When drawing a PH diagram of an operating system, how is placement of the condenser and evaporator lines determined?
What will be an ideal response?
The evaporator and condenser lines are horizontal lines drawn across the saturation curve on the constant pressure lines that are equal to the system operating pressures after converting them to psia.
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A condensing unit with four motor-compressor assemblies manifolded together must provide the suction pressure for the ____.
A. lowest temperature evaporator B. midrange temperature evaporator C. highest temperature evaporator D. none of the above
A brake warning lamp on the dash remains on whenever the ignition is on. If the wire to the pressure differential switch (usually a part of the combination valve or built into the master cylinder) is unplugged, the dash lamp goes out. Technician A says that this is an indication of a fault in the brake hydraulic system. Technician B says the problem is probably due to a stuck parking brake cable
switch. Who is right? A) Technician A only B) Technician B only C) Both A and B D) Neither A nor B
Slots are often used in brake pads because they ________
A) Reduce brake noise B) Increase brake life C) Improve braking performance D) Reduce brake fade
The tool used to create internal threads is called a ____________________.
Fill in the blank(s) with the appropriate word(s).