Machine Design According to Indian standards, total numbers of tolerance grades are 12 20 8 18 12 20 8 18 ANSWER DOWNLOAD EXAMIANS APP
Machine Design The constant factor in case of R10 series of preferred numbers is 1.58 1.06 1.12 1.26 1.58 1.06 1.12 1.26 ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which of the following statement is correct regarding power screws? The efficiency of a self locking screw can not be more than 50% Both (A) and (B) If the friction angle is less than the helix angle of the screw, then the efficiency will be more than 50% The efficiency of Acme (trapezoidal) thread is less than that of a square thread The efficiency of a self locking screw can not be more than 50% Both (A) and (B) If the friction angle is less than the helix angle of the screw, then the efficiency will be more than 50% The efficiency of Acme (trapezoidal) thread is less than that of a square thread ANSWER DOWNLOAD EXAMIANS APP
Machine Design Stress concentration factor is defined as the ratio of Nominal stress to the endurance limit Nominal stress to the maximum stress Maximum stress to the nominal stress Maximum stress to the endurance limit Nominal stress to the endurance limit Nominal stress to the maximum stress Maximum stress to the nominal stress Maximum stress to the endurance limit ANSWER DOWNLOAD EXAMIANS APP
Machine Design When an open coiled helical compression spring is subjected to an axial compressive load, the maximum shear stress induced in the wire is (where D = Mean diameter of the spring coil, d = Diameter of the spring wire, K = Wahl's stress factor, and W = Axial compressive load on the spring) (8WD/ πd3) × K (4WD/ πd3) × K (2WD/ πd3) × K (WD/ πd3) × K (8WD/ πd3) × K (4WD/ πd3) × K (2WD/ πd3) × K (WD/ πd3) × K ANSWER DOWNLOAD EXAMIANS APP
Machine Design Coaxing is the procedure of increasing Metal hardness by surface treatment Fatigue limit by over-stressing the metal by successively increasing loadings Metal resistance to corrosion by coating Metal strength by cycling Metal hardness by surface treatment Fatigue limit by over-stressing the metal by successively increasing loadings Metal resistance to corrosion by coating Metal strength by cycling ANSWER DOWNLOAD EXAMIANS APP
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