Machine Design The load cup of a screw jack is made separate from the head of the spindle to Reduce the effort needed for lifting the working load Reduce the value of frictional torque Prevent the rotation of load being lifted Enhance the load carrying capacity of the jack Reduce the effort needed for lifting the working load Reduce the value of frictional torque Prevent the rotation of load being lifted Enhance the load carrying capacity of the jack ANSWER DOWNLOAD EXAMIANS APP
Machine Design A tapered key which fits in a key way in the hub and the bottom of which is shaped to fit the curved surface of the shaft, is known as, Soft key Hollow key None of these Hollow saddle key Soft key Hollow key None of these Hollow saddle key 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 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 The backlash for spur gears depends upon Both module and pitch line velocity Pitch line velocity Tooth profile Module Both module and pitch line velocity Pitch line velocity Tooth profile Module ANSWER DOWNLOAD EXAMIANS APP
Machine Design The maximum efficiency of a square threaded screw is (1 + cosφ)/ (1 - sinφ) (1 - sinφ)/ (1 + sinφ) (1 - sinφ)/ (1 + cosφ) (1 + sinφ)/ (1 - sinφ) (1 + cosφ)/ (1 - sinφ) (1 - sinφ)/ (1 + sinφ) (1 - sinφ)/ (1 + cosφ) (1 + sinφ)/ (1 - sinφ) ANSWER DOWNLOAD EXAMIANS APP
Machine Design Two shafts of the same length and material are joined in series. If the ratio of their diameters is 2, then the ratio of their angles of twist will be 8 16 2 4 8 16 2 4 ANSWER DOWNLOAD EXAMIANS APP
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