What allows the safety relay to operate?
A) Heating up the heat exchanger B) Increasing the current flow
C) Shutting off the burner D) Decreasing the current flow
B
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A(n) ____________________ is a general term that is used to refer to either a regular feature of size or an irregular feature of size.
Fill in the blank(s) with the appropriate word(s).
In the excavation support system using soldier piles, the soldier piles consist of
A) sheet steel. B) structural steel sections. C) sheet aluminum. D) precast concrete. E) reinforced concrete.
A mixture of saturated liquid water and saturated steam at T = 393.15 K has a specific enthalpy of 2000 kJ/kg. What is the quality of this mixture?
A. 0.321 B. 0.738 C. 0.679 D. -0.138 E. 0.262
________________________ is a bimetallic disc that senses compressor discharge temperature and opens at 270 degrees F.
Fill in the blank(s) with the appropriate word(s).