Theory of Machine A Hartnell governor has its controlling force (Fc) given by Fc = ar + b, where r is the radius of rotation and a and b are constants. The governor becomes isochronous when a is +ve and b is also +ve a is +ve and b is -ve a is +ve and b = 0 a = 0 and b is +ve a is +ve and b is also +ve a is +ve and b is -ve a is +ve and b = 0 a = 0 and b is +ve ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The example of spherical pair is Bolt and nut Lead screw of a lathe Ball and socket joint Ball bearing and roller bearing Bolt and nut Lead screw of a lathe Ball and socket joint Ball bearing and roller bearing ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the relation between the controlling force (Fc) and radius of rotation (r) for a spring controlled governor is Fc = ar + b, then the governor will be None of these Stable Isochronous Unstable None of these Stable Isochronous Unstable ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The main disadvantage of the sliding pair is that it is Bulky Wears rapidly Both (A) and (B) above Difficult to manufacture Bulky Wears rapidly Both (A) and (B) above Difficult to manufacture ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A shaft carrying three rotors will have No node Three nodes One node Two nodes No node Three nodes One node Two nodes ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a vibrating system, if the actual damping coefficient is 40 N/m/s and critical damping coefficient is 420 N/m/s, then logarithmic decrement is equal to 0.2 0.4 0.8 0.6 0.2 0.4 0.8 0.6 ANSWER DOWNLOAD EXAMIANS APP
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