Engineering College

Please answer ASAP!!

How do we define energy efficiency?

А.) the ratio of the actual output energy to the input energy

B.) the ratio of power gain to power loss

C.) the product of input power and output power

D.) the sum of potential and kinetic energy

Answers

Answer 1

Answer:

a

Explanation:

that is what energy efficiency is

Answer 2
The correct answer is a

Related Questions

Considering how likely the risk is to affect the company’s profits is part of which component of risk management?
Risk identification
Risk assessment
Risk control
Risk mitigation

Answers

risk identification is the answer

Consider one-dimensional heat conduction through a large plane wall with no heat generation that is perfectly insulated on one side and is subjected to convection and radiation on the other side. It is claimed that under steady conditions, the temperature in a plane wall must be uniform (the same everywhere). Is this claim reasonable

Answers

Answer:

YES, this claim reasonable

Explanation:

the temperature in a plane wall is uniform since no heat is penetrating into the large plane wall and therefore, there is no heat transfer from the wall under steady conditions,  

This condition will be met only when there are no temperature differences within the wall and the the outer surface temperature of the wall is equal to the temperature of its surrounding.

Therefore, Yes, this claim is reasonable

on the same scale for stress, the tensile true stress-true strain curve is higher than the engineeringstress-engineering strain curve. Explain whether this condition also holds for a compression test.

Answers

Answer:

The condition does not hold for a compression test

Explanation:

For a compression test the engineering stress - strain curve is higher than the actual stress-strain curve and this is because the force needed in compression is higher than the force needed during Tension.  The higher the force in compression leads to increase in the area therefore for the same scale of stress the there is more stress on the Engineering curve making it higher than the actual curve.

Hence the condition of : on the same scale for stress, the tensile true stress-true strain curve is higher than the engineering stress-engineering strain curve. does not hold for compression test

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