Theory of Machine In an open pair, the two elements of a pair Are kept in contact by the action of external forces, when in motion Are not held together mechanically Have a surface contact when in motion Have a line or point contact when in motion Are kept in contact by the action of external forces, when in motion Are not held together mechanically Have a surface contact when in motion Have a line or point contact when in motion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The ratio of height of Porter governor (when length of arms and links are equal) to the height of Watt's governor is (where m = Mass of the ball, and M = Mass on the sleeve) M/(m + M) (m + M)/M (m + M)/m m/(m + M) M/(m + M) (m + M)/M (m + M)/m m/(m + M) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The C.G. of a link in any mechanism would experience Linear acceleration No acceleration Both angular and linear accelerations Angular acceleration Linear acceleration No acceleration Both angular and linear accelerations Angular acceleration ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The equation of free vibrations of a system is (d²x/dt²) +36 π²x, its natural frequency is 3 Hz 3π Hz 6 Hz 6π Hz 3 Hz 3π Hz 6 Hz 6π Hz ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following is an inversion of Single slider crank chain? Elliptical trammel Rotary engine Beam engine Oldham’s coupling Elliptical trammel Rotary engine Beam engine Oldham’s coupling ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When a point at the end of a link moves with constant angular velocity, its acceleration will have Radial component only Radial and tangential components both Coriolis component only Tangential component only Radial component only Radial and tangential components both Coriolis component only Tangential component only ANSWER DOWNLOAD EXAMIANS APP
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