Recall Quiz - Efficiency Calculations 290121

Last updated over 5 years ago

3 questions

1

Which of the following is not a correct method to calculate efficiency?

divide useful energy by total energy input

divide useful power output by total power output

divide wasted energy by total energy input

large / large

large / small

small / small

small / large

25 %

75 %

0.75%

7.%%

Which of the following is not a correct method to calculate efficiency?

divide useful energy by total energy input

divide useful power output by total power output

divide wasted energy by total energy input

If an energy transfer is very efficient that means that a …… amount of energy is being transferred usefully & a …….. amount is dissipated.

large / large

large / small

small / small

small / large

If a transfer has an efficiency of 0.75, we can also write this as being __% efficient.

25 %

75 %

0.75%

7.%%