transmission does not depend upon open and crossed types of constructions Open belt drive transmits more power than crossed belt drive Open and crossed belt drives transmit same power Crossed belt drive transmits more power than open belt drive Power transmission does not depend upon open and crossed types of constructions Open belt drive transmits more power than crossed belt drive Open and crossed belt drives transmit same power ANSWER DOWNLOAD EXAMIANS APP
Machine Design In cross or regular lay ropes Wires in two adjacent strands are twisted in opposite direction Direction of twist of wires in strands is opposite to the direction of twist of strands Direction of twist of wires and strands are same Wires are not twisted Wires in two adjacent strands are twisted in opposite direction Direction of twist of wires in strands is opposite to the direction of twist of strands Direction of twist of wires and strands are same Wires are not twisted ANSWER DOWNLOAD EXAMIANS APP
Machine Design A coupling used to connect two perfectly aligned shafts, is All of these Compression coupling Muff coupling Flange coupling All of these Compression coupling Muff coupling Flange coupling ANSWER DOWNLOAD EXAMIANS APP
Machine Design In levers, leverage is the ratio of Load arm to the effort arm Effort arm to the load arm Mechanical advantage to the velocity ratio Load lifted to the effort applied Load arm to the effort arm Effort arm to the load arm Mechanical advantage to the velocity ratio Load lifted to the effort applied ANSWER DOWNLOAD EXAMIANS APP
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