Theory of Machine Which of the following is an open pair? Lead screw and nut Cam and follower Journal bearing Ball and socket joint Lead screw and nut Cam and follower Journal bearing Ball and socket joint ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A simple spring-mass vibrating system has a natural frequency of fn. If the spring stiffness is halved and the mass is doubled, then the natural frequency will become 2 fn fn/2 4 fn 8 fn 2 fn fn/2 4 fn 8 fn ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The example of higher pair is All of these Ball and roller bearings Belt, rope and chain drives Gears, cams All of these Ball and roller bearings Belt, rope and chain drives Gears, cams ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a disc clutch, if there are n₁ number of discs on the driving shaft and n₂ number of discs on the driven shaft, then the number of pairs of contact surfaces will be n₁ + n₂ n₁ + n₂ - 2 n₁ + n₂ + 1 n₁ + n₂ - 1 n₁ + n₂ n₁ + n₂ - 2 n₁ + n₂ + 1 n₁ + n₂ - 1 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The factional torque for square thread at the mean radius r while raising load W is given by T = W.r tanα T = W.r tan(φ - α) T = W.r tan(φ + α) T = W.r tanφ T = W.r tanα T = W.r tan(φ - α) T = W.r tan(φ + α) T = W.r tanφ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Hammer blow Varies as the square root of the speed Varies inversely with the square of the speed Is the maximum vertical unbalanced force caused by the mass added to balance the reciprocating masses Is the maximum horizontal unbalanced force caused by the mass provided to balance the reciprocating masses. Varies as the square root of the speed Varies inversely with the square of the speed Is the maximum vertical unbalanced force caused by the mass added to balance the reciprocating masses Is the maximum horizontal unbalanced force caused by the mass provided to balance the reciprocating masses. ANSWER DOWNLOAD EXAMIANS APP
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