Theory of Machine The equation of free vibrations of a system is (d²x/dt²) +36 π²x, its natural frequency is 6π Hz 3π Hz 6 Hz 3 Hz 6π Hz 3π Hz 6 Hz 3 Hz ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The brake commonly used in railway trains is Band brake Shoe brake Internal expanding brake Band and block brake Band brake Shoe brake Internal expanding brake Band and block brake 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 Become equal to R/2 Remain same as before Become equal to R/4 Become equal to 2R Become equal to R/2 Remain same as before Become equal to R/4 Become equal to 2R ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The main disadvantage of the sliding pair is that it is Wears rapidly Bulky Difficult to manufacture Both (A) and (B) above Wears rapidly Bulky Difficult to manufacture Both (A) and (B) above ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A higher pair has__________. Surface contact No contact None of these Point contact Surface contact No contact None of these Point contact ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a simple harmonic motion, the velocity vector with respect to displacement vector Leads by 90° Leads by 180° Lags by 90° Is in phase Leads by 90° Leads by 180° Lags by 90° Is in phase ANSWER DOWNLOAD EXAMIANS APP
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