What color should the flames be in a correctly adjusted gas burner?
What will be an ideal response?
Blue
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What is the Spearin doctrine and how could a contractor use this as a “shield” or a “sword?”
What will be an ideal response?
Which compressor often uses multiple stages of compression to increase the pressure difference created by
the compressor? a. Centrifugal b. Rotary c. Reciprocating d. Scroll
If a voltage drop test is done and the result is outside of specification this means:
a. the battery needs to be charged b. there is a bad ground c. there is a short d. there is excessive resistance in the circuit
An ultrasonic level detector is a ____________________-type sensor which is ideal for measuring dangerous or sterile materials because it is ____________________.
Fill in the blank(s) with the appropriate word(s).