Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
942 views
in General by (105k points)
closed by

Governor sensitivity is the ratio of


1. Range of speed to the minimum speed
2. Maximum speed to minimum speed
3. Mean speed to the range of speed
4. Governor lift to the range of speed

1 Answer

0 votes
by (111k points)
selected by
 
Best answer
Correct Answer - Option 3 : Mean speed to the range of speed

Concept:

Sensitivity of Governor is defined as the reciprocal of Sensitiveness of governor.

\(Sensitivity~=~\frac{1}{Sensitiveness}\)

\(Sensitivity~=~\frac{mean ~speed}{range~ of~ speed}~=~\frac{N_m}{N_2-N_1}\)

  • Consider two governors A and B running at the same speed
  • When this speed increases or decreases by a certain amount, the lift of the sleeve of governor A is greater than the lift of the sleeve of governor B
  • It is then said that the governor A is more sensitive than the governor B
  • In general, the greater the lift of the sleeve corresponding to a given fractional change in speed, the greater is the sensitiveness of the governor
  • The sensitiveness is defined as the ratio of the difference between the maximum and minimum equilibrium speeds to the mean equilibrium speed

\({\rm{Sensitiveness = }}\frac{{{\rm{Range}}\,{\rm{of}}\,{\rm{Speed}}}}{{{\rm{Mean}}\,{\rm{Speed}}}} = \frac{{{\omega _{\max }} - {\omega _{\min }}}}{{{\omega _{{\mathop{\rm m}\nolimits} ean}}}}\)

  • A governor is said to be isochronous when the equilibrium speed is constant (i.e. the range of speed is zero) for all radii of rotation of the balls within the working range, neglecting friction.

  • Sensitivity and sensitiveness are two different property of governor which is inversely related.
  • Sensitiveness is the Range of speed/Mean speed whereas Sensitivity is Mean speed/Range speed.
  • Thus when an isochronous condition happens that N1 = N2 and range becomes zero, it means infinite sensitivity.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...