Top 50+ Solved Balancing MCQ Questions Answer
Q. In the given figure, m1=10 Kg, m2=30Kg and m=50 Kg, if r=0.3m, l=1m, findl2 = 0.5m, find r1 in m.
a. 1.5
b. 0.75
c. 3
d. 6
Q. From the given data, find the balancing mass’s inclination in degrees if r=0.2m required in the same plane.Masses = 200kg, 300kg, 240 kg, 260Kg,
a. 201.48
b. 200.32
c. 210.34
d. 202.88
Q. Which of the following statements are associated with complete dynamic balancing of rotating systems? 1. Resultant coupledue to all inertia forces is zero. 2. Support reactions due to forces are zero but not due to couples . 3. The system is automatically statically balanced. 4. Centre of masses of the system lies on the axis of rotation.
a. 1, 2, 3 and 4
b. 1, 2, and 3 only
c. 2, 3 and 4 only
d. 1, 3 and 4 only
Q. In a multicylinder inline engine, each imaginary secondary crank with a massattached to the crankpin is inclined to the line of stroke at which angle?
a. Twice the angle of crank
b. Half the angle of crank
c. Thrice the angle of crank
d. Four times the angle of crank
Q. In order to achieve stability, the sum of secondary forces and secondarycouples must be ------- and their respective polygons must be …......
a. Zero, Closed
b. one, Open
c. Zero, open
d. one, closed
Q. For the secondary balancing of the engine, which of the condition is necessary?
a. Secondary force polygon must be close
b. Secondary force polygon must be open
c. Primary force polygon must be close
d. Primary force polygon must be open
Q. The numerical values of the secondary forces and secondary couples couplesmay be obtained by considering the ___________
a. Revolving mass
b. Reciprocating mass
c. Translating mass
d. Rotating mass