The two substances used in liquid column thermometers are ____________________ and ____________________.
Fill in the blank(s) with the appropriate word(s).
alcohol, mercury
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? Identify and state the historical significance of Thomas Macdonough.
What will be an ideal response?
Valve over lap is the time when both valves are closed.
Answer the following statement true (T) or false (F)
?What changes to the welding machine are required to change between short-circuiting and axial spray or between axial spray and buried arc transfer methods?
A. ?Change the shielding gas from Ar to 100% CO2 or He to Ar+O2. B. ?Make the changes in the welding machine's voltage and amperage settings. C. ?Increase the voltage. D. ?Increase the amperage.
Technician A says that if the sun gear is driven while the ring gear is held, the planet gears will walk around the inside of the ring gear. Technician B says that if the sun gear is driven while the carrier is held, the ring gear is forced to rotate at a slower speed than the sun gear. Which technician is correct?
A) Technician A only
B) Technician B only
C) Both technicians
D) Neither technician