Three broad categories of fuel gases are:
A) Low pressure, high pressure, and very high pressure.
B) Organic, inorganic, and mixed.
C) Natural, manufactured, and liquified petroleum.
D) Hydrocarbon gas, carbon-free gas, and hybrid gas.
C
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A collapsible spacer is used in some differentials to provide ________.
A. A lubrication path to the drive pinion bearing. B. The proper amount of slippage in a limited slip differential. C. The proper preload for the drive pinion bearings. D. The proper preload for the side bearings.
An air-acetylene unit usually consists of a B tank of acetylene gas, a regulator, a hose, and a torch.
Answer the following statement true (T) or false (F)
Describe a set of working drawings.
What will be an ideal response?
When gas cylinders are disconnected from a plasma arc cutting unit before it is stored, be sure to _____
a. install a cap on the regulator outlet b. set the regulator to its maximum setting c. lay all cylinders down on their side d. replace the cylinder caps