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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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
Constant current sources supply constant current to a load rather than constant ____________.
Fill in the blank(s) with the appropriate word(s).