Because toxic gas may be created, pipe that is to be welded or otherwise subjected to heat should not be lubricated with _____.
a. pipe joint compound
b. Teflon tape
c. pipe dope
d. graphite paste
b. Teflon tape
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Oxides of nitrogen (NOx) are caused by:
A. High cylinder temperature B. A rich air/fuel mixture C. Ignition misfires D. Low cylinder temperature
The most common welding process is _____.
a. GMAW b. SMAW c. GTAW d. TMAW
On a simple shell and tube heat exchanger a process technician would turn the device into a bomb if he closed which of the following valves first.
a. tube inlet valve #1- process fluid 125 F b. tube outlet valve #2- process fluid 325 F c. shell inlet valve #3- steam d. shell outlet valve #4- steam
Satellite imagery can be used to do the following in range management:
A) monitoring changes in livestock productivity through time. B) predict economic outcomes of range management practices. C) track trends in vegetation cover and composition. D) All of the above E) None of the above