The total job takes 3.5 hours. What is the average hourly cost of labor, to the nearest cent?
A. $19.86
B. $20.34
C. $20.58
D. $21.64
Answer: A
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Food and water receptacles can be sanitized using
A. Pressurized steam B. Hot water (180ºF or higher) C. Soap or detergent D. Detergents and disinfectants followed by rinsing with hot water E. All of the above
Which type of diode can be used in a digital display window?
A. light emitting diode B. zener diode C. small signal diode D. photo diode
When performing the startup and operational check for reciprocating compressors, check that the compressor's soft foot has been ________ to the manufacturer's specifications
A) repaired B) torqued C) purged D) shimmed
Refer to the figure below. On an HCFC-22 system, liquid line pressure is 202 psig (1,393 kPa) and the measured liquid line temperature is 100°F (37.8°C). The subcooling is _____.
a. 1°F (0.6°C)
b. 2°F (1.1°C)
c. 4°F (2.2°C)
d. 8°F (4.4°C)