LEVERS AND SIMPLE MACHINES - Practice Mode

1) What is the ratio between the distance moved by the effort to the distance moved by the load?

Mechanical advantage Velocity ratio Efficiency Fulcrum

Correct Answer: Velocity ratio

2) What is the mechanical advantage, if a load of 1000 kg is lifted by a simple machine and effort applied is 250 kg?

6 8 3 4

Correct Answer: 4

3) What is the velocity ratio of a wheel and axle if the radii of wheel and axle are 375 mm and 75 mm respectively?

3 4 5 6

Correct Answer: 5

4) What is the velocity ratio of a simple machine of a mass 120 kg is lifted to a height of 5 metres by a force of 60 kg moving 15 metre. Calculate velocity ratio?

1 2 3 4

Correct Answer: 3

5) What is the efficiency of a simple screw jack having velocity ratio is 314.2 and mechanical advantage is 220?

0.6 0.65 0.7 0.75

Correct Answer: 0.7

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