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 = 0 a is +ve and b is -ve a = 0 and b is +ve a is +ve and b is also +ve a is +ve and b = 0 a is +ve and b is -ve a = 0 and b is +ve a is +ve and b is also +ve ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A machine mounted on a single coil spring has a period of free vibration of tp . If the spring is cut into four equal parts and placed in parallel and the machine is mounted on them, then the period of free vibration of the new system will become tp /4 4 tp 16 tp tp /16 tp /4 4 tp 16 tp tp /16 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Elements of pairs held together mechanically is known as Rolling pair Open pair Mechanical pair Closed pair Rolling pair Open pair Mechanical pair Closed pair ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The relation between the controlling force (Fc) and radius of rotation (r) for a stable spring controlled governor is Fc = ar + b Fc = a/r + b Fc = ar - b Fc = ar Fc = ar + b Fc = a/r + b Fc = ar - b Fc = ar 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 Carnot cycle is a quasi static cycle an irreversible cycle a semi-reversible cycle a reversible cycle a quasi static cycle an irreversible cycle a semi-reversible cycle a reversible cycle ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS