An advantage of open drive compressors is that:
A) They are generally less expensive that comparable semi-hermetic compressors.
B) The motor and compressor can be replaced separately.
C) They require no type of regular maintenance.
D) They are smaller and more compact than hermetic compressors.
Question 2
A system that protects workers from the release of hazardous energy while they work with machines and
equipment is referred to as _____.
a. a disconnect
b. a barricade system
c. lockout/tagout
d. an energy-neutral system
How stomatal pores open and close.
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