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flywheel

GATE Mechanical Engineering · Theory of Machines · 1998-2024

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2024 Q23

The change in kinetic energy ΔE of an engine is 300 J, and minimum and maximum shaft speeds are ω_min = 220 rad/s and ω_max = 280 rad/s, respectively. Assume that the torque-time f...

medium
2024 PYQ

The change in kinetic energy $\Delta E$ of an engine is $300$ J, and minimum and maximum shaft speeds are $\omega_{min} = 220$ rad/s and $\omega_{max} = 280$ rad/s, respectively. A...

easyanswer keybasic explanation
2021 Q54

The torque provided by an engine is given by T(θ) = 12000 + 2500 sin(2θ) N.m, where θ is the angle turned by the crank from inner dead center. The mean speed of the engine is 200 r...

hardanswer key
2015 PYQ

For the same material and the mass, which of the following configurations of flywheel will have maximum mass moment of inertia about the axis of rotation $$OO’$$ passing through th...

easyanswer key
2014 PYQ

Maximum fluctuation of kinetic energy in an engine has been calculated to be $$2600$$ J. Assuming that the engine runs at an average speed of $$200$$ rpm, the polar mass moment of...

medium
2014 PYQ

Consider a flywheel whose mass $$M$$ is distributed almost equally between a heavy, ring-like rim of radius $$R$$ and a concentric disk-like feature of radius $$R/2$$. Other parts...

easy
2013 PYQ

A flywheel connected to a punching machine has to supply energy of $$400$$ Nm while running at a mean angular speed of $$20$$ rad/s. If the total fluctuation of speed is not to exc...

easyanswer key
2012 PYQ

A circular solid disc of uniform thickness $$20mm,$$ radius $$200mm$$ and $$mass$$ $$20kg,$$ is used as a fly wheel. If it rotates at $$600$$ $$rpm,$$ the kinetic energy of the fly...

easyanswer key
2007 PYQ

The speed of an engine varies from $$210$$ rad/s to $$190$$ rad/s. During cycle the change in kinetic energy is found to be $$400$$ Nm. The inertia of the flywheel in kgm 2 is

easyanswer key
2006 PYQ

If $${C_f}$$ is the coefficient of speed fluctuation of a flywheel then the ratio of $${\omega _{\max }}/{\omega _{\min }}$$ will be

easyanswer key
2003 PYQ

For a certain engine having an average speed of $$1200$$ rpm, a flywheel approximated as a solid disc, is required for keeping the fluctuation of speed within $$2$$% about the aver...

mediumanswer key
2001 PYQ

Which of the following statement is correct?

easyanswer key
1998 PYQ

A flywheel of moment of inertia $$9.8$$ kg m 2 fluctuates by $$30$$ rpm for a fluctuation in energy of $$1936$$ Jouls. The mean speed of the flywheel is (in rpm)

easyanswer key