Technician A says that although most technicians stir paint, the step is not that important and could be skipped. Technician B says that once paint and solvents are mixed together, they cannot be separated again. Who is correct?
A. Technician A only
B. Technician B only
C. Both Technicians A and B
D. Neither Technician A nor B
A. Technician A only
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Which of the following is the amount of water vapor in the air, measured by weight in grains?
a. convection b. enthalpy c. condensation d. humidity
Which of the following refrigerant piping techniques help to get oil to flow up a riser in a suction line?
a. Selecting a line size that results in a very low velocity. b. Selecting a line size that is one or two sizes larger than the rest of the line. c. Installing a trap at the bottom of the riser. d. Installing a liquid-to-suction heat exchanger.
The grade of fuel oil most commonly used in residential oil fired furnaces is
A) Number 1 B) Number 5 C) Number 2 D) Number 6
Technician A says sulfur dioxide is one of the key elements causing acid rain. Technician B says a marine environment commonly results in an accelerated oxidation process. Who is correct?
A. Technician A only B. Technician B only C. Both Technicians A and B D. Neither Technician A nor B