Machine Design For longitudinal joint in boilers, the type of joint used is Butt joint with single cover plate Any one of the above Lap joint with one ring overlapping the other Butt joint with double cover plate Butt joint with single cover plate Any one of the above Lap joint with one ring overlapping the other Butt joint with double cover plate ANSWER DOWNLOAD EXAMIANS APP
Machine Design The efficiency of a square threaded screw is maximum if the helix angle is equal to(Where φ = Angle of friction) 45° - φ/2 45° + φ/2 45° - φ 90° - φ 45° - φ/2 45° + φ/2 45° - φ 90° - φ ANSWER DOWNLOAD EXAMIANS APP
Machine Design The relation between the pitch of the chain (p) and pitch circle diameter of the sprocket (D) is given by (where T = Number of teeth on the sprocket) p = D sin (180°/T) p = D sin (120°/T) p = D sin (90°/T) p = D sin (360°/T) p = D sin (180°/T) p = D sin (120°/T) p = D sin (90°/T) p = D sin (360°/T) ANSWER DOWNLOAD EXAMIANS APP
Machine Design If a load W is applied instantaneously on a bar; Then the stress induced in bar will Decrease with decrease in y Be independent of ratio of mass of load W to mass of bar (y) Depend on other considerations Increase with increase in y Decrease with decrease in y Be independent of ratio of mass of load W to mass of bar (y) Depend on other considerations Increase with increase in y 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 New and old belts will cause vibrations The new belt will carry more than its share and result in short life Belts are available in sets Only one belt cannot be fitted with other used belts New and old belts will cause vibrations The new belt will carry more than its share and result in short life Belts are available in sets Only one belt cannot be fitted with other used belts ANSWER DOWNLOAD EXAMIANS APP
Machine Design The difference between the upper limit and lower limit of a dimension is called Nominal size Tolerance Basic size Actual size Nominal size Tolerance Basic size Actual size ANSWER DOWNLOAD EXAMIANS APP
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