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Introduction of the flywheel in a rotating system smoothens

Q.  
Introduction of the flywheel in a rotating system smoothens


Answer & Explanation

The absorption of energy by flywheel smoothens the twisting moment on the rotating shafts.

Thus correct option is: B.

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More Questions Theory of Machines:

Q.  
A flywheel of moment of inertia 9.8 kg·m2 fluctuates by 30 rpm for a fluctuation in energy of 1936 Joules. The mean speed of the flywheel is (rpm)

A. 600

B. 900

C. 968

D. 2940


Answer & Explanation

Q.  
The radius of gyration of a solid disc type flywheel of diameter D is

A. d

B. d/√2

C. d/2

D. d/(2√2)


Answer & Explanation

Q.  
Flywheels are fitted for single cylinder and multicylinder engine of the same power rating. Which of the following statement is true?

A. The flywheel will be smaller for single cylinder engine as compared to that for multi-cylinder engine.

B. The flywheel will be smaller for multi-cylinder engine as compared to that for single cylinder engine.

C. The flywheels for two engines will be identical.

D. The size of flywheel for a engine depends on the compression ratio.


Answer & Explanation

Q.  
If the rotating mass of a rim type flywheel is distributed on another rim type flywheel whose mean radius is half mean radius of the former, then energy stored in the latter at the same speed will be

A. Four times the first one

B. Same as the first one

C. One-fourth of the first one

D. One and half times the first one


Answer & Explanation
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