How is the maximum oil pressure determined?
A) By the tension of the piston rings B) By the tension of the relief valve spring
C) By the speed of the oil pump D) By bearing clearances
B
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If a rectangle has equal lengths, equal widths, and equal __________, then the layout is said to be square.
What will be an ideal response?
What information is necessary to determine a system balance point?
A) The manufacturer's installation instructions, which publish the equipment balance point B) The balance point is determined as part of the heat load study before the equipment is chosen. C) A heat load calculation and the system capacity at two operating conditions D) The balance point for all AHRI rated heat pumps is 35°F.
A rule of thumb by many designers is that ____ percent of the system pressure should be dropped across the valve.
A. 10 B. 25 C. 50 D. 75
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).