Technician A says that aluminum on the thread of a bolt indicates that the threads in the case are damaged. Technician B says that all bolts should be checked for damage before they are reused. Who is correct?
A. A only
B. B only
C. Both A and B
D. Neither A nor B
Answer: C. Both A and B
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____ notes are notes that apply only to a specific subset of the drawings, such as the general structural notes, general architectural notes, or general mechanical notes.
A. General discipline B. General reference C. Detail D. Reference
Which of the following could cause this condition?
A walk-in with TEV has the following conditions: ? Subcooling is 0° ? Superheat is 25° a. Dirty condenser b. Dirty or iced evaporator c. Overcharge d. Undercharge
Silicon wafer is susceptible to warping when the wafer is subjected to a temperature difference across its thickness. Thus, steps needed to be taken to prevent the temperature gradient across the wafer thickness from getting large. As an engineer in a semiconductor company, your task is to determine the maximum allowable heat flux on the bottom surface of the wafer while maintaining the upper surface temperature at 27°C. To prevent the wafer from warping, the temperature difference across its thickness of 500??m cannot exceed 1°C.
Heat pump thermostats generally require two stages of heating in order to control:
A) The compressor and outdoor fan. B) The auxiliary heat. C) The indoor and outdoor sections. D) The first and second stage heat strips.