Theory of Machine The velocity of a flat-faced follower when it has contact with the flank of a circular arc cam, is given by ωR cosθ ω(R - r₁) cosθ ω(R - r₁) sinθ ωr₁ sinθ ωR cosθ ω(R - r₁) cosθ ω(R - r₁) sinθ ωr₁ sinθ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The efficiency of a screw jack is maximum, when (where α = Helix angle, and φ = Angle of friction) α = 90° - φ α = 90° + φ α = 45° - φ/2 α = 45° + φ/2 α = 90° - φ α = 90° + φ α = 45° - φ/2 α = 45° + φ/2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following is an open pair? Journal bearing Cam and follower Ball and socket joint Lead screw and nut Journal bearing Cam and follower Ball and socket joint Lead screw and nut ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A Porter governor is a Inertia governor Spring loaded governor Dead weight governor Pendulum type governor Inertia governor Spring loaded governor Dead weight governor Pendulum type governor ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation of the crank. For the lengths of 50 mm of crank and 70 mm of the follower, determine theoretical maximum length of coupler. The distance between fixed pivots of crank and followers is Slightly less than 95 mm 95 mm Slightly more than 95 mm 45 mm Slightly less than 95 mm 95 mm Slightly more than 95 mm 45 mm ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a turning moment diagram, the variations of energy above and below the mean resisting torque line is called Coefficient of fluctuation of energy Maximum fluctuation of energy None of the listed here Fluctuation of energy Coefficient of fluctuation of energy Maximum fluctuation of energy None of the listed here Fluctuation of energy ANSWER DOWNLOAD EXAMIANS APP
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