The EU:
a. Is fully integrated.
b. Is an economic union, but not a political union.
c. Has adopted a common currency.
d. b and c above.
e. All of the above.
d
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The stone wheel mounted to a bench grinder can be used for ________
A) Sharpening chisels and blades B) Cleaning gaskets from surfaces C) Both A and B D) Neither A nor B
What type of compressors are most commonly used in rooftop packaged units?
A) Hermetic rotary and hermetic centrifugal compressors B) Hermetic reciprocating or hermetic scroll compressors C) Open type centrifugal and open type screw compressors D) Semi-hermetic scroll or semi-hermetic rotary compressors
The transfer of heat by direct contact is called _____
a. conduction b. convection c. radiation d. evaporation
When water must be replenished in a battery it should be:
A. Filled till the fluid level reaches the vents B. Level with the top of the plates C. Just below the top of the plates D. 1/8 inch below the vents