Engineering Mechanics

(^598) „„„„„ A Textbook of Engineering Mechanics

5. Explain the graphical method for balancing several bodies in one plane by a body in the
   same plane.

OBJECTIVE TYPE QUESTIONS

1. In order to balance a rotating body, another body of the same mass is attached to the
   rotating body on its opposite side.
   (a) Yes (b) No


2. A rotating body can only be balanced by
   (a) single body (b) two bodies
   (c) any number of bodies


3. The principle involved in balancing a system of balancing masses is that the resultant
   centrifugal force of the rotating bodies should be equal and opposite to that of the balanc-
   ing body.
   (a) Agree (b) Disagree


4. In order to balance a system of rotating bodies, we must know the angular velocity (ω) of
   the rotating shaft.
   (a) True (b) False


5. A single body can be balanced only by another body of
   (a) smaller mass (b) same mass
   (c) bigger mass (d) any one of them

ANSWERS

1. (b) 2. (c) 3. (a) 4. (b) 5. (d).

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