What type of thread lubricant should be used when connecting the oxygen regulator to the oxygen cylinder:
A) Only non-flammable packing.
B) Teflon tape.
C) Light weight machine oil.
D) No lubricant or sealant of any kind should be used.
D
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At a constant vehicle speed, which gear ratio will result in higher engine RPM?
A) 1:1 B) 3:1 C) 2:1 D) 0.75:1
High school graduation is a requirement to become a soil conservation technician
Indicate whether the statement is true or false
The main valve in a pilot-operated four-way reversing valve is moved by pressure created by the ____.
A. refrigerant boiling in the coil B. pressure reduction in the condenser C. change in the action of the metering device D. low and high side pressure difference
If you pull a pendulum back and let it go, the time required for it to return to approximately the same place from which it was released is called
a. the period b. the frequency c. the natural frequency d. the amplitude