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solaiman solaiman
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6 years ago
If a hydraulic system has pistons of different sizes and force is applied to the smaller piston, the force at the
  larger piston is _____.
 
  a. greater
  b. smaller
  c. the same
  d. half as much

 Q. 2

What measurements are required to check combustion efficiency?
 
  A) O2 , CO2 , and CO ppm
  B) Return air temperature, supply and temperature, and stack temperature
  C) Manifold pressure, firing rate, and gas heating value
  D) Ambient temperature, stack temperature, and flue gas O2
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bhinzbhinz
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6 years ago
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solaiman Author
wrote...
#2
6 years ago
Thank you

Can you answer the others that I've posted too? Face with Cold Sweat
wrote...
#3
6 years ago
I'll take a quick look at them
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