In the accompanying figure, the normally open contact of float FS1 is used to prevent the ____________________ from energizing unless the tank is full of water.
Fill in the blank(s) with the appropriate word(s).
solenoid coil
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A(n) ____________ is a substance that causes or accelerates a chemical reaction without itself being changed.
Fill in the blank(s) with the appropriate word(s).
What is the additional charge required for a system with a factory charge of 56 oz of R-410A, an assumed length of 15 ft, and a 3/8 in liquid line that is 35 ft long?
A) 35 × 0.6 = 21 ounces B) (35 - 15 ) × 0.6 = 12 ounces C) 56 oz + 12 oz = 68 ounces D) 56 oz + 21 oz = 77 ounces
The amount of force it takes to compress or twist a spring a certain amount is called _____________.
Fill in the blank(s) with the appropriate word(s).
Which of the following objects are usually sectioned?
A. gaskets B. bolts C. gear teeth D. webs E. none of the above