In GTAW, the arc temperature is around ____ degrees Fahrenheit.
A. 3,000
B. 6,000
C. 11,000
D. 17,000
Answer: C
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Calculate Q, W, ?U, and ?H in each case. Take 
and 
What will be an ideal response?
One mole of an ideal gas, initially at 30°C and 1 bar, is changed to 130°C and 10 bar by three different mechanically reversible processes:
? The gas is first heated at constant volume until its temperature is 130°C; then it is compressed isothermally until its pressure is 10 bar.
? The gas is first heated at constant pressure until its temperature is 130°C; then it is compressed isothermally to 10 bar.
? The gas is first compressed isothermally to 10 bar; then it is heated at constant pressure to 130°C.
Alternatively, take 
and 
Amy’s strawberry patch produced 1,800 gallons of strawberries. She sold the strawberries for $1.50 per quart if the public picked them or $2.50 per quart already picked. She paid $0.75 per quart for picking. She has a 22 percent loss if the public picks the strawberries.
a. How many quarts of strawberries were produced? b. What does it cost to have the strawberries picked? c. Which is the better deal and by how much?
A burned valve causes a misfire that is evident at idle but not at higher engine speeds.
Answer the following statement true (T) or false (F)
The only two places not swept by Ronald Reagan in his 1984 electoral landslide over former Vice President Walter Mondale were
A. Washington State and Hawaii. B. Minnesota and Wisconsin. C. Massachusetts and Vermont. D. Minnesota and the District of Columbia. E. New York and New Jersey.