In a hydraulic lift, if the input power is 500 W and the efficiency is 80%, what

Practice Questions

Q1
In a hydraulic lift, if the input power is 500 W and the efficiency is 80%, what is the output power?
  1. 400 W
  2. 500 W
  3. 600 W
  4. 700 W

Questions & Step-by-Step Solutions

In a hydraulic lift, if the input power is 500 W and the efficiency is 80%, what is the output power?
  • Step 1: Understand the terms. Input power is the power you put into the lift, which is 500 W.
  • Step 2: Know the efficiency. Efficiency is how well the lift uses the input power, given as 80%, or 0.8 in decimal form.
  • Step 3: Use the formula for output power. The formula is: Output Power = Efficiency * Input Power.
  • Step 4: Plug in the numbers. Replace Efficiency with 0.8 and Input Power with 500 W in the formula.
  • Step 5: Calculate the output power. Multiply 0.8 by 500 W to get 400 W.
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