A thermostatic expansion valve system operating with a refrigerant undercharge will have:
A) A low system subcooling. B) A low superheat.
C) A high system subcooling. D) Higher-than-normal compressor amp draw.
A
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When a formula has more than one mathematical operation, first ____.
A. resolve any derivatives B. perform all operations within parentheses C. do all multiplication and division working from left to right D. do all addition and subtraction working from left to right
The term ____ means that there is only one wire coil that both the principle of electro-magnetism and the principle of electro-magnetic induction act on..
a. mutual induction b. conductor c. self-induction d. ampere
Explain the function of a dynamic seal.
What will be an ideal response?
If a 330 ? resistor, 270 ? resistor and 68 ? resistor are connected in parallel, what is the approximate value for RT?
A) 68 ? B) 22 ? C) 47 ? D) 668 ?