Multiple Choice Questions (MCQ) on Flywheel
1. The radius of gyration of a solid disc type flywheel of diameter ‘D’ is
a. D b. D/2 c. D/√2 d. (√3/2)D
2. With usual notations for different parameters involved, the maximum fluctuations of energy for a flywheel is given by
a. 2ECS b. ECS/2 c. 2ECS2 d. 2E2CS
(Ans:a)
3. Turning moment diagram is a graph between
a. Torque and Crank angle b. Torque and crank radius
c. Force and crank radius d. none of the above
(Ans: a)
4. Mean resisting torque in Turning Moment diagram is given by
a. Work done per cycle/Angle turned during the cycle
b. Work done per cycle x Angle during the cycle
c. Work done per revolution /Angle during the cycle
d. None of the above
(Ans: a)
5. The energy is stored in Flywheel in form of
a. Potential energy b. Kinetic energy c. Heat energy d. Electrical energy
(Ans: b)
6. The radius of Gyration (k) for Rim Type Flywheel having radius ‘r’ is given by
a. k = 2r b. k=r/2 c. k=r d. k=r/3
(Ans: c)
7. The coefficient of fluctuation of speed of Flywheel is given by
a. (N1-N2)/N b. (N1+N2)/N c. (N1-N2) x N b. (N1+N2) x N
Where N1 =Maximum speed, N2 = Minimum speed, N = Mean speed.
(Ans: a)
8. The Coefficient of fluctuation of energy of flywheel is given as
a. (Emax – Emin)/Work done per cycle b. (Emax + Emin)/Work done per cycle
c. (Emax – Emin) x Work done per cycle d. (Emax + Emin) x Work done per cycle
Where Emax = Maximum Kinetic energy of the Flywheel.
Emin = Minimum Kinetic energy of the Flywheel
(Ans: a)