Theory of Machine In an ideal machine, the output as compared to input is May be less or more depending on efficiency More Equal Less May be less or more depending on efficiency More Equal Less ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A shaft has an attached disc at the centre of its length. The disc has its centre of gravity located at a distance of 2 mm from the axis of the shaft. When the shaft is allowed to vibrate in its natural bow-shaped mode, it has a frequency of vibration of 10 rad/s. When the shaft is rotated at 300 r.p.m., it will whirl with a radius of 2.50 mm 2.22 mm 3.0 mm 2 mm 2.50 mm 2.22 mm 3.0 mm 2 mm ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which one of the following can completely balance several masses revolving in different planes on a shaft? A single mass in different planes Two equal masses in any two planes Two masses in any two planes A single mass in one of the planes of the revolving masses A single mass in different planes Two equal masses in any two planes Two masses in any two planes A single mass in one of the planes of the revolving masses ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A rotor which is balanced statically but not dynamically is supported on two bearings L apart and at high speed of the rotor, reaction on the left bearing is R. The right side of the bearing is shifted to a new position 2L apart from the left bearing. At the same rotor speed, dynamic reaction on the left bearing in the new arrangement will Remain same as before Become equal to R/2 Become equal to R/4 Become equal to 2R Remain same as before Become equal to R/2 Become equal to R/4 Become equal to 2R ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine For S.H.M. cam, the acceleration of the follower at the ends of the stroke and aimed stroke respectively, is Zero and minimum Zero and maximum Maximum and zero Minimum and maximum Zero and minimum Zero and maximum Maximum and zero Minimum and maximum ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Higher pairs are those which have Point or line contact between the two elements when in motion Elements of pairs not held together mechanically Surface contact between the two elements when in motion Two elements that permit relative motion Point or line contact between the two elements when in motion Elements of pairs not held together mechanically Surface contact between the two elements when in motion Two elements that permit relative motion ANSWER DOWNLOAD EXAMIANS APP
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