Machine Design A spring of stiffness 1000 N/m is stretched initially by 100 mm from the undeformed position. The work required to stretch it by another 100 mm is 10 N-m 15 N-m 5 N-m 7 N-m 10 N-m 15 N-m 5 N-m 7 N-m 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 4 16 2 8 4 16 2 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) 1680 d 2080 d 1420 d 2840 d 1680 d 2080 d 1420 d 2840 d ANSWER DOWNLOAD EXAMIANS APP
Machine Design The railway carriage couplings have Acme threads Buttress threads Knuckle threads Square threads Acme threads Buttress threads Knuckle threads Square threads ANSWER DOWNLOAD EXAMIANS APP
Machine Design The angle of twist of shaft is Inversely proportional to (shaft diameter)⁴ Inversely proportional to (shaft diameter)² Directly proportional to (shaft diameter)² Directly proportional to (shaft diameter)⁴ Inversely proportional to (shaft diameter)⁴ Inversely proportional to (shaft diameter)² Directly proportional to (shaft diameter)² Directly proportional to (shaft diameter)⁴ ANSWER DOWNLOAD EXAMIANS APP
Machine Design In a flange coupling, the bolts are subjected to Tensile stress Shear stress Compressive stress None of these Tensile stress Shear stress Compressive stress None of these ANSWER DOWNLOAD EXAMIANS APP
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