Soldering fluxes are chemical compounds such as ____.
A. fluorides
B. chlorides
C. boric acids
D. muriatic acid
Answer: D
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A four story building is 100 X 200 feet, with the first floor half dedicated to a sealed refrigeration system. What is the requirement for air circulation in CFM?
Fill in the blank(s) with the appropriate word(s).
PSIA at sea level under standard conditions is ____________________.
Fill in the blank(s) with the appropriate word(s).
Which of the following statements about energy conversion is true???
A. ?Photosynthesis in a leaf converts potential chemical energy into electromagnetic energy when utilizing sunlight to make carbohydrates. B. ?A ceiling fan converts kinetic energy into electromagnetic energy by moving air with rotating blades.? C. ?The whirling impeller of a pump converts electric energy into electromagnetic energy by lifting water into an elevated tank.? D. ?A solar cell converts the electromagnetic energy of sunlight into electricity.?
The following statements are all correct EXCEPT:
A) Fuel systems that have never been cleaned may have developed wax deposits as well as carbon. B) On engines operating very poorly, the PCM should be relearned after fuel system cleaning. C) Relearning the PCM should never be attempted. D) The fuel rail and pressure regulator should be cleaned as well as fuel injectors.