A turbine-generator combination extracts 800 kW from the water. If the efficiency of the turbine is 0.9 and the efficiency of the generator is 0.85, the shaft power, in kW, produced by the turbine is

the shaft power, in kW, produced by the turbine is 720 kW

Explanation:

Given that;

Power extracted = 80kw

Efficiency of turbine = 0.9

efficiency of generator = 0.85

To calculate the shaft power, in kW, produced by the turbine we say;

Shaft power = Power extracted × efficiency of turbine

Shaft power = 800 kW × 0.9

Shaft power  = 720 kW

therefore the shaft power, in kW, produced by the turbine is 720 kW

the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true?

a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of

5

9

degree celsius.

a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit.

a temperature increase of

5

9

degree fahrenheit is equivalent to a temperature increase of 1 degree celsius.

a) i only

b) ii only

c) iii only

d) i and ii only

answer:

what happend?

explanation: