More than _____ species of plants and animals are listed as endangered
a. 1 million
b. 25,000
c. 2000
d. 12,000
False
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Technician A says that mixing small amounts of refrigerant is acceptable according to the EPA. Technician B says that each refrigerant must have unique fittings to reduce accidental mixing of refrigerants. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
?Which of the following might result in linear slag inclusions?
A. ?Improper shielding gas flow on a GTA weld. B. ?wormholes C. ?Making a SMA weld over a highly crowned previous weld. D. ?Too high of a welding current in the vertical up position.
The offset resistance model of a reverse-biased diode can be approximated as
A) a high value resistor in parallel with an open switch B) a high value resistor in series with a closed switch C) an open switch D) a reverse polarity voltage source in parallel with a resistor
Elevations should never be drawn at full scale in model space.
Answer the following statement true (T) or false (F)