Machine Design At low temperatures (say 75°C) the notched bar impact value of steel Depends on heat treatment carried out Remain same Decreases markedly Increases markedly Depends on heat treatment carried out Remain same Decreases markedly Increases markedly ANSWER DOWNLOAD EXAMIANS APP
Machine Design The connecting rod bolts are tightened up with initial tension greater than the external load so that Joint may not open up The resultant load on the bolt would not be affected by the external cyclic load Bolts will not loosen during service Bolts are weakest elements Joint may not open up The resultant load on the bolt would not be affected by the external cyclic load Bolts will not loosen during service Bolts are weakest elements ANSWER DOWNLOAD EXAMIANS APP
Machine Design Crowning on pulley helps To keep the belt in centre on a pulley while it is in motion To increase pulley life In increasing the slip of the belt In decreasing the slip of the belt To keep the belt in centre on a pulley while it is in motion To increase pulley life In increasing the slip of the belt In decreasing the slip of the belt ANSWER DOWNLOAD EXAMIANS APP
Machine Design The designation M 33 × 2 of a bolt means Metric threads of 33 mm outside diameter and 2 mm pitch Metric threads with cross-section of 33 mm Bolt of 33 mm nominal diameter having 2 threads per cm Metric threads of 33 numbers in 2 cm Metric threads of 33 mm outside diameter and 2 mm pitch Metric threads with cross-section of 33 mm Bolt of 33 mm nominal diameter having 2 threads per cm Metric threads of 33 numbers in 2 cm ANSWER DOWNLOAD EXAMIANS APP
Machine Design For tight leakage joints, following type of thread is best suited NPT (national pipe threads). Square Metric Buttress NPT (national pipe threads). Square Metric Buttress ANSWER DOWNLOAD EXAMIANS APP
Machine Design An open belt drive is used when Shafts are arranged parallel and rotate in the same directions Shafts are arranged parallel and rotate in the opposite directions Shafts are arranged at right angles and rotate in one definite direction Driven shaft is to be started or stopped whenever desired without interfering with the driving shaft Shafts are arranged parallel and rotate in the same directions Shafts are arranged parallel and rotate in the opposite directions Shafts are arranged at right angles and rotate in one definite direction Driven shaft is to be started or stopped whenever desired without interfering with the driving shaft ANSWER DOWNLOAD EXAMIANS APP
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