?The oxygen and ____________________ flame is the only 100% nonpolluting fuel-gas flame.
Fill in the blank(s) with the appropriate word(s).
hydrogen
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When a cutting job is completed and the oxyfuel equipment is no longer needed, the first step in shutting down the oxyfuel cutting equipment is to _____.
a. close the fuel gas cylinder valve b. back out the fuel gas and oxygen regulator adjusting screws c. open the fuel gas torch valve d. open the oxygen torch valve
Producing liquid fuel from coal or natural gas usually uses which process?
A) Fischer-Tropsch B) Methanol to gasoline (MTG) C) P-series D) Syncrude
Calculate the amount of heat required to change 5 lb of 32°F ice to water
A) 5 lb × 32°F × 0.5 BTU/lb = 80 BTU B) 5 lb × 144 BTU/lb = 720 BTU C) The amount of heat required cannot be calculated without knowing the ending temperature of the water. D) No extra heat is required because the ice is already at the melting temperature.
A demultiplexer has multiple inputs and a single output
Indicate whether the statement is true or false