Effort of a governor is the

A mean force exerted at the sleeve for a given percentage change of speed
B workdone at the sleeve for maximum equilibrium speed
C mean force exerted at the sleeve for maximum equilibrium speed
D none of the mentioned

Correct Answer: mean force exerted at the sleeve for a given percentage change of speed

The effort of a governor is the mean force exerted at the sleeve for a given percentage change of speed (or lift of the sleeve).
Bissoy MCQ
#Machine Dynamics #Porter Governor

Related Questions

In a screw jack, the effort required to lower the load is __________ the effort required to raise the same load.
A Less than
B Equal to
C More than
D None of these
During a service recovery effort, the employee was very empathetic to the customer’s plight and agreed to replace the defective product. However, it took three months for the replacement product to show up which was much later than the customer had anticipated. As a result, the recovery effort violated the customer’s ___________ justice need.
A social
B procedural
C interactional
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The effort of a Porter governor is equal to (where c = Percentage increase in speed, m = Mass of ball and M = Mass on the sleeve)
A $${\text{c}}\left( {{\text{m}} - {\text{M}}} \right){\text{g}}$$
B $${\text{c}}\left( {{\text{m}} + {\text{M}}} \right){\text{g}}$$
C $$\frac{{\text{c}}}{{\left( {{\text{m}} + {\text{M}}} \right){\text{g}}}}$$
D $$\frac{{\text{c}}}{{\left( {{\text{m}} - {\text{M}}} \right){\text{g}}}}$$
When the sleeve of a Porter governor moves upwards, the governor speed
A increases
B decreases
C remains unaffected
D none of the mentioned
For two governors A and B, the lift of sleeve of governor A is more than that of governor B, for a given fractional change in speed. It indicates that
A governor A is more sensitive than governor B
B governor B is more sensitive than governor A
C both governors A and B are equally sensitive
D none of the mentioned
In a Hartnell governor, if a spring of greater stiffness is used, then the governor will be
A more sensitive
B less sensitive
C isochronous
D none of the mentioned
When the sleeve of a Porter governor moves downwards, the governor speed
A increases
B decreases
C remains unaffected
D first increases and then decreases
If the controlling force line for a spring controlled governor when produced intersects the Y-axis at the origin, then the governor is said to be
A stable
B unstable
C isochronous
D none of the mentioned
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 a is +ve and b = 0
B a = 0 and b is +ve
C a is +ve and b is -ve
D a is +ve and b is also +ve
In a spring controlled governor, when the controlling force ________ as the radius of rotation increases, it is said to be a stable governor.
A Remains constant
B Decreases
C Increases
D None of these

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