Why is it recommended that an acetylene cylinder valve never be opened more than 1/2 turn?
A) To regulate the pressure to the torch handle
B) To minimize the strain of the high cylinder pressures on the valve threads
C) To prevent the valve from getting stuck in the fully opened position
D) To allow rapid shutoff in the case of an accident
D
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To bleed a cooling system without an airlift, remove a heater hose at the highest place in the system while filling the ____________________.
Fill in the blank(s) with the appropriate word(s).
An individual who passes a particular ASE-certification examination becomes certified in that test area.
Answer the following statement true (T) or false (F)
The NEC® requires a vertical clearance of at least __________ feet above public streets, alleys, roads, and parking areas subject to truck traffic.
a. 10 b. 12 c. 15 d. 18
Why are lawn fertilizers usually high in nitrogen?
What will be an ideal response?