The viscosity of engine oil is found where?
A) Lubrication guide B) Factory service manual or service information
C) Owners manual D) All of these
D
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Constant current sources supply constant current to a load rather than constant ____________.
Fill in the blank(s) with the appropriate word(s).
A lightning bolt carried a current of 2 kA and lasted for 3 ms. How many coulombs of charge were contained in the lightning bolt?
What will be an ideal response?
The AHRI definition of standard air is:
A) .075 lb/ft2 @ 80°F. B) 0.75 lb/ft3 @ 75°F. C) .075 lb/ft3 @ 70°F. D) .075 ft3/lb. @ 95°F.
How can ice storage help reduce system operating cost?
A) By reducing the condenser temperature and pressure using stored ice B) By charging the ice storage system during off-peak hours when electricity is less expensive C) By lowering the chiller evaporator temperature, making it operate more efficiently D) By supercooling the chilled water with ice