O-rings are a type of ________ seal.
A) Static
B) Lip
C) Dynamic
D) Inside
A) Static
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Fractionation occurs when ____.
A. some of a blended refrigerant evaporates or condenses before the rest of the blend B. when only a fraction of the total charge has been added to a system C. the operating pressures of a system increase D. Both a and c.
____ wiring is the term used for conductors used for low voltage circuits.
A. Thin insulation B. Secondary C. Primary D. Low gauge
What is the equivalent impedance, in rectangular form, of the series combination of 1<0°> and 1<90°>?
A. 1 + j B. 2 ?2j C. 1 ? j D. 0 E. 2 + 2j
A sleeve bearing would typically be used in a motor that operates with a ____.
A. light load and where noise is a factor B. heavy load and where noise is a factor C. heavy load in a dirty atmosphere D. heavy load in a moist atmosphere