If a spool of welding wire meets specifications, but does not include a record of chemical composition or
strength, it is assumed that the wire is intended for _____.
a. rigid control fabrication
b. private use only
c. critical use
d. general use
d
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What collects on upper furnace tubes, causing oxidation failures and critically attacking refractory insulation?
A. Excess fuel B. Nitrogen oxide C. Vanadium ash D. Carburization
The above given specifications are ________________.
A. drawing specifics B. material keying legend C. material index D. master format
An inverting Schmitt trigger has ±15 V supply voltages and values of Rf1 = 3.3 k? and Rf2 = 1.2 k?. Assuming that RL 10 k?, what is the circuit's UTP and LTP?
A) UTP = +4 V, LTP = -4 V B) UTP = +10.26 V, LTP = -10.26 V C) UTP = +3.73 V, LTP = -3.73 V D) UTP = +5.45 V, LTP = 15.45 V
The impedance matching characteristic for a transformer is needed for a situation where maximum power transfer to the load is desired
Indicate whether the statement is true or false