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Machine Dynamics Practice Test: Governors
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Avg score: 71% Most missed: “For a stable governor, if the equilibrium speed increases, the radius of governo…”
Governors topics include: Governors and its types, watt and porter governor, hartnell, hartung and pickering governors, stability of governors, power of governor and porter governor, controlling force, controlling force diagram for porter and spring-controlled governor. A machine governor is a device that regulates the speed of a machine, such as an engine. Governors can also be used to limit the top speed of vehicles and protect engines from damage due to excessive rotational speed.  Governors typically regulate engine speed by varying the rate at which fuel is supplied. Most governors use... Show more
Machine Dynamics Practice Test: Governors
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1 Questions

1. From the data given:
Dimensions of spring = 6mm wide, 0.12 mm thick and length = 48 mm
mass attached to each leaf at centre = 25g
Distance between spindle axis and C.O.M when the governor is at rest = 8mm
Sleeve lift = 0.6mm
E= 200 GN/mm2
Find the speed of the turntable in rpm if ratio of the governor speed to the turntable speed is 10.