The density of a gas that occupies 30 cubic feet and weighs 3 pounds is:
A) Density = 3 pounds / 30 cubic feet = 0.1 lbs/ft3. B) Density = 30 cubic feet / 3 pounds = 10 ft3/lb.
C) Density = 3 pounds × 30 cubic feet = 900 lbs/ft3. D) Density = 30 cubic feet + 3 pounds = 33 lbs/ft3.
A
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Answer the following statement(s) true (T) or false (F)
1. Most motors are successfully started at 90 percent of line voltage. 2. The starting transformers are inductive loads. 3. In an autotransformer-type starter the timing for the time-delay relay that controls the transfer from the reduced voltage condition to full voltage is not adjustable. 4. De-energizing the transformers while in the running position is done to conserve electrical energy. 5. Magnetic overload relays are used on large reduced voltage starters.
The purpose of the ____ valve is to prevent gases from accidentally flowing through the torch and into the wrong hose.
A. flashback arrestor B. reverse flow C. safety release valve D. safety disc
Most cows should conceive so the herd average is within a range of ________ days after
calving. A. 55 to 70 B. 85 to 100 C. 115 to 130
What size designation is an 11"x17" sheet?
A. A B. B C. C D. D E. E