Theory of Machine The relation between number of links (l) and number of joints (j) in a kinematic chain is l = (1/2).(j + 2) l = (2/3).(j + 2) l = (3/4).(j + 3) l = j + 4 l = (1/2).(j + 2) l = (2/3).(j + 2) l = (3/4).(j + 3) l = j + 4 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which one of the following is an exact straight line mechanism using lower pairs? Watt’s mechanism Peaucellier’s mechanism Grasshopper mechanism Robert’s mechanism Watt’s mechanism Peaucellier’s mechanism Grasshopper mechanism Robert’s mechanism ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A completely constrained motion can be transmitted with. 2 links with pin joints 1 link with pin joints 3 links with pin joints 4 links with pin joints 2 links with pin joints 1 link with pin joints 3 links with pin joints 4 links with pin joints ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A shaft has two heavy rotors mounted on it. The transverse natural frequencies, considering each of the rotor separately, are 100 Hz and 200 Hz respectively. The lowest critical speed is 5,367 r.p.m. 12,000 r.p.m. 6,000 r.p.m. 9,360 r.p.m. 5,367 r.p.m. 12,000 r.p.m. 6,000 r.p.m. 9,360 r.p.m. ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a multiple V-belt drive, when a single belt is damaged, it is preferable to change the complete set to Reduce slip Ensure proper alignment Reduce vibration Ensure uniform loading Reduce slip Ensure proper alignment Reduce vibration Ensure uniform loading ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The instantaneous center of a rigid thin disc rolling on a plane rigid surface is located at The point of contact The point on the circumference situated vertically opposite to the contact point An infinite distance on the plane surface The center of the disc The point of contact The point on the circumference situated vertically opposite to the contact point An infinite distance on the plane surface The center of the disc ANSWER DOWNLOAD EXAMIANS APP
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