A coil has an inductance of 3 H and a wire resistance of 15 ?. How long will it take for the current to reach its full value?
A. 45 seconds
B. 0.2 seconds
C. 1.0 seconds
D. 25 seconds
Answer: C
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The manufacturer determines the ____ by multiplying the rated-load current, or the branch-circuit selection current of the hermetic refrigerant motor-compressor, by 125 percent.
A. maximum continuous current B. maximum overcurrent C. maximum circuit ampacity D. minimum circuit ampacity
The hub of a wind turbine is 137.4 ft. above the ground. The length of a blade is 72.7 ft?. Find the distance from the ground to the blade tip when it is closest to the ground.
Fill in the blank(s) with the appropriate word(s).
Which best describes the outlook for future career opportunities in agribusiness?
a. Excellent, because of the opportunities in agribusinesses tied to chemical and biological advances. b. Marginal, as the number of farms in the U.S. is shrinking rather than increasing. c. Risky, because of the problems of food safety. d. Poor , as automation has greatly reduced the need for human labor. e. Uncertain, because of problems in obtaining capital for expansion.
In ____________________ timers, the contacts stay in their original position until a solenoid plunger has moved through its entire travel distance.
Fill in the blank(s) with the appropriate word(s).