Machine Design The maximum efficiency of a square threaded screw is (1 - sinφ)/ (1 + sinφ) (1 + sinφ)/ (1 - sinφ) (1 - sinφ)/ (1 + cosφ) (1 + cosφ)/ (1 - sinφ) (1 - sinφ)/ (1 + sinφ) (1 + sinφ)/ (1 - sinφ) (1 - sinφ)/ (1 + cosφ) (1 + cosφ)/ (1 - sinφ) ANSWER DOWNLOAD EXAMIANS APP
Machine Design When the pulley or other mating piece is required to slide along the shaft, a __________ sunk key is used. Square Rectangular Parallel None of these Square Rectangular Parallel None of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design For a shaft diameter of 200 mm, the number of bolts in a marine flange coupling should be 8 10 6 4 8 10 6 4 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 A shaft is subjected to a maximum bending stress of 80 N/mm² and maximum shearing stress equal to 30 N/mm² at a particular section. If the yield point in tension of the material is 280 N/mm² and the maximum shear stress theory of failure is used, then the factor of safety obtained will be 2.8 3 2.5 3.5 2.8 3 2.5 3.5 ANSWER DOWNLOAD EXAMIANS APP
Machine Design The efficiency of a riveted joint is equal to Ps /P Pt /P Least of Pt, Ps and Pc/P Pc /P Ps /P Pt /P Least of Pt, Ps and Pc/P Pc /P ANSWER DOWNLOAD EXAMIANS APP
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