Digital manometers can be used to check:
A) CO ppm. B) Percentage of CO2.
C) Air particle count. D) Vents for proper operation.
D
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What type of couplings are used in applications where only small amounts of misalignment can be tolerated without damage to equipment or decreased performance?
A. Rigid B. Fluid C. Flexible D. Rotating
How can the heat pump melt the ice that forms on the outdoor coil?
What will be an ideal response?
Which of these statements is true regarding apprenticeships?
A) The shop often provides tuition assistance B) The apprentice gains on the job training while in school C) The apprentice works during the day and attends classes in the evening D) All of these
In an RC parallel circuit, ET = 277 V, R = 24 k?, and XC = 39 k?. What is the power factor?
A. 10% B. 61.54% C. 85.17% D. 92.41%