Machine Design In replacing the V-belts, a complete set of new belts is used instead of replacing a single damaged belt because 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 New and old belts will cause vibrations ANSWER DOWNLOAD EXAMIANS APP
Machine Design The initial tension (in newtons) in a bolt used for making a fluid tight joint like steam engine cover joints, is calculated by the relation (where d = Nominal diameter of bolt in mm) 2840 d 2080 d 1420 d 1680 d 2840 d 2080 d 1420 d 1680 d ANSWER DOWNLOAD EXAMIANS APP
Machine Design In nitrated parts, the origins of the fatigue cracks will occur at Within the core Surface None of these Just below the surface Within the core Surface None of these Just below the surface ANSWER DOWNLOAD EXAMIANS APP
Machine Design In a partial journal bearing, the angle of contact of the bearing with the journal is 180° 120° 270° 360° 180° 120° 270° 360° ANSWER DOWNLOAD EXAMIANS APP
Machine Design Idler pulley is used for Increasing velocity ratio Changing the direction of motion of belt All of these For applying tension Increasing velocity ratio Changing the direction of motion of belt All of these For applying tension ANSWER DOWNLOAD EXAMIANS APP
Machine Design The resilience of a bolt may be increased by Decreasing its shank diameter Decreasing its length Increasing its length Increasing its shank diameter Decreasing its shank diameter Decreasing its length Increasing its length Increasing its shank diameter ANSWER DOWNLOAD EXAMIANS APP
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