1
GATE ME 2024
+1
-0.33

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. Assume that the torque-time function is purely harmonic. To achieve a coefficient of fluctuation of $0.05$, the moment of inertia (in kg.m$^2$) of the flywheel to be mounted on the engine shaft is

A

0.113

B

0.096

C

0.071

D

0.053

2
GATE ME 2015 Set 1
+1
-0.3
Consider a slider crank mechanism with nonzero masses and inertia. A constant torque $$\tau$$ is applied on the crank as shown in the figure. Which of the following plots best resembles variation of crank angle, $$\theta$$ versus time
A
B
C
D
3
GATE ME 2012
+1
-0.3
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 flywheel, in joules is
A
$$395$$
B
$$790$$
C
$$1580$$
D
$$3160$$
4
GATE ME 2001
+1
-0.3
Which of the following statement is correct?
A
Flywheel reduces speed fluctuations during a cycle for a constant load, but flywheel does not control the mean speed of the engine if the load changes.
B
Flywheel does not reduce speed fluctuations during a cycle for a constant load, but flywheel does control the mean speed of the engine if the load changes
C
Governor control a speed fluctuations during a cycle for a constant load, but governor does not control the mean speed of the engine if the load changes.
D
Governor controls speed fluctuations during a cycle for a constant load, and governor also controls the mean speed of the engine if the load changes.
GATE ME Subjects
EXAM MAP
Medical
NEET