What type of thread lubricant should be used when connecting the oxygen regulator to the oxygen cylinder?
A) Teflon tape
B) Only nonflammable packing
C) Light-weight machine oil
D) No lubricant or sealant of any kind should be used.
D
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How does an automatic expansion valve prevent liquid floodback in a system?
a. It is not capable of preventing floodback. b. Keeping the evaporator pressure low prevents floodback. c. Keeping the evaporator temperature low prevents floodback. d. Keeping the evaporator pressure high prevents floodback
The proportion of cement to fine and coarse aggregate is called
a. comparison c. dry mixture b. ratio d. precise measuring
Technician A says that a thorough visual inspection should be performed on all ignition components when diagnosing an engine performance problem. Technician B says platinum spark plugs can be regapped after use in an engine. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
Refer to the RL circuit in Fig. 16.101. Find:
 figure 1.png)