Which class of refrigerants is typically supplied in drums?
a. Class I
b. Class II
c. Class III
d. Class IV
a. Class I
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51.972 = ____ to two decimal places.
A. 2499.08 B. 2537.36 C. 2698.88 D. 2700.88
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¿Qué tamaño de la tubería de aislamiento puede superponerse al aislante de fibra de vidrio para tuberías de 2 x 1 pulgadas (5,08 x 2,54 cm)?
a. 2 pulgadas (5,08 cm) b. 1 pulgada (2,54 cm) c. 3 pulgadas (7,62 cm) d. 4 pulgadas (10,16 cm)
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An APAD CM-813 module does not receive input information from:
A. The high pressure switch B. The low pressure switch C. The ECM fan relay D. The cab thermostat
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The time interval between two successive peaks of a sustained sine wave on a Ziegler-Nichols graph is the ____.
A. ultimate gain B. ultimate proportional band C. ultimate period D. all of the above
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