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Applied Mechanics - Engineering

Q1:

A load of 500 kg was lifted through a distance of 13 cm. by an effort of 25 kg which moved through a distance of 650 cm. The velocity ratio of the lifting machine is

A 50

B 55

C 60

D 65

E 70.

ANS:A - 50

To calculate the velocity ratio of the lifting machine, we use the formula for the velocity ratio: Velocity Ratio=Distance moved by effort / Distance moved by loadVelocity  Given:

  • Effort (E) = 25 kg
  • Distance moved by effort (DE) = 650 cm
  • Load (L) = 500 kg
  • Distance moved by load (DL) = 13 cm
Now, we can substitute the given values into the formula: Velocity Ratio=DE/DL =650 cm / 13 cm=50 Therefore, the velocity ratio of the lifting machine is 50.