- Study guides, Class notes & Summaries

R-22 vapor line diameters and lengths are typically specified for a: - Vapor pressure drop that does not exceed 6 - 7 psi or 6°F. The primary purpose of using flux when soldering copper or brass parts is to: - Prevent oxidation. The water that results from a defrost cycle of an air to air heat pump (runoff) must: - Drain off and away from the outdoor coil to prevent excessive ice can build up on the bottom of the coil and reduce capacity. The component used to reduce sound transmission a...

NATE HEAT PUMP RETAIL 2024 Questions with 100% Correct Answers

Advanced Patho NURS 5315 exam 1 action potential The process by which excitable cells transmit information from one to another. How is the action potential altered by a potassium imbalance? (Hyperkalemia) The ECF has more K+ ions. The membrane potential becomes more positive (hypopolarized). Cells become MORE excitable. T waves peak. QRS complexes widen. Causes dysrhythmias, weakness, paresthesia. {If membrane potential becomes equal to threshold potential cardiac standstill occurs}...