The typical shielding gas for GTAW on deoxidized copper that is over 1/8? (3.2 mm) thick is _____

a. helium
b. hydrogen
c. oxygen
d. argon


a

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Daily consumption of water in a horse's diet can average between ____ gallons.

A. 7 to 9 B. 10 to 12 C. 15 to 18 D. 20 to 25

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What is called "black death"?

A) Desiccant B) Dried refrigerant C) Sealant D) Teflon from the compressor piston rings

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Ammonia is compressed from a saturated vapor at 120 kPa to 800 kPa and 140ºC. Its efficiency is nearest:

A) 76% B) 79% C) 82% D) 85%

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In the Southwest, which months can be the hardest on wildlife?

a. May and June b. August and September c. January and February d. January and June

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